Please use this identifier to cite or link to this item: https://doi.org/10.1016/S0926-860X(00)00659-1
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dc.titleCO2 reforming of methane to synthesis gas over sol-gel-made Co/γ-Al2O3 catalysts from organometallic precursors
dc.contributor.authorJi, L.
dc.contributor.authorTang, S.
dc.contributor.authorZeng, H.C.
dc.contributor.authorLin, J.
dc.contributor.authorTan, K.L.
dc.date.accessioned2014-10-09T09:52:05Z
dc.date.available2014-10-09T09:52:05Z
dc.date.issued2001-02-01
dc.identifier.citationJi, L., Tang, S., Zeng, H.C., Lin, J., Tan, K.L. (2001-02-01). CO2 reforming of methane to synthesis gas over sol-gel-made Co/γ-Al2O3 catalysts from organometallic precursors. Applied Catalysis A: General 207 (1-2) : 247-255. ScholarBank@NUS Repository. https://doi.org/10.1016/S0926-860X(00)00659-1
dc.identifier.issn0926860X
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/91898
dc.description.abstractThree cobalt-based catalysts with the same cobalt content (10 wt.%) were prepared by conventional impregnation of commercial γ-Al2O3 support (CoAlCO-IM), sol-gel-made γ-Al2O3 (CoAlSG-IM) and direct sol-gel processing from organometallic compounds (CoAlSG), respectively. At 750 °C, all three catalysts had the same catalytic activity. However, CoAlSG catalyst showed relatively low catalytic activity at low reaction temperatures (550-650 °C) and high space velocity, due to the formation of CoAl2O4. It had the best coking resistivity with the average coking rate of 0.0025 g(carbon) g(cat.)-1 h-1. Fast and heavy coke deposition occurred on CoAlCO-IM catalyst, with an average coking rate of 0.11 g(carbon) g(cat.)-1h-1. The lifetime of CoAlSG catalyst was 24 times longer than that of CoAlCO-IM catalyst, under thermodynamically severe reaction conditions (CO2/CH4 = 0.88, 700 °C). Compared to CoAlCO-IM catalyst, CoAlSG possesses smaller metallic Co particles, richer surface OH species and stronger metal-support interaction. All of these properties may benefit the inhibition of coke formation.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/S0926-860X(00)00659-1
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentPHYSICS
dc.contributor.departmentCHEMICAL & ENVIRONMENTAL ENGINEERING
dc.description.doi10.1016/S0926-860X(00)00659-1
dc.description.sourcetitleApplied Catalysis A: General
dc.description.volume207
dc.description.issue1-2
dc.description.page247-255
dc.description.codenACAGE
dc.identifier.isiut000166754800026
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