SimSci Client Conference
Go here to register for $100 savings before September 13th!
Agenda details coming soon!
Showing posts with label SimSci-Esscor. Show all posts
Showing posts with label SimSci-Esscor. Show all posts
Tuesday, 23 July 2013
Sunday, 30 June 2013
OTS Tip: Internal Phases Free Water
Guest Blogger: Kalpana Garigipati, Senior Consultant -EECOTS, Invensys Operations Management
This Tip is about “Speed improvement and better Flash stability in models where FREE_WATER internal phases are used”
When using the "FREE-WATER" internal phases option in the Thermo tab, it is advisable to check if the water mole fraction is greater than 0.0000003. Free Water flash performs better if the hydrocarbon liquid phase has a nonzero water mole fraction even if the water mole fraction is extremely small (e.g. 0.0000003 mole frac). In the real world, it is unlikely the water mole fraction is exactly zero. If water is in the component slate but exactly zero, the Free Water flash sometimes exhibits erratic behavior.
If using "FREE-WATER" internal phases in your model and there is no water in some parts of it, then a small amount of water can be added safely in sources and you should see a speed improvement (simspd) in the model.
Guest Blogger: Kalpana Garigipati, Senior Consultant -EECOTS, Invensys Operations Management
About Operator Training: Invensys offers a computer-based training method, Operator Training Simulators (OTS), to help give operators the skills they need to run a process or plant. Refineries and other plants are being forced to rely on inexperienced operators due to the aging workforce. Undertrained employees reduce performance and profitability in a refinery and may also risk the safety of other employees. The aging workforce is moving closer to the age of retirement, making it imperative to train younger, less experienced employees. Invensys offers an Operator Training System to aid refineries in educating inexperienced operators, who will soon be relied upon to operate the refinery and perform operational excellence.
Operators learn the ins and outs of a refinery in this virtual control room. DYNSIM is a model that controls the plant response. Trainees learn how to react appropriately when a similar situation occurs in the actual plant. DYNSIM Checkout is the first process dynamic simulation product designed specifically for control checkout. This solution can validate control system design before it is installed in the plant which eliminates many problems that occur during startup.
Technical Support: As always, feel free to reach out to your local technical support team for more information.
Thursday, 27 June 2013
The global economy and regional regulations are placing greater economic pressures on refiners in the form of increased pricing pressure that affect profitability and require enhanced performance to allow the plant to remain profitable. Additionally, regulatory compliance and adherence to increasing stringent safety standards can adversely affect a refinery’s bottom line. Decreased margin from increased competition is forcing refiners to evaluate means to run more profitably. Refineries have been implementing profit generating activities for years, but the key is implementation and sustainability of a full-scale optimization program.
THE INVENSYS SOLUTION:
Invensys provides several optimization solutions. Invensys has extended its best-in-class solutions under SimSci for refinery optimization through integration of various individual products and applications designed to capture all areas of profit opportunity by providing the best optimization and regulatory compliance solutions for a refinery. These new solutions take SimSci’s leadership in refining optimization to a higher level. The various solutions allow the refinery to choose the level of optimization that is appropriate for their current situation.
Off-sites: Tank farms make up a large portion of a refining complex. Increased automation and operational performance reduces the cost of terminal operations, while at the same time improving safety compliance and business performance. Invensys Off-sites solutions have been in use in terminal and refinery sites globally for over 25 years, serving all of the major oil companies.
Process Optimization: ROMeo is the standard for process optimization in refining and can be used for either performance monitoring or process optimization. During performance monitoring, ROMeo trends the performance of equipment to identify problems and pinpoint equipment operational issues. An example would be the performance monitoring of a crude pre-heat train to monitor exchanger fouling and running case-studies to view which heat exchanger would impact profitability the most when cleaned. During process optimization, ROMeo automatically imports process data, reconciles that data, and optimizes the process within a set of operational bounds. One example would be to minimize the usage of hydrogen when upgrading heavier crude oil. In this example, ROMeo would be used to monitor hydrogen usage and minimize its consumption by altering the flow and conditions (temperature and pressure) of the various feedstocks.
