季铵盐类化合物水合分离烟道气中CO2的实验研究

doi:10.16085/j.issn.1000-6613.2016.s2.070

化工进展 ›› 2016, Vol. 35 ›› Issue (S2): 396-400.DOI: 10.16085/j.issn.1000-6613.2016.s2.070

季铵盐类化合物水合分离烟道气中CO₂的实验研究

赵光华

长城钻探工程技术研究院, 辽宁盘锦 124010

收稿日期:2016-05-09 修回日期:2016-09-01 出版日期:2016-12-31 发布日期:2016-12-22
通讯作者: 赵光华(1986-),男,硕士,工程师,研究方向为水合物法分离气体混合物、气体采油技术。E-mail:zhaoguanghua-1986@163.com。
基金资助:
国家重点基础研究发展计划项目（2012CB215005）。

Experimental studies on hydrate separation carbon dioxide from flue gas using quaternary ammonium compounds

ZHAO Guanghua

Engineering and Technology Research Institute of GWDC, Panjin 124010, Liaoning, China

Received:2016-05-09 Revised:2016-09-01 Online:2016-12-31 Published:2016-12-22

摘要/Abstract

摘要： 利用季铵盐类化合物[四丁基溴化铵（TBAB）、四丁基氟化铵（TBAF）]作为热力学促进剂对CO₂（9.06%，摩尔分数）+N₂（90.94%，摩尔分数）混合气体进行水合分离实验。结果表明：在279.15 K、2.0 MPa下，0.293% TBAF溶液中，CO₂能够在水合物相中富集到37.73%（摩尔分数），分离因子13.23，回收率28.44%。TBAF对CO₂的富集程度和分离效果要优于TBAB。同时将实验结果与文献中季铵盐类化合物以及同样实验条件下四氢呋喃（THF）水合分离实验结果进行比较，发现本实验的分离效果要低于文献中CO₂-N₂-TBAB体系，分离因子高于同样实验条件下CO₂-N₂-THF体系，但回收率低于CO₂-N₂-THF体系。

关键词: 水合物, 烟道气, 分离, 二氧化碳

Abstract: Quaternary ammonium compounds[tetra-n-butyl ammonium bromide(TBAB)、tetra-n-butyl ammonium fluoride(TBAF)] were used as thermodynamic promoters to separate CO₂(9.06%)+N₂(90.94%) mixture gases via forming hydrate.The results show that CO₂ can be enriched to 37.73% in hydrate phase at 279.15 K,2.0 MPa in 0.293% TBAF aqueous solution.The CO₂ separation factor is 13.23 and recovery is 28.44%.The enrichment degree and separation efficiency of CO₂ in TBAF aqueous solution is better than that in TBAB aqueous solution.The results were compared with hydrate separation experiment results of quaternary ammonium compounds from literature and the same experimental conditions in the presence of THF.The results demonstrate that the separation efficiency in this experiment is lower than that of CO₂-N₂-TBAB system from literature.The separation factor is higher than that of CO₂-N₂-THF system in the same experimental conditions.But the CO₂ recovery is lower than that of CO₂-N₂-THF system.

Key words: hydrate, flue gas, separation, carbon dioxide

中图分类号:

TE65

赵光华. 季铵盐类化合物水合分离烟道气中CO₂的实验研究[J]. 化工进展, 2016, 35(S2): 396-400.

ZHAO Guanghua. Experimental studies on hydrate separation carbon dioxide from flue gas using quaternary ammonium compounds[J]. Chemical Industry and Engineering Progree, 2016, 35(S2): 396-400.

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季铵盐类化合物水合分离烟道气中CO₂的实验研究

Experimental studies on hydrate separation carbon dioxide from flue gas using quaternary ammonium compounds

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