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MoP/SiO2-TiO2-ZrO2加氢脱硫催化剂的研制

Preparation of MoP/SiO2-TiO2-ZrO2 hydrodesulfurization catalyst

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【作者】 丁保宏王海彦纪晓飞于廷云臧树良

【Author】 DING Bao-hong1.3,WANG Hai-yan2,JI Xiao-fei 2,YU Ting-yun2,ZANG Shu-liang1.2(1.Department of Chemistry,East China Normal University Shanghai 200062,China;2.Liaoning Petrochemical Engineering University Fushun 113001,China;3.College of Profession and Technology of Fushun Fushun 113006,China)

【机构】 华东师范大学化学系抚顺职业技术学院辽宁石油化工大学

【摘要】 采用共沉淀法制备了SiO2-TiO2-ZrO2复合载体,并用共浸渍法制备了负载型MoP/SiO2-TiO2-ZrO2催化剂,通过H2原位还原技术对催化剂进行还原处理,在小型连续固定床反应器上进行催化剂的加氢脱硫活性评价。结果表明,SiO2-TiO2-ZrO2复合载体为介孔材料,MoP/SiO2-TiO2-ZrO2比一元及二元载体催化剂的加氢脱硫活性提高了12-31%;Si/Ti/Zr摩尔比以及MoP的负载量对催化剂的活性有很大影响,当n(Si)/n(Ti)/n(Zr)=0.163/0.809/0.028、MoP的负载量为20%时,催化剂的加氢脱硫效果最好:在380℃、压力4.0 Mpa、空速6 h(1、氢油比500条件下,二苯并噻吩的转化率达到了99.1%。

【Abstract】 The composite support of SiO2-TiO2-ZrO2 was prepared by coprecipitation method,and active components was co-impregnated on the support to form MoP/SiO2-TiO2-ZrO2 catalyst.The catalyst was insitu reduced,and its desu1furization activity was evaluated in a small running fixed bed reactor.The test results showed that as compared with catalyst using unitary or binary support the desulfurization rate of the catalyst using SiO2-TiO2-ZrO2 support was 12-31 % higher;The catalyst activity was affected by the Si/Ti/Zr mole ratio and the MoP loading amount significantly.It was shown that MoP/SiO2-TiO2-ZrO2 catalyst having a Si/Ti/Zr mole ratio of 0.163/0.809/0.028 and a MoP loading amount of 20 % exhibited the best HDS activity,its dibenzothiophene percent conversion reached 99.1 % under the test condition of 380 ℃、4.0 Mpa、6 h﹣1 and oil-hydrogen ratio 500.

【基金】 国家自然科学基金(20671047)资助;中国石油股份有限公司合作项目(07-02-05-07)资助
  • 【文献出处】 化学研究与应用 ,Chemical Research and Application , 编辑部邮箱 ,2010年09期
  • 【分类号】TE624.93
  • 【被引频次】4
  • 【下载频次】248
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