Deactivation behaviors of Pt or Ru promoted Co/P-Al2O3 catalysts during slurry-phase Fischer-Tropsch synthesis

被引：26

作者：

Park, Seon-Ju ^{[1
]}

Bae, Jong Wook ^{[1
,2
]}

Lee, Yun-Jo ^{[1
]}

Ha, Kyoung-Su ^{[1
]}

Jun, Ki-Won ^{[1
]}

Karandikar, Prashant ^{[1
]}

机构：

[1] Korea Res Inst Chem Technol, Petr Displacement Technol Res Ctr, Taejon 305600, South Korea

[2] Sungkyunkwan Univ, Sch Chem Engn, Suwon 440746, Kyonggi Do, South Korea

来源：

CATALYSIS COMMUNICATIONS | 2011年 / 12卷 / 06期

关键词：

Fischer-Tropsch synthesis; Cobalt; Ruthenium; Platinum; Aggregation; Deactivation; COBALT CATALYSTS; PERFORMANCE; CARBON;

D O I：

10.1016/j.catcom.2010.11.008

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The catalytic stability of cobalt-based catalyst using phosphorous-modified alumina support (P-Al2O3), promoted with Pt or Ru, during Fischer-Tropsch synthesis (FTS) has been investigated for 1000 h on stream using a slurry-phase continuous-stirred tank reactor. Although catalytic properties such as surface area and particle size of metallic cobalt are similar for both the catalysts, the different deactivation behaviors were observed with respect to the kind of noble metal addition. The slower catalyst deactivation was observed on Pt promoted Co/P-Al2O3 catalyst than Ru promoted one, which seems to be owing to small deposition of polymeric carbons on the surface, confirmed by hydrogenation of surface carbons, and suppressed formation of aggregated catalyst lump at the beginning of FTS reaction. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：539 / 543

页数：5

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