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Influence of lanthanum on the performance of Zr-Co/activated carbon catalysts in Fischer-Tropsch synthesis
Wang, Tao1; Ding, Yunjie1,2; Lue, Yuan1; Zhu, Hejun1; Lin, Liwu1,2; Ding YJ(丁云杰); Ding YJ(丁云杰)
关键词Lanthanum Promoter Fischer-tropsch Synthesis Zr-co/ac Catalyst Reducibility
刊名JOURNAL OF NATURAL GAS CHEMISTRY
2008-06-01
ISSN1003-9953
17期:2页:153-158
收录类别SCI
文章类型Article
部门归属8
项目归属805
产权排名1;1
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Applied ; Chemistry, Physical ; Energy & Fuels ; Engineering, Chemical
研究领域[WOS]Chemistry ; Energy & Fuels ; Engineering
关键词[WOS]SUPPORTED COBALT CATALYSTS ; CO HYDROGENATION ; ACTIVATED-CARBON ; PROMOTION ; RUTHENIUM ; MONOXIDE ; DISPERSION ; VANADIUM ; ALUMINA ; BORON
英文摘要The influence of La loading on Zr-Co/activated carbon (AC) catalysts has been studied for Fischer-Tropsch synthesis. The catalyst samples were characterized by XRD, TPR, CO-TPD, and temperature programmed CO hydrogenation. The catalytic property was evaluated in a fixed bed reactor. The experimental results showed that CO conversion increased from 86.4% to 92.3% and the selectivity to methane decreased from 14.2% to 11.5% and C(5+) selectivity increased from 71.0% to 74.7% when low La loading (La = 0.2wt%) was added into the Zr-Co/AC catalyst. However, high loadings of La (La = 0.3-1.0 wt%) would decrease catalyst activity as well as the C5+ selectivity and increase methane selectivity. XRD results displayed that La-modified Zr-Co/AC catalyst had little effect on the dispersion of Co catalyst. But, the results of TPR, CO-TPD, and temperature programmed CO hydrogenation techniques indicated that the extent of cobalt reduction was found to greatly influence the activity and selectivity of the catalyst. The addition of a small amount of La increased the reducibility of the Zr-Co/AC catalyst and restrained the formation of methane and improved the selectivity to long chain hydrocarbons. However, excess of La led to the decrease of the reducibility of Co catalyst thus resulted in higher methanation activity.
语种英语
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WOS记录号WOS:000257686500008
引用统计
被引频次:27[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/100231
专题中国科学院大连化学物理研究所
通讯作者Ding YJ(丁云杰); Ding YJ(丁云杰)
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Lab Appl Catalysis, Dalian 116023, Liaoning, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
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GB/T 7714
Wang, Tao,Ding, Yunjie,Lue, Yuan,et al. Influence of lanthanum on the performance of Zr-Co/activated carbon catalysts in Fischer-Tropsch synthesis[J]. JOURNAL OF NATURAL GAS CHEMISTRY,2008,17(2):153-158.
APA Wang, Tao.,Ding, Yunjie.,Lue, Yuan.,Zhu, Hejun.,Lin, Liwu.,...&丁云杰.(2008).Influence of lanthanum on the performance of Zr-Co/activated carbon catalysts in Fischer-Tropsch synthesis.JOURNAL OF NATURAL GAS CHEMISTRY,17(2),153-158.
MLA Wang, Tao,et al."Influence of lanthanum on the performance of Zr-Co/activated carbon catalysts in Fischer-Tropsch synthesis".JOURNAL OF NATURAL GAS CHEMISTRY 17.2(2008):153-158.
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