ProII “Make a Little Progress Every Day” (2017.08.27)

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This post was last edited by *amingteda on 2017-8-27 at 22:01. Dear marine friends, in order to help everyone learn the *ProII process simulation software better – so that beginners can gain knowledge and experienced users can refresh their skills – we are launching a series of lessons on the basics of ProII titled “Make Progress Every Day”. Since I use Aspen Plus/Hysys more frequently in my daily work, I have not studied ProII software systematically; therefore, the knowledge I offer might be quite basic. I hope fellow users will provide valuable suggestions and opinions, and actively participate in the discussions. Multiple-choice question: 7. Which of the following statements about the simplified distillation FCG method is correct? A. The Fenske-Underwood-Gilliland method is quite accurate for ideal mixtures with a narrow boiling range. B. For non-ideal mixtures, especially when azoles are formed, this method may be inaccurate. C. For raw materials with large differences in boiling points, this method may be inaccurate. D. Before applying this method, the gas-liquid equilibrium relationship of the feed solution should be carefully checked to determine the values of its gas and liquid phase activity coefficients, as well as to assess whether an azeotrope may form within the possible composition ranges. Answer: ABCD