Integrating ROMeo with Planning, Scheduling and Off-sites: Refiners can now leverage blend operations and optimization practices to improve efficiency and profitability across the entire refinery. Crude blend data available from off-sites blending operations can be used as input to process optimization software. Product properties that are calculated by process optimization software can then be used in off-sites product blending operations.
Visualization: Wonderware Intelligence provides the visualization technology that allows operators key performance indicator (KPI) visibility and monitoring through interactive dashboards in near real-time. This provides key information in desired context across Invensys and non-Invensys sources of operations data to achieve on the spot operational decision-making.
Automation: ArchestrA Workflow is powerful business process management software, a) helping enforce consistent policy and procedural execution from plant automation to Enterprise Resource Planning (ERP), b) enabling a reduction in process and response latency c) and providing the open framework to support the necessary governance, including notifications, escalations and approvals of all stakeholders in the collaboration environment. Mobile Solutions, from Wonderware IntelaTrac, enable workflow, data collection and general task management for plant operations, maintenance management, production tracking and compliance applications. Mobile Solutions result in improved operational discipline and reliability, increased workforce productivity, and enhanced safety and compliance. Condition Manager, from Avantis, is tied to asset health, reliability and/or availability. Predicting asset failures before they occur on critical refinery equipment can result in significant costs savings. Condition Manager collects data from any plant floor system which is OPC-compliant, analyzes that data, then acts upon it – letting operators know of any problematic conditions early enough to take corrective action before they escalate into serious upsets or, worse yet, unplanned shutdowns.
Advanced Process Control: While ROMeo is able to optimize operations once they have achieved steady-state, Connoisseur, the APC solution from SimSci-Esscor, offers optimization within a smaller time-frame. APC can help control a process to desired set-points to minimize fluctuation in the controllers and optimize output.
ACA.HF: The ACA.HF is the new standard in safety, simplicity, reliability, and accuracy for analysis of HF alkylation process performance. ACA.HF is a way to safely and simply obtain online measurement of %HF, %Water and %ASO in HF alkylation. This solution is an affordable alternative to FTNIR with highly reliable and repeatable accuracy. In fact, ACA.HF exceeds the precision of HF analysis with FTNIR. ACA.HF is a multivariable analyzer based on the application of proven Foxboro measurement technologies that are long-established in online analysis of process streams. The fact that measurements can be made in real-time with no safety risk allows refineries to enjoy the results without the risk of an accident or plant downtime.
Are you running at peak performance? What do you need help with? Let us know.
Thursday, 13 June 2013
The global economy and regional regulations are placing greater economic pressures on refiners in the form of increased pricing pressure that affect profitability and require enhanced performance to allow the plant to remain profitable. Additionally, regulatory compliance and adherence to increasing stringent safety standards can adversely affect a refinery’s bottom line. Decreased margin from increased competition is forcing refiners to evaluate means to run more profitably. Refineries have been implementing profit generating activities for years, but the key is implementation and sustainability of a full-scale optimization program.
THE INVENSYS SOLUTION:
Invensys provides several optimization solutions. Invensys has extended its best-in-class solutions under SimSci-Esscor for refinery optimization through integration of various individual products and applications designed to capture all areas of profit opportunity by providing the best optimization and regulatory compliance solutions for a refinery. These new solutions take SimSci-Esscor’s leadership in refining optimization to a higher level. The various solutions allow the refinery to choose the level of optimization that is appropriate for their current situation.
Off-sites: Tank farms make up a large portion of a refining complex. Increased automation and operational performance reduces the cost of terminal operations, while at the same time improving safety compliance and business performance. Invensys Off-sites solutions have been in use in terminal and refinery sites globally for over 25 years, serving all of the major oil companies.
Process Optimization: ROMeo is the standard for process optimization in refining and can be used for either performance monitoring or process optimization. During performance monitoring, ROMeo trends the performance of equipment to identify problems and pinpoint equipment operational issues. An example would be the performance monitoring of a crude pre-heat train to monitor exchanger fouling and running case-studies to view which heat exchanger would impact profitability the most when cleaned. During process optimization, ROMeo automatically imports process data, reconciles that data, and optimizes the process within a set of operational bounds. One example would be to minimize the usage of hydrogen when upgrading heavier crude oil. In this example, ROMeo would be used to monitor hydrogen usage and minimize its consumption by altering the flow and conditions (temperature and pressure) of the various feedstocks.
