Fischer-Tropsch Synthesis on Ru/Mn/Al2O3 Catalysts: Effects of Manganese Loading

被引：2
作者：
Nurunnabi, Mohammad [1 ]
Murata, Kazuhisa [1 ]
Okabe, Kiyomi [1 ]
Miyazawa, Tomohisa [1 ]
Hanaoka, Toshiaki [1 ]
Sakanishi, Kinya [1 ]
机构：
[1] Natl Inst Adv Ind Sci & Technol, Biomass Technol Res Ctr, Chugo Ku, Hiroshima 7390046, Japan
来源：
JOURNAL OF THE JAPAN PETROLEUM INSTITUTE | 2010年 / 53卷 / 04期
关键词：
Manganese loading; Ruthenium catalyst; Catalyst activity; Deactivation rate; Fischer-Tropsch synthesis; RUTHENIUM CATALYSTS; PRESSURIZED CONDITIONS; RU/SIO2; CATALYSTS; COBALT CATALYSTS; SUPPORTED COBALT; NITRIC-OXIDE; RU/AL2O3; REDUCTION; MN; TEMPERATURE;
D O I：
10.1627/jpi.53.222
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：
A series of Ru/Mn/Al2O3 catalysts with different concentrations of manganese were investigated on catalyst characterization and activity for Fischer-Tropsch synthesis in a continuous stirred tank reactor The Ru/Al2O3 and Ru/MnO showed low catalytic activity and deactivation rate was clearly observed at 493 K and 2 MPa On the other hand, the addition of small amount of manganese in Ru/Mn/Al2O3 (Mn/Al = 1/19) improved catalytic performance for Fischer-Tropsch synthesis In an investigation, we observed a pressure effect between 1 and 6 MPa over Ru/Mn/Al2O3, and this catalyst showed high CO conversion and high stability with time on stream at 4 and 6 MPa At 4 MPa, CO conversion was estimated to be about 95%. The catalysts were characterized by BET surface area. BJH porosity, CO chemisorption, XRD, TPR, TEM and XPS Characterization results suggest that a suitable ratio of manganese to aluminum in Ru/Mn/Al2O3 increases the concentration of active ruthenium metals and it can be associated with the formation of manganese chloride at the catalyst surface
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页码：222 / 231
页数：10
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