文献类型：期刊文献

英文题名：Simulation of steady distillation process accompanied with multiple chemical equilibrium reactions basing on transformed variables

作者：Qi, ZW; Ye, YM; Zhang, RS; Yu, ZH

机构：[1]E China Univ Sci & Technol, Dept Chem Engn, Shanghai 200237, Peoples R China

年份：2000

卷号：180

起止页码：61

外文期刊名：CHEMICAL ENGINEERING COMMUNICATIONS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000088538200004)】；

语种：英文

外文关键词：reactive distillation; chemical equilibrium reaction; transformed variables; modified Newton-Raphson method; relaxation method

摘要：The equations describing the steady state operation of distillation column with simultaneous equilibrium chemical reactions have been transformed into a new set of MESH equations by introducing transformed composition, flow rate and enthalpy variables. The new set of equations are similar to equations describing traditional non-reactive distillation, and it is general when one or several reactions occur and inert components are present. An algorithm combining relaxation method and modified Newton-Raphson method is proposed to solve the new equations, the relaxation method is used to estimate initial values, while the modified Newton-Raphson method is used to set solution. The reactive distillation processes of MTBE synthesis with n-butane and the separation of meta- and para-xylene are simulated as numerical examples.