Integrating ROMeo with Planning, Scheduling and Off-sites: Refiners can now leverage blend operations and optimization practices to improve efficiency and profitability across the entire refinery. Crude blend data available from off-sites blending operations can be used as input to process optimization software. Product properties that are calculated by process optimization software can then be used in off-sites product blending operations.
Visualization: Wonderware Intelligence provides the visualization technology that allows operators key performance indicator (KPI) visibility and monitoring through interactive dashboards in near real-time. This provides key information in desired context across Invensys and non-Invensys sources of operations data to achieve on the spot operational decision-making.
Automation: ArchestrA Workflow is powerful business process management software, a) helping enforce consistent policy and procedural execution from plant automation to Enterprise Resource Planning (ERP), b) enabling a reduction in process and response latency c) and providing the open framework to support the necessary governance, including notifications, escalations and approvals of all stakeholders in the collaboration environment. Mobile Solutions, from Wonderware IntelaTrac, enable workflow, data collection and general task management for plant operations, maintenance management, production tracking and compliance applications. Mobile Solutions result in improved operational discipline and reliability, increased workforce productivity, and enhanced safety and compliance. Condition Manager, from Avantis, is tied to asset health, reliability and/or availability. Predicting asset failures before they occur on critical refinery equipment can result in significant costs savings. Condition Manager collects data from any plant floor system which is OPC-compliant, analyzes that data, then acts upon it – letting operators know of any problematic conditions early enough to take corrective action before they escalate into serious upsets or, worse yet, unplanned shutdowns.
Advanced Process Control: While ROMeo is able to optimize operations once they have achieved steady-state, Connoisseur, the APC solution from SimSci-Esscor, offers optimization within a smaller time-frame. APC can help control a process to desired set-points to minimize fluctuation in the controllers and optimize output.
ACA.HF: The ACA.HF is the new standard in safety, simplicity, reliability, and accuracy for analysis of HF alkylation process performance. ACA.HF is a way to safely and simply obtain online measurement of %HF, %Water and %ASO in HF alkylation. This solution is an affordable alternative to FTNIR with highly reliable and repeatable accuracy. In fact, ACA.HF exceeds the precision of HF analysis with FTNIR. ACA.HF is a multivariable analyzer based on the application of proven Foxboro measurement technologies that are long-established in online analysis of process streams. The fact that measurements can be made in real-time with no safety risk allows refineries to enjoy the results without the risk of an accident or plant downtime.
Are you running at peak performance? What do you need help with? Let us know.
Sunday, 19 May 2013
Avantis, SimSci-Esscor, Wonderware User Group Meetings - Oct 15-17 - Save the Date!
Will you be there? I hope to see you there!
Interested in presenting - let me know!
Interested in a specific topic - let me know!
We will be working on an agenda in the coming months, so now if a great chance to provide feedback on what you want to see.
Monday, 13 May 2013
About Yield Accounting: The Yield Accounting solution from Invensys addresses one of the most stressing issues of a refinery, petrochemical plant, or other processing facility: unaccounted losses. This solution improves the efficiency in a facility with data reconciliation, which finds errors in raw plant data and closes the mass balance and production accounting, which allows the plant to better account for feedstock and products. Material tracking and product yield tracking accounts for inventory and pinpoints losses.
Technical Support: As always, feel free to reach out to your local technical support team for more information.
Wednesday, 8 May 2013
In a one-on-one meeting with Invensys Operations Management President & CEO Michael Caliel and Systems Business President Gary Freburger,...read full article here
Interesting insights on Invensys and on the Automation industry from Invensys Operations Management President & CEO Michael Caliel and Systems Business President Gary Freburger. What do you think led to the rebound of the Automation Industry?
I feel confident in commenting on the Spiral Software acquisition. I really think this helps extend the SimSci-Esscor solutions throughout the entire refining value chain. I truly feel that the technology from Spiral Software will enhance out customers experience as we move forward, integrating Spiral technology with SimSci-Esscor simulation software.
