沸石
变压吸附
序列二次规划
离散化
吸附
二氧化碳
材料科学
化学
数学
数学优化
有机化学
数学分析
催化作用
二次规划
作者
Daeho Ko,Ranjani Siriwardane,Lorenz T. Biegler
摘要
A pressure-swing adsorption process, which uses zeolite 13X as an adsorbent to recover and sequester carbon dioxide from mixture gas (nitrogen and carbon dioxide), is investigated through dynamic simulation and optimization. The purpose of this paper is to improve the purity of each component by finding optimal values of decision variables with a given power constraint. Langmuir isotherm parameters are calculated from experimental data of zeolite 13X and a general mathematical model consisting of a set of partial differential and algebraic equations and solved in gPROMS. The method of centered finite differences is adopted for the discretization of the spatial domains, and a reduced space SQP method is used for the optimization. As a result, the optimal conditions at cyclic steady state are obtained.
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