彭宝仔,戈三峰,孙长宇,杨兰英,张倩,陈光进

• 1:中国石油大学(北京)重质油国家重点实验室
• 2:济宁迪尔安装有限公司

摘要(Abstract)：

气体在乳液中的溶解度是决定水合物生成速率快慢的重要因素。为此结合排水法并采用自制加工的高压反应釜测定了在温度范围274.2~282.2 K和压力范围0.30~6.40 MPa下不同Span 20(失水山梨醇单月桂酸酯,简称Span 20)浓度及含水率时甲烷在柴油+水乳液体系中的溶解度,分别考察了温度、压力、含水率及Span 20浓度对溶解度的影响。实验结果表明,当含水率为30%(V/V)及Span 20浓度为3.0%(wt)时,甲烷在乳液中的溶解度随压力的增加几乎呈线性增加,在实验范围内溶解度最高达到0.0784(mol·mol-1),而温度对溶解度的影响相对较小;在近水合物生成区域,含水率的增加能显著降低甲烷在乳液体系中的溶解度,而在相同的温度、压力及含水率条件下,溶解度却随Span 20浓度的增加而增加,表明Span 20能促进甲烷在乳液中的溶解。

关键词(KeyWords)： 甲烷;乳液;溶解度;Span20;水合物

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(20925623,21076225)

作者(Author): 彭宝仔,戈三峰,孙长宇,杨兰英,张倩,陈光进

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