Just think - instead of starting with generic crude slate in PRO/II when you are debottlenecking refinery processes if you can start with the exact crude slate that the plant will be processing - how much more accurate will your answers be?
Interesting insights on Invensys and on the Automation industry from Invensys Operations Management President & CEO Michael Caliel and Systems Business President Gary Freburger. What do you think led to the rebound of the Automation Industry?
I feel confident in commenting on the Spiral Software acquisition. I really think this helps extend the SimSci-Esscor solutions throughout the entire refining value chain. I truly feel that the technology from Spiral Software will enhance out customers experience as we move forward, integrating Spiral technology with SimSci-Esscor simulation software.
Just think - instead of starting with generic crude slate in PRO/II when you are debottlenecking refinery processes if you can start with the exact crude slate that the plant will be processing - how much more accurate will your answers be?
Tuesday, 7 May 2013
The declining global economy and increasing regional regulations are taking their toll on refineries. These two issues prove that there is no better time to improve performance and profitability. Invensys has developed products that find any chance of profitability anywhere in the refinery.
SimSci-Esscor’s ROMeo Online Performance Suite solution provides optimization features for the entire refinery. ROMeo Utilities Optimization optimizes the way plants supply energy from its utilities. It will significantly reduce energy cost, which is very often a refinery’s greatest expense. ROMeo Process Optimization allows for a change in operation based on current economic and process conditions. SimSci-Esscor’s ROMeo solutions are used by some of the world’s leading refineries including Exxon Mobil, Shell, and BASF. Invensys Yield Accounting Solution provides refineries with more accurate data and more reliable tracking. In doing this, it provides less room for error which also optimizes performance. Planning & Off-sites Integration with ROMeo is another Invensys optimization solution. Integrating ROMeo with planning LP technology and off-sites management applications allows for much less manual work.
Join the world’s leading refineries and start optimizing performance in your workplace by choosing Invensys optimization solutions.
About the ROMeo Online Performance Suite: Invensys offers numerous performance enhancing solutions as part of the Online Performance Suite (OPS) that allow customers to remain competitive in tough economic times. The ability to view what is happening at your plant now and make appropriate and timely business decisions is critical to optimal operation. ROMeo’s online rigorous modeling and equation-based real time optimization capabilities provide improved data that will assist refiners in dealing with changing market pressures, product values, energy costs and equipment performance. This suite provides assistance with energy management, non linear, olefins, and wellfield optimization.
Technical Support: As always, feel free to reach out to your local technical support team for more information.
Here is a sample of the white paper:
Introduction
The world’s energy industry has followed the availability of easily attainable and economically feasible supplies for the oil segment that has moved towards heavier feedstock. The earlier extraction, accessibility, transport and processing centered around lighter crudes with characteristics that could be uniformly and reliably processed in refineries using a stable of proven technologies is no longer possible. As those lighter crude supplies have become exhausted or more difficult to obtain, demand from emerging nations such as India and China has strained the supply chain. Because of their explosive growth, these and other countries experiencing economic growth are usurping an increasing amount of the existing supply of conventional crudes while investing in supplies of heavier sources as well. Heavier crudes have unique physical properties that often present costly refining challenges. Efficient processing solutions require a thorough understanding of the crude’s characteristics and operating behavior. Those involved in heavy or extra heavy oil refining must decide what they have and how they should process it.
Introduction
The world’s energy industry has followed the availability of easily attainable and economically feasible supplies for the oil segment that has moved towards heavier feedstock. The earlier extraction, accessibility, transport and processing centered around lighter crudes with characteristics that could be uniformly and reliably processed in refineries using a stable of proven technologies is no longer possible. As those lighter crude supplies have become exhausted or more difficult to obtain, demand from emerging nations such as India and China has strained the supply chain. Because of their explosive growth, these and other countries experiencing economic growth are usurping an increasing amount of the existing supply of conventional crudes while investing in supplies of heavier sources as well. Heavier crudes have unique physical properties that often present costly refining challenges. Efficient processing solutions require a thorough understanding of the crude’s characteristics and operating behavior. Those involved in heavy or extra heavy oil refining must decide what they have and how they should process it.
