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沉淀及老化温度对浆态床合成甲醇CuO/ZnO/Al2O3催化剂活性及稳定性的影响

李忠,  张小兵,  郭启海,  刘岩,  郑华艳

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文章导航 > 燃料化学学报（中英文）  > 2012 >  40(05): 569-575
李忠, 张小兵, 郭启海, 刘岩, 郑华艳. 沉淀及老化温度对浆态床合成甲醇CuO/ZnO/Al2O3催化剂活性及稳定性的影响[J]. 燃料化学学报（中英文）, 2012, 40(05): 569-575.
引用本文: 李忠, 张小兵, 郭启海, 刘岩, 郑华艳. 沉淀及老化温度对浆态床合成甲醇CuO/ZnO/Al2O3催化剂活性及稳定性的影响[J]. 燃料化学学报（中英文）, 2012, 40(05): 569-575.
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LI Zhong, ZHANG Xiao-bing, GUO Qi-hai, LIU Yan, ZHENG Hua-yan. Influence of precipitation and aging temperature on the performance of CuO/ZnO/Al2O3 catalyst for methanol synthesis in slurry reactor[J]. Journal of Fuel Chemistry and Technology, 2012, 40(05): 569-575.
Citation: LI Zhong, ZHANG Xiao-bing, GUO Qi-hai, LIU Yan, ZHENG Hua-yan. Influence of precipitation and aging temperature on the performance of CuO/ZnO/Al2O3 catalyst for methanol synthesis in slurry reactor[J]. Journal of Fuel Chemistry and Technology, 2012, 40(05): 569-575.
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沉淀及老化温度对浆态床合成甲醇CuO/ZnO/Al2O3催化剂活性及稳定性的影响

  • 1.

    太原理工大学 煤科学与技术教育部重点实验室, 山西 太原 030024;

  • 2.

    太原煤气化公司技术中心, 山西 太原 030024

基金项目: 国家重点基础研究发展规划(973计划,2012CB723105)。
详细信息
    通讯作者:

    李忠, 博士生导师, 主要从事煤化工, 工业催化和有机合成等方向研究, Tel: 0351-6018526; E-mail: lizhong@tyut.edu.cn。

  • 中图分类号: O614.121

Influence of precipitation and aging temperature on the performance of CuO/ZnO/Al2O3 catalyst for methanol synthesis in slurry reactor

  • 1.

    Key Laboratory of Coal Science & Technology of Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China;

  • 2.

    Technical Centre, Taiyuan Coal Gasification (Group) Corporation, Taiyuan 030024, China

Funds: 国家重点基础研究发展规划(973计划,2012CB723105)。

    摘要
  • 摘要: 利用浆态床反应器,考察了沉淀及老化温度对CuO/ZnO/Al2O3催化剂催化合成甲醇的活性及稳定性的影响,并用XRD、BET、FT-IR以及XPS等技术对前驱体及催化剂进行了表征。结果表明,前驱体物相主要以孔雀石(Cu2(CO3)(OH)2)和类孔雀石((Cu,Zn)2(CO3)(OH)2)为主,其中,70 ℃沉淀和80 ℃老化条件下制备的前驱体具有适当的结晶度,焙烧后的催化剂中CuO分布均匀,Cu元素的电子结合能位移最大,CuO与ZnO之间作用较强,催化剂的性能最佳,时空收率和失活率分别达到了153.3 g/(kgcat·h)和1.44%/d。
    Abstract: The influence of the temperature of precipitation and aging on the performance of the CuO/ZnO/Al2O3 catalyst used for methanol synthesis was studied in a slurry reactor. The catalysts and precursors were characterized through XRD, BET, FT-IR and XPS. The results show that the phases of the precursors are mainly consisted of malachite (Cu2(CO3)(OH)2) and zinc malachite ((Cu,Zn)2(CO3)(OH)2), the crystallinity degree of the precursor that precipitated at 70 ℃ and aged at 80 ℃ is proper, and the performance of the catalyst from the precursor is optimal, with its CuO phase dispersing homogeneously, the electron binding energy of Cu element shifting the largest and the electron binding energy of Zn element shifting the minimum. Its space time yield and deactivation rate reach 153.3 g/(kgcat·h) and 1.44%/d respectively.
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出版历程
  • 收稿日期:  2011-07-19
  • 修回日期:  2011-10-26
  • 刊出日期:  2012-05-31

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