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浸渍沉淀法制备活性炭负载Co-Mo双金属脱硫催化剂

王广建,  邴连成,  郭娜娜,  杨志坚,  张健康

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文章导航 > 燃料化学学报（中英文）  > 2012 >  40(10): 1252-1257
王广建, 邴连成, 郭娜娜, 杨志坚, 张健康. 浸渍沉淀法制备活性炭负载Co-Mo双金属脱硫催化剂[J]. 燃料化学学报（中英文）, 2012, 40(10): 1252-1257.
引用本文: 王广建, 邴连成, 郭娜娜, 杨志坚, 张健康. 浸渍沉淀法制备活性炭负载Co-Mo双金属脱硫催化剂[J]. 燃料化学学报（中英文）, 2012, 40(10): 1252-1257.
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WANG Guang-jian, BING Lian-cheng, GUO Na-na, YANG Zhi-jian, ZHANG Jian-kang. Preparation of activated carbon-supported Co-Mo bimetallic catalyst by impregnation-precipitation method[J]. Journal of Fuel Chemistry and Technology, 2012, 40(10): 1252-1257.
Citation: WANG Guang-jian, BING Lian-cheng, GUO Na-na, YANG Zhi-jian, ZHANG Jian-kang. Preparation of activated carbon-supported Co-Mo bimetallic catalyst by impregnation-precipitation method[J]. Journal of Fuel Chemistry and Technology, 2012, 40(10): 1252-1257.
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浸渍沉淀法制备活性炭负载Co-Mo双金属脱硫催化剂

  • 青岛科技大学, 山东 青岛 266042

基金项目: 国家自然科学基金(20776070, 21076110)。
详细信息
    通讯作者:

    王广建(1963-),男,山东青州人,教授,博士。从事催化新材料、环境净化催化工程及反应器等领域的研究。Tel:13708983537,E-mail:wgjnet@126.com。

  • 中图分类号: O643.36+1

Preparation of activated carbon-supported Co-Mo bimetallic catalyst by impregnation-precipitation method

  • Qingdao University of Science and Technology, Qingdao 266042, China

    摘要
  • 摘要: 以氧化改性活性炭为载体,尿素为沉淀剂,采用浸渍沉淀法制备了负载型Co-Mo催化剂,并用CO还原SO2反应作为模型反应考察了催化剂的催化活性。结果表明,催化剂焙烧温度500℃、Co/Mo物质的量比0.45、最佳反应条件(硫化温度为500℃、空速为7 000 mL/(g·h)、CO/SO2物质的量比为2:1,反应温度为450℃)时,催化剂具有最好的催化活性和选择性。XRD表征结果表明,催化CO还原SO2反应的活性相为CoS2和MoS2,硫化温度影响活性相的形成。该催化剂稳定性好,反应运行24 h后活性仍能保持最高活性的99%。
    Abstract: Supported Co-Mo catalyst was prepared by impregnation-precipitation method using modified activated carbon as carrier and urea as precipitant.Catalytic activity of catalyst was studied by using the reduction of SO2 by CO.Under optimum reaction conditions (sulfidation temperature 500℃; GHSV=7 000 mL·g-1·h-1;CO/SO2 mol ratio =2:1; reaction temperature 450℃), the best catalytic activity and selectivity were obtained for Co-Mo catalyst with calcination temperature was 500℃ and Co/Mo mol ratio =0.45. Catalyst samples were characterized by X-ray powder diffraction (XRD) in order to relate the phase composition to the activation behavior and catalytic performance.The active phases of catalyst were detected as CoS2 and MoS2,and the formation of them were greatly dependent on the sulfidation temperature.And the catalytic activity of cobalt molybdenum catalyst decreased less than 1% after the reaction lasted for 24 h.
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出版历程
  • 收稿日期:  2012-02-24
  • 修回日期:  2012-05-15
  • 刊出日期:  2012-10-31

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