制备条件对介孔Ni-CaO-ZrO<sub>2</sub>在甲烷三重整反应中催化性能的影响

司兰杰; 王长真; 孙楠楠; 闻霞; 赵宁; 肖福魁; 魏伟; 孙予罕

制备条件对介孔Ni-CaO-ZrO₂在甲烷三重整反应中催化性能的影响

司兰杰^1,2,
王长真^1,2,
孙楠楠¹,
闻霞¹,
赵宁¹,
肖福魁¹,
魏伟^1,,
孙予罕^1,3

1.
中国科学院山西煤炭化学研究所煤转化国家重点实验室, 山西太原 030001;
2.
中国科学院研究生院, 北京 100049;
3.
中国科学院上海高等研究院低碳转化中心, 上海 201203

基金项目: 中国科学院知识创新工程重要方向(KGCX2-YW-323)。

详细信息

通讯作者:
魏伟, Tel: 0351-4049612, E-mail: weiwei@sxicc.ac.cn。

中图分类号: O643
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出版历程
- 收稿日期: 2011-08-23
- 修回日期: 2011-11-30
- 刊出日期: 2012-02-29

Influence of preparation conditions on the performance of Ni-CaO-ZrO₂ catalysts in the tri-reforming of methane

1.
State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China;
2.
Graduate University of Chinese Academy of Sciences, Beijing 100049, China;
3.
Low Carbon Conversion Center, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201203, China

摘要

摘要: 在不同条件下采用并流共沉淀法制备了Ni-CaO-ZrO₂催化剂,并将其用于CH₄的三重整反应过程。以CH₄的转化率和催化剂稳定性为指标,研究了催化剂制备过程中各工艺参数对其催化性能的影响。结果表明,催化剂的最佳制备条件为:焙烧温度973 K、前驱体沉淀pH=10~12、回流时间24 h。在该条件下得到的催化剂具有适宜的比表面积和Ni-ZrO₂相互作用,在常压、973 K的反应条件下CH₄的转化率能够达到70%,具有较高的催化活性和稳定性。
- 甲烷 /
- 三重整 /
- Ni基催化剂 /
- 制备条件
Abstract: Ni-CaO-ZrO₂ catalysts were prepared by co-precipitation under different conditions and used in the tri-reforming of methane; the influence of preparation conditions on methane conversion and catalytic stability was evaluated. The results indicated that the optimal parameters used to prepare Ni-CaO-ZrO₂ catalysts include a calcination temperature of 973 K, a pH value of 10~12 for co-precipitation, and a reflux duration of 24 h. The catalyst prepared under the optimal conditions has a proper surface area and Ni-ZrO₂ interaction; it exhibits promising catalytic activity and stability in methane tri-reforming, and the methane conversion exceeds 70% under a temperature of 973 K and atmospheric pressure.
- methane /
- tri-reforming /
- nickel-based catalyst /
- preparation conditions

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参考文献(12)

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