Chemical Industry and Engineering Progree ›› 2015, Vol. 34 ›› Issue (02): 534-541.DOI: 10.16085/j.issn.1000-6613.2015.02.037

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Progress of simultaneous removal of hydrogen sulfide and phosphine from crude acetylene

LI Shan, HAO Jiming, LI Kai, TANG Lihong, LIU Ye   

  1. School of Environmental Science and Engineering, Kunming University of Science &Technology, Kunming 650500, Yunnan, China
  • Received:2014-06-30 Revised:2014-08-08 Online:2015-02-05 Published:2015-02-05

粗乙炔中H2S、PH3同时脱除技术研究进展

李山, 郝吉明, 李凯, 汤立红, 刘烨   

  1. 昆明理工大学环境科学与工程学院, 云南 昆明 650500
  • 通讯作者: 李凯,博士,讲师,主要从事大气污染控制及资源化技术的研究。E-mail:likaikmust@163.com
  • 作者简介:李山(1989-),男,硕士研究生,研究方向为大气污染控制。E-mail:1327648243@qq.com
  • 基金资助:
    国家自然科学基金联合基金项目(U1137603)

Abstract: The removal technologies of H2S and PH3 from crude acetylene gas are summarized. Specific methods as well as the advantages and disadvantages of wet process and dry process respectively are presented. Compared with the dry process,the wet process is more mature with the advantages of low price and easy operation,so it is widely used in removing H2S and PH3 from crude acetylene gas. However,the wet process will produce a large amount of wastewater,causing both environmental pollution and waste of water resources. At the same time,dissolved acetylene gas discharged into the sewage causes serious safety risks. Compared with the wet process,the dry process has the advantages of high removal efficiency,safety and pollution free. The dry process after improvement can remove H2S and PH3 from crude acetylene gas effectively with easy regeneration of purifying agent,and can overcome the shortcomings of the wet proces. Therefore,removal technology of H2S and PH3 from crude acetylene gas with the dry process has broad application prospect. However,the relevant mechanism of simultaneous removal of H2S and PH3 should be further studied.

Key words: crude acetylene gas, hydrogen sulfide(H2S), phosphine(PH3), simultaneous removal technologies, catalysis, recovery, safety

摘要: 综述了粗乙炔气净化处理硫化氢和磷化氢技术的研究进展,分别介绍了湿法工艺和干法工艺的具体方法以及存在的优缺点。湿法工艺相比干法更加成熟,兼具价格低廉和易于操作等优点,因而被广泛应用于粗乙炔气中硫磷的净化。然而,湿法工艺会产生大量废水,存在污染环境又浪费水资源的问题。同时溶解有乙炔气的废水排入下水管道,又存在严重的安全隐患。相比湿法工艺,干法工艺具有净化效率高、安全无污染的优点。研究表明,干法工艺经过改进,能有效地净化粗乙炔气中的H2S和PH3,并能有效克服湿法工艺存在的缺点,并且干法工艺的净化剂易于再生。因此,干法同时脱除粗乙炔气中的H2S和PH3具有较为广阔的应用前景。然而,干法工艺同时脱除H2S和PH3的相关机理还有待进一步研究。

关键词: 粗乙炔气, 硫化氢, 磷化氢, 同时脱除技术, 催化作用, 回收, 安全

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