Effect of a Carbon Promoter on the Properties of a Co/MgAlO4 Catalyst for Fischer-Tropsch Synthesis

被引：2

作者：

Chernavskii, P. A. ^{[1
,2
,3
]}

Pankina, G. V. ^{[1
,2
]}

Kazantsev, R. V. ^{[2
]}

Maksimov, S. V. ^{[1
]}

Kupreenko, S. Yu. ^{[1
]}

Kharlanov, A. N. ^{[1
]}

Eliseev, O. L. ^{[2
]}

机构：

[1] Moscow MV Lomonosov State Univ, Fac Chem, Moscow 119991, Russia

[2] Russian Acad Sci, Zelinsky Inst Organ Chem, Moscow 119991, Russia

[3] Russian Acad Sci, Topchiev Inst Petrochem Synth, Moscow 119991, Russia

来源：

KINETICS AND CATALYSIS | 2022年 / 63卷 / 03期

关键词：

carbon monoxide; synthesis gas; Fischer-Tropsch synthesis; cobalt catalysts; carbon; COBALT CATALYSTS; SUPPORT; SELECTIVITY; WATER; DEACTIVATION; STABILITY; DESIGN; RE;

D O I：

10.1134/S002315842203003X

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 influence of carbon on the genesis of the active phase of cobalt in aluminum-magnesium spinel supported catalysts on their catalytic properties in the synthesis of hydrocarbons from CO and H-2 has been studied. Promotion with carbon was carried out by two independent methods: in the first one, carbon was deposited on a spinel support by thermolysis of glucose followed by the deposition of cobalt; in the second one, the catalyst was prepared by coimpregnation of the support with a solution of cobalt nitrate and glucose followed by thermolysis. The catalysts were characterized by simultaneous thermal analysis in combination with mass spectroscopy of evolved gases, in situ magnetic measurements, low-temperature nitrogen adsorption, and transmission electron microscopy. The modified catalysts showed a significantly higher CO conversion rate (turnover frequency) and selectivity for target liquid hydrocarbons compared to the unpromoted catalyst.

引用

页码：304 / 311

页数：8

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