Dehydrogenation of Propane in the Presence of CO2 on Supported Monometallic MOy/SiO2 and CrOxMOy/SiO2 (M = Fe, Co, and Ni) Bimetallic Catalysts

被引：10
作者：
Tedeeva, M. A. [1 ]
Kustov, A. L. [1 ,2 ,3 ]
Pribytkov, P. V. [1 ,2 ]
Strekalova, A. A. [3 ]
Kalmykov, K. B. [1 ]
Dunaev, S. F. [1 ]
Kustov, L. M. [1 ,2 ,3 ]
机构：
[1] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119991, Russia
[2] Russian Acad Sci, Zelinsky Inst Organ Chem, Moscow 119334, Russia
[3] Natl Univ Sci & Technol MISiS, Moscow 119049, Russia
来源：
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2021年 / 95卷 / 01期
基金：
俄罗斯基础研究基金会;
关键词：
bimetallic catalysts; metal oxides; silica gel; oxidative propane dehydrogenation; propylene; carbon dioxide; carbon dioxide utilization; diffuse reflectance UV spectroscopy; scanning electron microscopy; XRD; CHROMIUM-OXIDE; OXIDATIVE DEHYDROGENATION; CARBON-DIOXIDE; GALLIUM OXIDE; HYDROGENATION; ALKANES; SILICA; IRON; SPECTROSCOPY; CR-MCM-41;
D O I：
10.1134/S0036024421010295
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：
An analysis is performed of the physicochemical properties of M/SiO2 (M = Fe, Co, and Ni) oxide monometallic and CrM/SiO2 (M = Fe, Co, and Ni) bimetallic catalysts supported on amorphous silica. The catalysts are characterized via TGA, XRD, UV-Vis diffuse reflectance spectroscopy, and SEM. Adding 1 wt % of a second transition metal (Fe, Ni, and Co) to the 3% CrOx/SiO2 chromium oxide catalyst substantially raises the conversion of propane to 64% with a drop in the selectivity towards propylene and formation of methane as a main by-product in the case of nickel. Introducing iron and cobalt raises the selectivity towards propylene to 72% with a drop in the conversion of propane.
引用
收藏
页码：55 / 62
页数：8
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