臧小亚,梁德青,吴能友

• 1:中科院天然气水合物重点实验室中科院可再生能源重点实验室
• 2:中国科学院广州能源研究所
• 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
• 4:中国地质调查局青岛海洋地质研究所

摘要(Abstract)：

水合物法气体分离技术是一种新型的CO_2分离方法,不同的分离条件对CO_2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CO_2/CH_4混合气水合物的相平衡条件,促进CO_2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3.2 MPa下,不同过冷度及气水比例的条件对CO_2/CH_4混合气水合物的生成过程及CO_2的分离效果的影响规律。实验结果表明,当压力为3.2 MPa时,气水比越小,CO_2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CO_2分离效果最好,而且CO_2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6 K时,反应结束后气相中CH_4的摩尔比例为81.59%,CO_2的摩尔比例为18.41%,CO_2气体分离系数为4.43,CO_2分离效果最好。

关键词(KeyWords)： 水合物;CO2分离;TBAB;半笼型;混合气

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51676197);; 国家海洋地质专项项目(GHZ2012006003);; 中国科学院知识创新工程重要方向项目(KGZD-EW-301);; 国家高技术研究发展计划项目(2012AA061403-03)

作者(Author): 臧小亚,梁德青,吴能友

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