Download and read the full white paper here: Whitepaper on Processing Heavy and Extra Heavy Oils
How are Column Pumparound duties determined in PRO/II?
Pumparound duties are fixed implicitly when the user fixes the rate and the return temperature or DT.
Pumparound duties are fixed implicitly when the user fixes the rate and the return temperature or DT.
About PRO/II: PRO/II is the major product in the Process Engineering Suite (PES). This process simulation software optimizes plant performance by improving process design, operational analysis, and performing engineering studies. It is designed to perform rigorous heat and material balance calculations for a wide range of chemical processes. PRO/II allows users to evaluate the use of heat integration with case studies, rigorously evaluate process improvements with the help of a process flow diagram (PFD), or model crude distillation units. PRO/II offers a wide variety of thermodynamic models to virtually every industry and is incredibly cost effective, decreasing both capital and operating costs.
Technical Support: As always, feel free to reach out to your local technical support team for more information.
Wednesday, 1 May 2013
ACA.HF is an Invensys Operations Management solution that received a breakthrough product of the year award from Process Magazine. This solution tests the level of hydrofluoric acid (HF) in a refinery.
For a number of years, the only way to learn the level of HF was manual sampling. Knowing the level of HF is essential for refinery operation, for both profitability and safety. However, it can also be incredibly dangerous. In 2000, FTNIR developed a solution to eliminate manual sampling, but it is very expensive. ACA.HF provides the same results but at less than half the cost of FTNIR.
For a number of years, the only way to learn the level of HF was manual sampling. Knowing the level of HF is essential for refinery operation, for both profitability and safety. However, it can also be incredibly dangerous. In 2000, FTNIR developed a solution to eliminate manual sampling, but it is very expensive. ACA.HF provides the same results but at less than half the cost of FTNIR.
For more information on ACA.HF, check out the product page here.
Avantis, SimSci-Esscor, Wonderware User Group Meetings - Oct 15-17 - Save the Date!
Will you be there? I hope to see you there!
Interested in presenting - let me know!
Interested in a specific topic - let me know!
We will be working on an agenda in the coming months, so now if a great chance to provide feedback on what you want to see.
Tuesday, 30 April 2013
We think that promoting the software tools that professionals use in the workplace among the colleges and universities that are teaching our future workforce is important. In order to be successful professionals, students should prepare in school on the same tools that they will be using as professionals.
A lot of companies do a great job of promoting their professional tools within academic instiuitions, and Invensys Operations Management is no exception. The SimSci-Esscor and Wonderware brands have an academic program that aims to leverage the global academic brain trust to advance the engineering professions. Let us know if you are an academic institution and we can help you get SimSci-Esscor or Wonderware tools into your school!
The last time we posted about the academic program, we were seeking a leader for the program. Well, that position as been filled and the new manager is hitting the ground running. You will be seeing more and more from Invensys on our academic program.
About the Academic Program: The Invensys Academic Program provides academic licenses to engineering students at universities across the globe for its SimSci and Wonderware products. This program is designed to jumpstart the future careers of these students. This University Partner Program (UPP) provides students with access and insight to the latest technology in design, dynamic simulation, and optimization. Invensys employees look forward to sharing their expertise with aspiring engineers.
Technical Support: As always, feel free to reach out to your local technical support team for more information.
A lot of companies do a great job of promoting their professional tools within academic instiuitions, and Invensys Operations Management is no exception. The SimSci-Esscor and Wonderware brands have an academic program that aims to leverage the global academic brain trust to advance the engineering professions. Let us know if you are an academic institution and we can help you get SimSci-Esscor or Wonderware tools into your school!
The last time we posted about the academic program, we were seeking a leader for the program. Well, that position as been filled and the new manager is hitting the ground running. You will be seeing more and more from Invensys on our academic program.
About the Academic Program: The Invensys Academic Program provides academic licenses to engineering students at universities across the globe for its SimSci and Wonderware products. This program is designed to jumpstart the future careers of these students. This University Partner Program (UPP) provides students with access and insight to the latest technology in design, dynamic simulation, and optimization. Invensys employees look forward to sharing their expertise with aspiring engineers.
