Fischer-Tropsch Synthesis over Bifunctional Catalysts Based on HBeta Zeolite

被引：1
|
作者：
Papeta, O. P. [1 ]
Sulima, S. I. [1 ]
Bakun, V. G. [1 ]
Zubkov, I. N. [1 ]
Saliev, A. N. [1 ]
Yakovenko, R. E. [1 ]
机构：
[1] Platov South Russian State Polytech Univ, Novocherkassk 346428, Russia
来源：
PETROLEUM CHEMISTRY | 2023年 / 63卷 / 07期
关键词：
Fischer-Tropsch synthesis; cobalt catalyst; HBeta zeolite; selectivity; synthetic fuel; COBALT CATALYSTS; CO; SYNGAS; TOOL;
D O I：
10.1134/S0965544123060063
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
A number of catalysts were synthesized from a composite mixture consisting of a metal component (specifically, a Co-Al2O3/SiO2 catalyst in an amount of 20-40% for the synthesis of long-chain hydrocarbons), an acid component (Beta zeolite in the H-form, 20-50%), and a binder (boehmite). The catalysts were characterized by XRD, low-temperature argon adsorption/desorption, and TPR, and tested in Fischer-Tropsch synthesis at 2.0 MPa, 240 degrees C, and GHSV 1000 h(-1). The activity and selectivity of the catalysts were compared, and the composition of the synthetic products was investigated. The content of the zeolite component was found to be critical to the cracking and isomerization activity of the catalysts. It was further shown that the ratio between the active components correlates with the C5+ productivity and the selectivity towards fuel-range hydrocarbons. The catalysts with Co-Al2O3/SiO2 to HBeta ratios of 0.75 and 1.3 were found to be optimal for high-performance synthesis of gasoline-range (C-5-C-10) and diesel-range (C-11-C-18) hydrocarbons, respectively.
引用
收藏
页码：737 / 745
页数：9
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