Long-chain hydrocarbons from syngas on nano-sized cobalt catalyst: Promotion effect of ruthenium

Conference · Wed Dec 31 04:00:00 EST 1997

OSTI ID:324759

Zhang, Y; Zhong, B; Wang, Q ^[1]

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1. Chinese Academy of Sciences, Taiyuan (China). Inst. of Coal Chemistry

SiO{sub 2} aerogel ultrafine powder and ZrO{sub 2}-SiO{sub 2} ultrafine complex oxide were prepared by sol-gel method. Co/ZrO{sub 2}-SiO{sub 2} and Co-Ru/ZrO{sub 2}-SiO{sub 2} catalysts were prepared by incipient wetness technique and physically mixing method. The effect of ruthenium addition on texture, structure, reduction, H{sub 2} desorption and Fischer-Tropsch synthesis reaction properties of nano-sized cobalt based catalysts is investigated. The results indicate that addition of ruthenium makes the reduction of Co{sup 2+} difficult. The activity of the catalyst drops a little. The selectivity of CH{sub 4} decreases and selectivity of C{sub 5+} increases. Distribution of hydrocarbon products deviates from Schulz-Flory distribution; there are two peaks at C{sub 9} and C{sub 15} respectively.

• OSTI ID: 324759
• Report Number(s): CONF-970931--
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL PREPARATION
COBALT
FISCHER-TROPSCH SYNTHESIS
HYDROCARBONS
METHANE
PERFORMANCE TESTING
RUTHENIUM
SILICON OXIDES
ZIRCONIUM OXIDES