Technical Support: As always, feel free to reach out to your local technical support team for more information.
Monday, 29 April 2013
What is D86 cracking in PRO/II?
This is a method from the old API Data Book which is kept in PRO/II for consistency with old flowsheets. The D86 temperatures include a correction factor for cracking that occurs during the laboratory test.
About PRO/II: One of the refining industry’s leading simulation solutions, PRO/II software is a steady-state simulation tool for process design, revamp and operational analysis. It is backed by more than 45 years of research and development and includes proprietary correlations to model heavy oils.
This is a method from the old API Data Book which is kept in PRO/II for consistency with old flowsheets. The D86 temperatures include a correction factor for cracking that occurs during the laboratory test.
About PRO/II: One of the refining industry’s leading simulation solutions, PRO/II software is a steady-state simulation tool for process design, revamp and operational analysis. It is backed by more than 45 years of research and development and includes proprietary correlations to model heavy oils.
About PRO/II: PRO/II is the major product in the Process Engineering Suite (PES). This process simulation software optimizes plant performance by improving process design, operational analysis, and performing engineering studies. It is designed to perform rigorous heat and material balance calculations for a wide range of chemical processes. PRO/II allows users to evaluate the use of heat integration with case studies, rigorously evaluate process improvements with the help of a process flow diagram (PFD), or model crude distillation units. PRO/II offers a wide variety of thermodynamic models to virtually every industry and is incredibly cost effective, decreasing both capital and operating costs.
Technical Support: As always, feel free to reach out to your local technical support team for more information.
Saturday, 27 April 2013
The SmartFire solution from Invensys is based on an extension to the Connoisseur Advanced Process Control (APC) software. This solution is a boiler optimization application that offers multivariable model predictive control and neural networks. It is often applied to bias furnace air flow distribution and address O2 imbalances and regions of high CO. The original application needed some adjustments in order for it to achieve its fullest potential. It was decided that improvements could be made if this offering could automatically determine more optimum air/fuel settings at individual dampers.
SmartFire completes the boiler optimization offering from Invensys by compensating for a phenomenon in coal fired boilers known as roping. Roping occurs when pulverized coal is fed to a utility boiler causing disruption to the distribution of coal flow to the coal pipes that supply the burners. This imbalanced distribution causes some regions of the furnace to have more fuel and others to have less fuel.
SmartFire continuously tests the APC system and adapts the models to capture the characteristics of shifting relationships. Operators do not interfere with this process, which optimizes work performance and greatly enhances the bottom line. This solution offers significant improvements in boiler efficiency. After testing the system, there were estimated benefits of $78,000 a year - in addition to the benefits of APC which typically exceed $500,000. This shortens the payback period and is truly unique to the Invensys APC offering.
SmartFire completes the boiler optimization offering from Invensys by compensating for a phenomenon in coal fired boilers known as roping. Roping occurs when pulverized coal is fed to a utility boiler causing disruption to the distribution of coal flow to the coal pipes that supply the burners. This imbalanced distribution causes some regions of the furnace to have more fuel and others to have less fuel.
SmartFire continuously tests the APC system and adapts the models to capture the characteristics of shifting relationships. Operators do not interfere with this process, which optimizes work performance and greatly enhances the bottom line. This solution offers significant improvements in boiler efficiency. After testing the system, there were estimated benefits of $78,000 a year - in addition to the benefits of APC which typically exceed $500,000. This shortens the payback period and is truly unique to the Invensys APC offering.
About Connoisseur: Connoisseur is advanced process control (APC) software developed by Invensys to improve process profitability and control. The quality improvements that result from using Connoisseur model-based predictive control software are also met with considerable economic improvements. RBF neural nets, a key feature of this solution can be mixed with step test derived models. The standard deviation of key product parameters from target specification is significantly reduced, leading to increased throughput and significantly reduced material and/or energy consumption, providing a total payback in three to six months or less. Applications of Connoisseur include mining, power, chemicals and refining, among others.
Technical Support: As always, feel free to reach out to your local technical support team for more information.
In PRO/II, does water have to be present to use HYDRATES?
