Xinjiang Oil & Gas ›› 2021, Vol. 17 ›› Issue (4): 55-61.

• OIL AND GAS DEVELOPMENT • Previous Articles     Next Articles

Research on the Preparation of Civil Natural Gas from Oil Shale Retorting Gas by the Hydration Process

LIANGShuang1，GAOFangxing1，YUEGang2，LIUZengqi1，SUNQiang1，WANGYiwei1，LIUAixian3，GUOXuqiang3   

  1. 1. China University of Petroleum（Beijing），Changping 102249，Beijing，China； 2. Sinopec Ningbo Engineering Co.，Ltd，Ningbo315000，Zhejiang，China； 3. Karamay Campus，China University of Petroleum（Beijing），Karamay 834000，Xinjiang，China
  • Online:2021-12-25 Published:2021-12-25

水合物法油页岩干馏气制备民用天然气研究

梁爽1，高昉星1，岳刚2，刘曾奇1，孙强1，王逸伟1，刘爱贤3，郭绪强3
  

  1. 1.中国石油大学（北京），北京昌平 102249； 2.中石化宁波工程有限公司，浙江宁波 315000； 3.中国石油大学（北京）克拉玛依校区，新疆克拉玛依 834000
  • 通讯作者: 郭绪强（1963-），1999年毕业于中国石油大学（北京）化学工程与技术专业，教授、博士生导师，现从事石油天然气加工、气体水合物研究。 （Tel）010-09906633300（E-mail）guoxq@cup.edu.cn
  • 作者简介:梁爽（1995-），中国石油大学（北京）化学工程与技术专业在读博士研究生，现从事气体水合物研究。 （Tel ）15510223012 （E-mail）2019310225@student.cup.edu.cn

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Abstract: Methane in retorting gas of oil shale is recovered and concentrated via the hydrate formation-based gas separation process to produce natural gas with the concentration satisfying the civil use standard. The optimum operating conditions of hydrate separation have been determined in the laboratory by the isothermal pressure search method using a self-built hydrate phase equilibrium experimental measurement system. Multi-stage hydrate separation experiments have been conducted under the found optimum conditions. The results show that compared with the traditional practice using a high dosage（10 wt%）of the accelerant tetrabutylammonium bromide（TBAB），a low concentration（2 wt%）of tetrahydrofuran（THF）is enough to significantly promote hydrate formation of oil shale retorting gas. The CH 4 content is improved from 15.2% to above 92% just by four-stage hydrate separation. The research results have provided the theoretical basis for the hydrate formation-based recovery of oil shale retorting gas.

Key words: Oil shale retorting gas, hydrate, THF, TBAB

摘要： 利用水合物气体分离技术回收和提浓油页岩干馏气中的甲烷，使其达到民用天然气的浓度标准。通过实验室自建的水合物相平衡实验测定装置，使用恒温压力搜索法确定水合分离的最佳操作条件，并在该条件下进行了多级水合分离实验。结果表明，与传统高用量（10 wt%）促进剂四丁基溴化铵（TBAB）相比，低浓度（2 wt%）的四氢呋喃（THF）即可显著促进油页岩干馏气生成水合物，仅用四级水合分离就可使 CH 4 含量由 15.2% 提高到 92% 以上。该研究结果为油页岩干馏气的水合回收利用提供了理论依据。

关键词: 油页岩干馏气, 水合物, THF, TBAB

CLC Number: 

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