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›› 2001, Vol. 1 ›› Issue (4): 0-0.

• 4 •    

焦化苯中噻吩在酸性沸石催化剂上的催化裂解性能

徐新, 罗国华, 张国英, 杨春育, 郭新闻   

  1. (1. 北京石油化工学院化工系, 北京 102600; 2. 大连理工大学碳资源综合利用开放实验室, 辽宁 大连 116012
  • 出版日期:2001-08-20 发布日期:2001-08-20

Cracking of Thiophene in Coke-oven Benzene over the HZSM-5 Zeolite Sieve

XU Xin1, LUO Guo-hua1, ZHANG Guo-ying1, YANG Chun-yu1, GUO Xin-wen2   

  1. 1. Dept. Chem. Eng., Beijing Inst. Petro-chem. Technol., Beijing 102600, China;2. Open Lab. Compreh. Util. for Carbon Resources, Dalian Univ. Technol., Dalian, Liaoning 116012, China
  • Online:2001-08-20 Published:2001-08-20

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摘要： 研究了焦化苯中噻吩在酸性沸石催化剂上的催化裂解性能. 结果表明：噻吩在HZSM-5沸石催化剂的作用下被分解生成硫化氢气体逸出，进而达到脱硫的目的. 通过对不同温度和压力下的催化脱硫性能进行考察，认为HZSM-5沸石催化剂对脱除苯中噻吩具有较高的活性及较好的活性稳定性，且温度、压力是影响催化剂活性和稳定性的重要因素. 以含270 mg/L噻吩的焦化苯为原料，在反应温度为320~380℃、反应压力为3.5~6.0 MPa、质量空速为4~12 h-1的条件下，能彻底脱除其中的噻吩.

关键词: ZSM-5沸石, 焦化苯, 噻吩, 脱硫

Abstract: Removal of thiophene from coke-oven benzene over the HZSM-5 zeolite was investigated. The reaction temperature and pressure are the keys to the catalytic activity and the activity stability of HZSM-5 catalyst, over which thiophene is converted into sulfide hydrogen. At the reaction conditions of temperature 320~380oC, WHSV 4.0~12.0 h-1 and reaction pressure 2.0~6.0 MPa, HZSM-5 catalytic activity and stability are excellent, and the rate of removal of thiophene from coke-oven benzene is more than 99%.

Key words: ZSM-5 zeolite, coke-oven benzene, thiophene, desulfurization

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