Interestingly enough, water does not have to be present in simulation to perform the hydrate analysis.
Interestingly enough, water does not have to be present in simulation to perform the hydrate analysis.
About PRO/II: PRO/II is the major product in the Process Engineering Suite (PES). This process simulation software optimizes plant performance by improving process design, operational analysis, and performing engineering studies. It is designed to perform rigorous heat and material balance calculations for a wide range of chemical processes. PRO/II allows users to evaluate the use of heat integration with case studies, rigorously evaluate process improvements with the help of a process flow diagram (PFD), or model crude distillation units. PRO/II offers a wide variety of thermodynamic models to virtually every industry and is incredibly cost effective, decreasing both capital and operating costs.
Technical Support: As always, feel free to reach out to your local technical support team for more information.
Friday, 26 April 2013
In PRO/II, what conditions are density and specific gravity reported in the stream summary?
Density and specific gravity are reported at:
- SPGR @ 60 F/1 atm
- density @ flowing conditions
Density and specific gravity are reported at:
- SPGR @ 60 F/1 atm
- density @ flowing conditions
About PRO/II: PRO/II is the major product in the Process Engineering Suite (PES). This process simulation software optimizes plant performance by improving process design, operational analysis, and performing engineering studies. It is designed to perform rigorous heat and material balance calculations for a wide range of chemical processes. PRO/II allows users to evaluate the use of heat integration with case studies, rigorously evaluate process improvements with the help of a process flow diagram (PFD), or model crude distillation units. PRO/II offers a wide variety of thermodynamic models to virtually every industry and is incredibly cost effective, decreasing both capital and operating costs.
Technical Support: As always, feel free to reach out to your local technical support team for more information.
Thursday, 25 April 2013
What are the differences between the RVP calculation methods?
There are six Reid Vapor Pressure (RVP) calculation methods in PRO/II:
APINAPHTHA - The RVP is obtained from a nomograph in the API Databook (Figure 5B1.1, pg. 5-29) which relates the RVP to the slope of the ASTM D86 distillation curve at the 10% volume point and the temperature. This method is useful for gasoline mixtures.
APICRUDE - For this method the TVP is determined first, and then the RVP is obtained from a nomograph in the API databook (Fig. 5B1.2, pg.5-31) which relates the RVP to the temperature and the TVP. This method is useful for crude oils.
P323 - This is the method used in PROCESS. It is obsolete now, but is still included in PRO/II for comparing results with PROCESS. Dry air is added to the liquid mixture, sealed, and allowed to equilibrate at a temperature of 100 F. The measured pressure of the sample is then subtracted from the atmospheric pressure to obtain the RVP in psi. PRO/II rigorously simulates all steps in this method.
D323 (wet method) - This 1982 ASTM method is again rigorously simulated by PRO/II. This method mixes the liquid hydrocarbon stream with dry air and liquid water. The resultant mixture is sealed, allowed to reach equilibrium, and the pressure in the chamber measured at 100 F. The RVP in units of psi is obtained by subtracting the atmospheric pressure from the measured pressure. (See article #1875 in the NATS article database.)
D4953 (dry method) - This 1991 ASTM method is similar to the D323 method, except that no liquid water is added to the mixture. However, the air sample added is assumed to be saturated with water vapor. This method is useful for gasolines containing oxygenates such as alcohols, which separate out with water.
D5191 - This is based on the 1991 ASTM-D5191 method. Sample is evacuated. Applicable for volatile liquid petroleum products.
There are six Reid Vapor Pressure (RVP) calculation methods in PRO/II:
APINAPHTHA - The RVP is obtained from a nomograph in the API Databook (Figure 5B1.1, pg. 5-29) which relates the RVP to the slope of the ASTM D86 distillation curve at the 10% volume point and the temperature. This method is useful for gasoline mixtures.
APICRUDE - For this method the TVP is determined first, and then the RVP is obtained from a nomograph in the API databook (Fig. 5B1.2, pg.5-31) which relates the RVP to the temperature and the TVP. This method is useful for crude oils.
