期刊
COMPUTERS & CHEMICAL ENGINEERING
卷 117, 期 -, 页码 11-24出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.compchemeng.2018.05.013
关键词
Simulation; Process configuration; Membrane stage; Treatment cost; CO2 removal
A key tool called MemCal is developed to support the simulation of membrane-based gas separation processes using Aspen HYSYS. By integrating MemCal with the simulator, users can simulate complex multi-component/multi-stage processes, perform sensitivity studies, and utilize the default HYSYS features to cost and optimize processes. Industrially, MemCal can be used to simulate the separation of air, biogas, natural gas, olefins-paraffins and other gases. The CO2/CH4 binary mixture separation was demonstrated in this manuscript as the first and the simplest application of MemCal. The simulation of various multi-stage processes suggested that the treatment cost can be dropped by optimizing the separation load distribution among the stages. For CO2/CH4 separation, the simulations suggested that the optimized two-stage process plus recycle resulted in the least separation cost. The installation of a third stage for boosting hydrocarbons recovery was found unjustified when membranes equivalent to or better than cellulose acetate are adopted. (C) 2018 Elsevier Ltd. All rights reserved.
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