水热法制备Ni-Sm/SiC催化剂甲烷二氧化碳重整性能的研究

WANG Bing; JIN Guo-qiang; WANG Ying-yong; GUO Xiang-yun

水热法制备Ni-Sm/SiC催化剂甲烷二氧化碳重整性能的研究

王冰^{1, 2},
靳国强^1, ,,
王英勇¹,
郭向云¹

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.
中国科学院大学, 北京 100049

基金项目:

The project was supported by the Major State Basic Research Development Program of China 973计划，2011CB201405

the Key Science and Technology Projects of Shanxi Province 20131101035

详细信息

中图分类号: O643
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出版历程
- 收稿日期: 2016-08-19
- 修回日期: 2016-09-29
- 网络出版日期: 2021-01-23
- 刊出日期: 2016-12-10

Ni-Sm/SiC catalysts prepared by hydrothermal method for carbon dioxide reforming of methane

1.
State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
2.
University of Chinese Academy of Sciences, Beijing 100049, China

Funds:

The project was supported by the Major State Basic Research Development Program of China 973计划，2011CB201405

the Key Science and Technology Projects of Shanxi Province 20131101035

More Information

Corresponding author: Tel/ Fax: 0351-4049306, gqjin@sxicc.ac.cn

摘要

摘要: 通过水热法制备了Ni-Sm/SiC催化剂（Ni的含量固定为9%，钐的含量固定为5%）。采用XRD、BET、ICP、H₂-TPR、TG-DTA和TEM等技术对催化剂进行表征。对催化剂在甲烷二氧化碳重整反应中的催化活性、不同镍前驱体的影响、催化剂的积炭行为进行了研究。研究结果表明，水热法制备的Ni-Sm/SiC催化剂有着优异的催化活性、稳定性和抗积炭能力。不同镍前驱体对催化剂的性能没有影响。
- 甲烷二氧化碳重整 /
- Ni-Sm_x/SiC /
- 水热法
Abstract: Ni-Sm/SiC (Ni:9%, Sm:5%) catalysts were prepared by a hydrothermal route for carbon dioxide reforming of methane. The catalysts were characterized by XRD, BET, ICP, H₂-TPR, TG-DTA and TEM. The catalytic performance, influence of different nickel precursors and carbon deposition in the CO₂ reforming of CH₄ were investigated. The results suggested that the Ni-Sm/SiC catalysts prepared by a hydrothermal route showed excellent catalytic activity, stability and good coke resistance. Different nickel precursors nearly had no impact on the performance of the catalysts.
- CO₂reforming of CH₄ /
- Ni-Sm_x/SiC catalysts /
- hydrothermal method

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Figure 1 XRD patterns of the fresh (a) and used (b) Ni-Sm/SiC catalysts

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Figure 2 H₂-TPR profiles of the Ni-Sm/SiC catalysts

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Figure 3 TG (a) and DTA (b) profiles of the used catalysts

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Figure 4 Evolution of conversion with time on stream over different catalysts

(a): HN; (b): HA reaction conditions: temperature=800℃，GHSV=10000 mL/(g·h), CH₄/CO₂(molar ratio)=1.0

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Figure 5 TEM images of the (a) fresh and (b) used HN catalysts

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Table 1 BET and ICP results of the Ni-Sm/SiC catalysts

Sample Pure SiC HN catalyst HA catalyst

Surface area
A/(m²·g^-1) 36.8 82.2 74.7

Ni loading w/% - 8.62 8.52

Sm loading w/% - 4.91 4.57

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