The characterization of micro-structure of cobalt on γ-Al2O3 for FTS: Effects of pretreatment on Ru-Co/γ-Al2O3

被引：38

作者：

Jung, Jae-Sun ^{[1
,2
]}

Lee, Jae-Suk ^{[1
]}

Choi, Garam ^{[1
]}

Ramesh, S. ^{[1
]}

Moon, Dong Ju ^{[1
,2
]}

机构：

[1] KIST, Clean Energy Res Ctr, Seoul, South Korea

[2] UST, Clean Energy & Chem Engn, Taejon, South Korea

来源：

FUEL | 2015年 / 149卷

关键词：

Fischer-Tropsch Synthesis; Calcination atmosphere; GTL-FPSO; Direct reduction; FISCHER-TROPSCH SYNTHESIS; CATALYSTS; PERFORMANCE; HYDROCARBONS; CALCINATION; DEPOSITION; SUPPORT; PHASE;

D O I：

10.1016/j.fuel.2014.09.001

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Ruthenium-promoted gamma-Al2O3-supported cobalt catalysts were prepared by different slurry impregnation methods and calcined in a hydrogen/air atmosphere. The prepared catalysts were well characterized by N-2 physisorption, TPR, XRD, TEM and XPS techniques. The addition of Ru caused the reduction peaks to shift towards lower temperatures due to the spillover of hydrogen from the Ru species. The ruthenium-promoted catalyst calcined under a hydrogen atmosphere leads to metallic cobalt with an HCP structure and shows good catalytic activity for Fischer Tropsch Synthesis under the reaction conditions studied. The catalyst calcined under an air atmosphere leads to metallic cobalt with FCC structures and showed lower catalytic activity. It was also found that the calcination atmosphere and structure of the catalyst have a profound effect on the activity and selectivity for FT synthesis. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：118 / 129

页数：12

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