化工学报2018，Vol.69Issue(3)：943-952,10.DOI:10.11949/j.issn.0438-1157.20171127
面向CO2分离的膜-深冷耦合过程优化
Process optimization of CO2membrane and cryogenic hybrid separation
摘要
Abstract
Separation and purification of carbon dioxide is current research hotspot. With increasing needs for environmental protection, traditional single separation techniques are difficult to meet these discharge specifications. Integration of multiple separation methods has gradually gained research attention. Separation and recovery of carbon dioxide in the integrated gasification combined cycle (IGCC) process was studied by process simulation and polynomial state equations were obtained for such system. Furthermore, a mathematical superstructure model of hybrid membrane - cryogenic flash distillation was established. Optimal separation sequence was found by targeting minimal annual cost at pre-set lower specification of product purity and recovery. The optimized process show excellent separating performance of membrane after flash configuration and multistage membrane structure. Compared to control process, optimized process not only guarantees product recovery and purity but also decreases total annual cost by almost 27%.关键词
二氧化碳/回收/膜/耦合/分离序列优化/超结构Key words
carbon dioxide/recovery/membrane/hybrid/optimization of separation sequence/superstructure分类
化学化工引用本文复制引用
胡永欣,廖祖维,王靖岱,董宏光,阳永荣..面向CO2分离的膜-深冷耦合过程优化[J].化工学报,2018,69(3):943-952,10.基金项目
国家自然科学基金项目(91434205,61590925) （91434205,61590925）
国家杰出青年科学基金项目(21525627).supported by the National Natural Science Foundation of China(91434205,61590925)and the National Science Fund for Distinguished Young Scholars(21525627). （21525627）
