用户名: 密码: 验证码:
天然气脱氮工艺评述
详细信息    查看全文 | 推荐本文 |
  • 英文篇名:Review on natural gas denitrification process
  • 作者:顾晓峰 ; 王日生 ; 吴宝清 ; 陈赓良
  • 英文作者:Gu Xiaofeng;Wang Risheng;Wu Baoqing;Chen Gengliang;Jiangsu Taihu New Material Holding Company Ltd.;Research Institute of Natural Gas Technology,PetroChina Southwest Oil & Gasfield Company;
  • 关键词:天然气 ; 脱氮 ; 劣质天然气 ; 深度冷冻 ; 马拉法 ; 变压吸附 ; 膜分离 ; 混合膜结构
  • 英文关键词:natural gas;;denitrification;;sub-quality natural gas(SQNG);;cryogenic;;Mehra process;;pressure swing adsorption(PSA);;membrane separation;;mix membrane structure
  • 中文刊名:STQG
  • 英文刊名:Chemical Engineering of Oil & Gas
  • 机构:江苏太湖新材料控股责任公司;中国石油西南油气田公司天然气研究院;
  • 出版日期:2019-02-15
  • 出版单位:石油与天然气化工
  • 年:2019
  • 期:v.48;No.249
  • 语种:中文;
  • 页:STQG201901003
  • 页数:6
  • CN:01
  • ISSN:51-1210/TE
  • 分类号:17-22
摘要
为了加速致密油气藏、页岩气和劣质天然气(SQNG)的开发与利用,近年来,天然气脱氮工艺在全球范围内受到普遍关注。当前应用于工业的天然气脱氮工艺包括:深度冷冻、溶剂吸收、变压吸附和膜分离。深度冷冻工艺流程复杂,投资与成本均较高,较适用于氮气含量相对较高的、处理高压天然气的大型脱氮装置。溶剂吸收工艺因溶剂选择困难且循环量大,还需要致冷系统,近年来工业上很少采用。"Molecular Gate"脱氮工艺的关键技术是使用孔径尺寸可以调节和控制的硅酸钛分子筛,此工艺已成为当前中、小型脱氮装置使用工艺的发展主流。随着天然气脱氮用特殊膜分离材料的成功开发,膜分离脱氮工艺也正在迅速发展,但膜材料的性能还有待进一步完善。
        For speeding up the development of compact oil and gas reservoirs,shale gas and sub-quality natural gas(SQNG),the natural gas denitrification process has been received widespread attention all over the world in recent years.At present,four kinds of denitrification process are used in natural gas industry which including cryogenic,solvent absorption(Mahra process),pressure swing adsorption(PSA) and membrane separation.The flow-sheet of cryogenic process is complicated and the investment and cost are high.So it is only suitable for large unit treating high pressure feed gas with high concentration of N_2.The Mahra process is rarely adopted in industry recently as the selection of solvent because Mahra process is difficult and the solvent circulation rate is high,additionally,it needs refrigerating system.The titanium silicate molecular sieve of which the aperture size can be adjusted and controlled was applied to the Molecular Gate denitrification process.The key technology made it become the main technique of medium and small denitrification units.Along with the successful development of special membrane separation material,the membrane separation denitrification process advances very fast,but the properties of the membrane materials need to be further improved.
引文
[1] 刘成军, 王志刚, 钟建强. 天然气脱氮工艺综述[J]. 石油规划设计, 2000, 11(4): 18-20.
    [2] KOHL A, NIELSEN R. Gas purification[M]. 5th ed. Houston, Tex: Gulf Professional Publishing, 1997: 1344.
    [3] 陈赓良, 朱利凯. 天然气处理与加工工艺原理及技术进展[M]. 北京: 石油工业出版社, 2010: 393.
    [4] MITARITEN M. Economic N2 removal[M]. Dublin, Ohio: Guild Associates, Inc., 2009.
    [5] Nitrogen removal from natural gas-NitroSep System[Z]. MTR公司技术资料(2009).

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700