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.
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