物理化学学报 >> 2001, Vol. 17 >> Issue (07): 641-644.doi: 10.3866/PKU.WHXB20010714

研究简报 上一篇    下一篇

汽油催化裂化脱硫USY/ZnO/Al2O3催化剂

李春义;山红红;赵博艺;杨朝合;张建芳   

  1. 石油大学化学化工学院　重质油国家重点实验室，东营　257061
  • 收稿日期:2000-12-26 修回日期:2001-01-27 发布日期:2001-07-15
  • 通讯作者: 李春义 E-mail:chyli@mail.hdpu.edu.cn

USY/ZnO/Al2O3 Catalyst for Gasoline Desulfurization via Catalytic Cracking

Li Chun-Yi;Shan Hong-Hong;Zhao Bo-Yi;Yang Chao-He;Zhang Jian-Fang   

  1. National Key Laboratory of Heavy Oil Processing,College of Chemistry ＆ Chemic al Engineering,University of Petroleum,Donying　257061
  • Received:2000-12-26 Revised:2001-01-27 Published:2001-07-15
  • Contact: Li Chun-Yi E-mail:chyli@mail.hdpu.edu.cn

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摘要： 提出了汽油经催化裂化脱硫的技术路线，并对催化剂进行了研究.综合采用浸渍和共 沉淀法制备的USY/ZnO/Al2O3汽油催化裂化脱硫催化剂在固定床反应装置上评价结果表明， 具有优异的脱硫活性和硫化物裂化选择性.脱除的硫绝大多数以H2S的形式进入到裂化气中， 仅有少量沉积在催化剂上，这有利于硫的回收利用和环境保护.硫化物的裂化脱硫是裂化和 氢转移反应协同作用的结果，高温有利于裂化反应,而相对较低的温度对氢转移有利，420 ℃左右为汽油裂化脱硫的最佳温度是这对矛盾作用的结果.

关键词: 汽油, 催化裂化, 脱硫, USY/ZnO/Al2O3催化剂

Abstract: The USY/ZnO/Al2O3 catalyst,prepared with impregnation and co-depositi on method,for gasoline desulfurization via catalytic cracking was evaluated in a fixed-bed reaction apparatus.The results show that the catalyst has excellent sulfur removal activity and selectivity (Table 1).Most of the sulfur removed fro m gasoline is transformed as H2S into the cracking gas and only a little deposit s on the catalyst (Fig.3),which is very favorable for sulfur recovery and protec ting the environment.Cracking desulfurization of sulfide is the result of synerg ism between cracking and hydrogen transfer.The two reactions require different a ppropriate temperatures.There is then an optimal temperature at around 420℃ for gasoline desulfurization.

Key words: Gasoline, Catalytic cracking, Desulfurization, USY/ZnO/Al2O3 Catalyst