How to set the difference and sum of two or more components to a certain set value in HYSYS
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In HYSYS’s column calculations, how to set the sum, difference, product, and quotient of the two components in the material at the top or bottom of the column to equal a certain specified value. For example, if the raw materials consist of C1–C8 components and a distillation column is used, it is necessary to ensure that the molar fraction of C7+C8 at the column top does not exceed 0.05%. How should this be set? Thank you!
Simply select the mole fraction, and from the dropdown menu for components below, choose C7 and C8. That’s it.
I’m wondering if there’s an operator similar to those in PRO/II (+, -, *, /); the component ratio has already been determined. Thank you so much for your enthusiastic help!