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TBAB半笼型水合物法分离CO2/CH4混合气的过程研究
Alternative TitleTBAB Semi-Clathrate Hydrate Formation and its Application in CO2Separation from CO2/CH4Mixture Gases
臧小亚1,2,3; 梁德青1,2,3; 吴能友4
2017-08
Source Publication高校化学工程学报
ISSN1003-9015
Volume31Issue:4Pages:802-809
Abstract水合物法气体分离技术是一种新型的CO2分离方法,不同的分离条件对CO2气体分离的效果影响显著。四丁基溴化铵(TBAB)的添加能显著改善CO2/CH4混合气水合物的相平衡条件,促进CO2水合物的生成。作者主要研究在质量浓度为40%的TBAB水溶液体系中,压力为3.2MPa下,不同过冷度及气水比例的条件对CO2/CH4混合气水合物的生成过程及CO2的分离效果的影响规律。实验结果表明,当压力为3.2MPa时,气水比越小,CO2分离效果越好。同时,存在最佳的过冷度使得反应过程中气体消耗量最大以及CO2分离效果最好,而且CO2分离效果并非与过冷度完全成正比。当气水比为0.54,过冷度为6K时,反应结束后气相中CH4的摩尔比例为81.59%,CO2的摩尔比例为18.41%,CO2气体分离系数为4.43,CO2分离效果最好。
Other AbstractHydrate based gas separation(HBGS)technology is a relatively new approach for CO2removal.Different operation conditions can significantly influence CO2separation.Addition of tetrabutylammoniumbromide(TBAB)can reduce the hydrate phase equilibrium requirements of CO2/CH4mixture gases andenhance CO2hydrate formation.Gas hydrate formation from a CO2/CH4mixture in distilled water with40%mass fraction of TBAB was examined at3.2MPa and different temperatures.The results indicate that CO2separation factor increases with the decrease of gas/liquid ratio under same pressure and temperature.Meanwhile,CO2separation factor is not fully proportio(mol)at3.2MPa and286K(supercooling degree is6K)with a gas/liquid volume ratio(Vg/Vl)of0.54.CO2gas separation factor is4.43under this condition.
Keyword水合物 CO2分离 TBAB 半笼型 混合气 hydrate CO2 separation tetrabutylammonium bromide (TBAB) semi-clathrate mixture gas
DOI10.3969/j.issn.1003-9015.2017.04.007
Language中文
CSCD IDCSCD:6056514
Citation statistics
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/16530
Collection中国科学院广州能源研究所
Corresponding Author梁德青
Affiliation1.中国科学院天然气水合物重点实验室,中国科学院可再生能源重点实验室,广东广州510640;
2.中国科学院广州能源研究所,广东广州510640;
3.广东省新能源和可再生能源研究开发与应用重点实验室,广东广州510640;
4.中国地质调查局青岛海洋地质研究所,山东青岛266000
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
臧小亚,梁德青,吴能友. TBAB半笼型水合物法分离CO2/CH4混合气的过程研究[J]. 高校化学工程学报,2017,31(4):802-809.
APA 臧小亚,梁德青,&吴能友.(2017).TBAB半笼型水合物法分离CO2/CH4混合气的过程研究.高校化学工程学报,31(4),802-809.
MLA 臧小亚,et al."TBAB半笼型水合物法分离CO2/CH4混合气的过程研究".高校化学工程学报 31.4(2017):802-809.
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