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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)
KeywordLanthanum Promoter Fischer-tropsch Synthesis Zr-co/ac Catalyst Reducibility
Source PublicationJOURNAL OF NATURAL GAS CHEMISTRY
2008-06-01
ISSN1003-9953
Volume17Issue:2Pages:153-158
Indexed BySCI
SubtypeArticle
Department8
Funding Project805
Contribution Rank1;1
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Applied ; Chemistry, Physical ; Energy & Fuels ; Engineering, Chemical
WOS Research AreaChemistry ; Energy & Fuels ; Engineering
WOS KeywordSUPPORTED COBALT CATALYSTS ; CO HYDROGENATION ; ACTIVATED-CARBON ; PROMOTION ; RUTHENIUM ; MONOXIDE ; DISPERSION ; VANADIUM ; ALUMINA ; BORON
AbstractThe 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.
Language英语
URL查看原文
WOS IDWOS:000257686500008
Citation statistics
Cited Times:27[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/100231
Collection中国科学院大连化学物理研究所
Corresponding AuthorDing YJ(丁云杰); Ding YJ(丁云杰)
Affiliation1.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
Recommended Citation
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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