粗乙炔中H2S、PH3同时脱除技术研究进展

doi:10.16085/j.issn.1000-6613.2015.02.037

摘要/Abstract

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

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

中图分类号:

X511

李山, 郝吉明, 李凯, 汤立红, 刘烨. 粗乙炔中H₂S、PH₃同时脱除技术研究进展[J]. 化工进展, 2015, 34(02): 534-541.

LI Shan, HAO Jiming, LI Kai, TANG Lihong, LIU Ye. Progress of simultaneous removal of hydrogen sulfide and phosphine from crude acetylene[J]. Chemical Industry and Engineering Progree, 2015, 34(02): 534-541.

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粗乙炔中H₂S、PH₃同时脱除技术研究进展

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

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