Effect of Zeolite on Fischer-Tropsch Synthesis in the Presence of a Catalyst Based on Skeletal Cobalt

被引:8
作者
Asalieva, E. Yu. [1 ]
Kul'chakovskaya, E. V. [1 ]
Sineva, L. V. [1 ,2 ]
Mordkovich, V. Z. [1 ,2 ]
机构
[1] Technol Inst Superhard & Novel Carbon Mat, Moscow 108840, Russia
[2] INFRA Tekhnol, Moscow 125009, Russia
关键词
DIRECT CONVERSION; GASOLINE; CO; SYNGAS; PERFORMANCE;
D O I
10.1134/S0965544120010028
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The joint effect of skeletal cobalt and zeolite on the main catalytic parameters of a pelletized composite catalyst has been studied. All samples contain 50 wt % fine metallic aluminum powder. The amounts of other components are as follows: 20-30 wt % binder (boehmite), 5-20 wt % Beta zeolite in the H form (SiO2/Al2O3 = 38), and 10-20 wt % fine skeletal cobalt. The reference catalyst does not contain any zeolite. All the catalysts exhibit activity in Fischer-Tropsch synthesis and secondary transformations, the intensity of which depends on the zeolite/cobalt ratio. The composition of the resulting hydrocarbons (HCs) varies over a wide range; in particular, the content of n-paraffins and olefins is 39-88 and 3-38%, respectively. The chain growth probability varies in a range of 0.65-0.83 depending on the zeolite/cobalt ratio and the synthesis conditions. It has been shown that the catalysts studied are superior advantage to other cobalt-zeolite catalysts in CO conversion, specific activity, productivity, and stability.
引用
收藏
页码:69 / 74
页数:6
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