Influence of sucrose addition and acid treatment of silica-supported Co-Ru catalysts for Fischer-Tropsch synthesis

被引：8

作者：

Ribeiro, Andre T. S. ^{[1
]}

Bezerra, Victor V. L. ^{[1
]}

Bartolomeu, Rodrigo A. C. ^{[1
]}

Abreu, Cesar A. M. ^{[1
]}

Filho, Nelson M. L. ^{[1
]}

Silva, Antonio O. S. ^{[2
]}

Maranhao, Laisse C. A. ^{[1
]}

Merino, David ^{[3
]}

Sanz, Oihane ^{[3
]}

Montes, Mario ^{[3
]}

Machado, Giovanna ^{[4
]}

Almeida, Luciano C. ^{[1
]}

机构：

[1] Univ Fed Pernambuco, Technol & Geosci Ctr, Dept Chem Engn, BR-50740521 Recife, PE, Brazil

[2] Univ Fed Alagoas, Technol Ctr, Dept Chem Engn, BR-57072970 Maceio, AL, Brazil

[3] Univ Basque Country, UPV EHU, Dept Appl Chem, San Sebastian, Spain

[4] Northeast Ctr Strateg Technol, Lab Microscope & Microanal, BR-50740540 Recife, PE, Brazil

来源：

FUEL | 2018年 / 231卷

关键词：

Fischer-Tropsch synthesis; Co-based catalysts; Chelating compounds; Acid treatment; COBALT CATALYSTS; PORE-SIZE; CHELATING-AGENTS; PERFORMANCE; CO/SIO2; REDUCIBILITY; PRETREATMENT; DISPERSION; TEMPERATURE; CONVERSION;

D O I：

10.1016/j.fuel.2018.05.064

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：

This article highlights the formulation and evaluation of Co-Ru catalysts on silica used in Fischer-Tropsch synthesis. An acid treatment of the support associated with the addition of sucrose as a chelating agent was employed. The six formulated catalytic systems were characterized (TG, XRD, N-2 adsorption, H-2-TPR, H-2 chemisorption) and evaluated in a fixed bed tubular reactor (H-2/CO:2:1, 2MPa, space velocity 4.5 x 10(-2) LN.g(cat)(-1).h(-1)) at five different temperatures (185 degrees C, 200 degrees C, 215 degrees C, 230 degrees C, 260 degrees C). The combination of both methods enhanced the cobalt dispersion, which is accompanied by an increase in C5+ hydrocarbon productivity. However, an optimum acid treatment is required to avoid large cobalt particle formation that leads to low CO conversion.

引用

页码：157 / 164

页数：8

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