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P-图理论优化炼厂气轻烃回收过程工艺参数

Release Time:2019-11-07  Hits:

Indexed by: Journal Article

Date of Publication: 2018-01-28

Journal: 计算机与应用化学

Included Journals: PKU、CSCD

Issue: 01

Page Number: 18-26

ISSN: 1001-4160

Key Words: P-图理论;参数优化;炼厂气;轻烃回收;膜分离

Abstract: 本研究将P-图理论应用到炼厂气轻烃回收过程工艺参数的优化中。首先,基于P-图理论和炼厂气轻烃回收工艺流程,在P-graph Studio中构建该过程的P-图超结构,以总成本减去产品总价为目标函数,构建P-图模型和逻辑约束,选用ABB算法进行求解。主要考察了膜面积和两个精馏塔塔板数在合理范围内同时变化时,对目标函数的影响。借助P-图理论的组合特性,减少了目标函数计算时的重复性工作,并利用P-图理论的逻辑约束和ABB算法,从45个组合方案中优化得到最优方案,并得到最优方案对应的工艺参数值。

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