含氧煤层气的脱氧技术研究进展
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- 英文论文题名：Progress of Deoxidization for Oxygen-containing Coal Bed Methane
- 论文作者：赵培玉 ; 孙映辉 ; 郝兰霞 ; 贾永 ; 屈江文 ; 苏爱廷 ; 张国杰
- 英文论文作者：Peiyu Zhao ; Yinghui Sun ; Lanxia Hao ; Yong Jia ; Jiangwen Qu ; Aiting Su ; Guojie Zhang ; Key Laboratory of Coal Science and Technology ; Ministry of Education and Shanxi Province ; Taiyuan University of Technology
- 年：2016
- 作者机构：太原理工大学煤科学与技术重点实验室;
- 论文关键词：含氧煤层气 ; 脱氧 ; 变压吸附 ; 还原 ; 低温
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十二分会： 多孔功能材料
- 语种：中文
- 分类号：TD845
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十二分会 ; 多孔功能材料
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：154k
- 原文格式：D
- 会议级别：全国
摘要
本文综述了几种常见的含氧煤层气脱氧方法 ~[1-5]。变压吸附法适用范围广、生产能力强,但是开发高选择性、高容量、易再生的吸附剂是该技术关键。催化燃烧脱氧和催化转化脱氧反应温度较高,放热量大,温度不宜控制,且损失部分甲烷,其关键在于高效、价格低廉的脱氧催化剂的制备。膜分离方法具有分离效率高、能耗较低等优点,但膜分离法对制膜技术要求高,要求膜材料同时具有高的选择性和透过性,因此该方法的关键是新型膜材料的研发。低温分离法产品纯度高、回收率高,但是随着CH_4浓度的降低,单位能耗增加,存在操作安全隐患。而且上述几种脱氧方法仅仅对CH_4体积分数>30%的含氧煤层气脱氧才具有一定的经济价值。而且以上方法均不适用于低浓度煤层气的脱氧。非金属还原法不仅可以实现脱氧剂的循环利用,相对成本低,除氧彻底,而且无杂质气体产生,甲烷损失率较小,特别对于含氧浓度较高的低浓度煤层气具有较好的发展前景~[6,7]。该文还指出了煤层气脱氧今后的发展方向。
This paper reviews several methods of the deoxidation for oxygen-contained coal bed methane gas.The PSA has wide application,strong production capacity,but the development of the high selectivity,high capacity,easy regeneration of the adsorbent is the key to the technology.At present,domestic and foreign scholars have developed a variety of combustion catalysts for deoxidation,but they did not get rid of the methane pyrolysis loss problem.Membrane separation method has high separation efficiency,low energy consumption and other advantages.However,membrane separation technology requires the film material having high selectivity and permeability.Nonmetallic reduction can be recycled deoxidizer,but this technology is currently in the laboratory research stage.Cryogenic separation method has a high recovery characteristic,but with the decrease of the concentration of CH_4,the energy consumption increases.Finally,the main problem of oxygenated CBM development in the future is removal of oxygen of the low concentration coal bed methane.
This paper reviews several methods of the deoxidation for oxygen-contained coal bed methane gas.The PSA has wide application,strong production capacity,but the development of the high selectivity,high capacity,easy regeneration of the adsorbent is the key to the technology.At present,domestic and foreign scholars have developed a variety of combustion catalysts for deoxidation,but they did not get rid of the methane pyrolysis loss problem.Membrane separation method has high separation efficiency,low energy consumption and other advantages.However,membrane separation technology requires the film material having high selectivity and permeability.Nonmetallic reduction can be recycled deoxidizer,but this technology is currently in the laboratory research stage.Cryogenic separation method has a high recovery characteristic,but with the decrease of the concentration of CH_4,the energy consumption increases.Finally,the main problem of oxygenated CBM development in the future is removal of oxygen of the low concentration coal bed methane.
引文
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[2]Cheng,Y,;Wang,L.;Zhang,X.Int.J.Greenh.Gas Con.2011,5(1):157.
[3]肖娅,诸林.化学工业,2013,31(4):31.
[4]吕秋楠,李小森,徐纯刚,陈朝阳,李刚.化工进展,2013,32(6):1267.
[5]Karacan,C.;Ruiz,F.A.;Cotè,M.;Phipps,S.Int.J.Coal Geol.2011,86(2-3):121.
[6]Grogorio,M.;Marta,G.C.;Antonio,B.F.Chem.Eng.Sci.1996,54:495.
[7]张艳,张永发,张国杰.煤炭转化,2009,32(1):68.