P323 - This is the method used in PROCESS. It is obsolete now, but is still included in PRO/II for comparing results with PROCESS. Dry air is added to the liquid mixture, sealed, and allowed to equilibrate at a temperature of 100 F. The measured pressure of the sample is then subtracted from the atmospheric pressure to obtain the RVP in psi. PRO/II rigorously simulates all steps in this method.
D323 (wet method) - This 1982 ASTM method is again rigorously simulated by PRO/II. This method mixes the liquid hydrocarbon stream with dry air and liquid water. The resultant mixture is sealed, allowed to reach equilibrium, and the pressure in the chamber measured at 100 F. The RVP in units of psi is obtained by subtracting the atmospheric pressure from the measured pressure. (See article #1875 in the NATS article database.)
D4953 (dry method) - This 1991 ASTM method is similar to the D323 method, except that no liquid water is added to the mixture. However, the air sample added is assumed to be saturated with water vapor. This method is useful for gasolines containing oxygenates such as alcohols, which separate out with water.
D5191 - This is based on the 1991 ASTM-D5191 method. Sample is evacuated. Applicable for volatile liquid petroleum products.
About PRO/II: PRO/II is the major product in the Process Engineering Suite (PES). This process simulation software optimizes plant performance by improving process design, operational analysis, and performing engineering studies. It is designed to perform rigorous heat and material balance calculations for a wide range of chemical processes. PRO/II allows users to evaluate the use of heat integration with case studies, rigorously evaluate process improvements with the help of a process flow diagram (PFD), or model crude distillation units. PRO/II offers a wide variety of thermodynamic models to virtually every industry and is incredibly cost effective, decreasing both capital and operating costs.
Technical Support: As always, feel free to reach out to your local technical support team for more information.
How do I configured a new file to open when PRO/II starts?
With this option every time PRO/II is launched it will open a new file, otherwise by default PRO/II won’t open a new file on launch.
1. On menu bar go to Options > New File on Start up
With this option every time PRO/II is launched it will open a new file, otherwise by default PRO/II won’t open a new file on launch.
1. On menu bar go to Options > New File on Start up
About PRO/II: PRO/II is the major product in the Process Engineering Suite (PES). This process simulation software optimizes plant performance by improving process design, operational analysis, and performing engineering studies. It is designed to perform rigorous heat and material balance calculations for a wide range of chemical processes. PRO/II allows users to evaluate the use of heat integration with case studies, rigorously evaluate process improvements with the help of a process flow diagram (PFD), or model crude distillation units. PRO/II offers a wide variety of thermodynamic models to virtually every industry and is incredibly cost effective, decreasing both capital and operating costs.
Technical Support: As always, feel free to reach out to your local technical support team for more information.
Tuesday, 23 April 2013
How can the STREAM CALCULATOR in PRO/II be set up to do various tasks?
The STREAM CALCULATION can be set up to do the following:
The STREAM CALCULATION can be set up to do the following:
- Example of stream synthesis:
STCALC UID=SYN
PROD M=NEW, TEMP=100, PRES=14.7
RPROD 1,42.1 / 2,50.0 / 3,7.9 $ Set component rates
- Example of stream blending:
STCALC UID=BLND
FEED ST1,0.3/ST2,0.5/ST3,0.2 $ Scale feed streams
PROD M=OUTLET
FPROD 1,10,1.0 $ All components in product
- Example of stream splitting:
STCALC UID=SPLT
FEED INLET
OVHD V=OOUT
BTMS L=BOUT
FOVHD 1,5,1.0 $ Components 1-5 go overhead
FBTMS 6,10,1.0 $ Components 6-10 go to bottoms
About PRO/II: PRO/II is the major product in the Process Engineering Suite (PES). This process simulation software optimizes plant performance by improving process design, operational analysis, and performing engineering studies. It is designed to perform rigorous heat and material balance calculations for a wide range of chemical processes. PRO/II allows users to evaluate the use of heat integration with case studies, rigorously evaluate process improvements with the help of a process flow diagram (PFD), or model crude distillation units. PRO/II offers a wide variety of thermodynamic models to virtually every industry and is incredibly cost effective, decreasing both capital and operating costs.
Technical Support: As always, feel free to reach out to your local technical support team for more information.
Subscribe to:
Posts (Atom)
