Improvement of the Fischer–Tropsch Synthesis Activity of Co/SiO2 Catalyst by the Stepwise Impregnation Method with Chelating Agents

被引：0
作者：
Takehisa Mochizuki
Daichi Hongo
Takuya Satoh
Naoto Koizumi
Muneyoshi Yamada
机构：
[1] Tohoku University,Department of Applied Chemistry, Graduate School of Engineering
来源：
Catalysis Letters | 2008年 / 121卷
关键词：
Fischer–Tropsch synthesis; Co/SiO; catalyst; Chelating agents; -1,2-diamino-cyclohexane-; -tetraacetic acid (CyDTA);
D O I：
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中图分类号：
学科分类号：
摘要：
Co/SiO2 catalysts were prepared by a stepwise impregnation of aqueous solutions containing Co nitrate or chelating agent, nitrilotriacetic acid (NTA) or trans-1,2-diaminocyclohexane-N,N,N′,N′-tetraacetic acid (CyDTA), with various concentrations of Co2+ and the chelating agent. Fischer–Tropsch synthesis activity of Co/SiO2 catalysts having Co loadings of 5–20 mass% as metallic Co was improved by the stepwise impregnation method with these chelating agents. The catalyst prepared with CyDTA (Co loading = 20 mass%, Co2+/CyDTA = 4 mol mol−1) yielded 1,500 and 815 g kg-cat−1 h−1 of C5+ and C10–20 hydrocarbons at 503 K and 1.1 MPa, respectively, which was much greater than that with the catalyst prepared from the aqueous solution containing both Co nitrate and NTA.
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页码：52 / 57
页数：5
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