DOI: 10.1016/j.jcou.2015.10.003
Scopus记录号: 2-s2.0-84946737132
论文题名: Kinetics of CO2 methanation over Ru/γ-Al2O3 and implications for renewable energy storage applications
作者: Duyar M.S. ; Ramachandran A. ; Wang C. ; Farrauto R.J.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2015
卷: 12 起始页码: 27
结束页码: 33
语种: 英语
英文关键词: CO2 hydrogenation
; Eley-Rideal mechanism
; Kinetics
; Ru/γ-Al2O3
; Thermal analysis
Scopus关键词: Activation energy
; Aluminum
; Atmospheric pressure
; Chemical activation
; Digital storage
; Enzyme kinetics
; Hydrogenation
; Kinetics
; Thermoanalysis
; Thermogravimetric analysis
; Differential reactors
; Eley-Rideal mechanism
; Hydrocarbon product
; Preexponential factor
; Rate equations
; Reaction orders
; Renewable energy storages
; Synthetic natural gas
; Carbon dioxide
英文摘要: Kinetics of CO2 hydrogenation over a 10% Ru/γ-Al2O3 catalyst were investigated using thermogravimetric analysis and a differential reactor approach at atmospheric pressure and 230-245 °C. The data is consistent with an Eley-Rideal mechanism where H2 gas reacts with adsorbed CO2 species. Activation energy, pre-exponential factor and reaction orders with respect to CO2, H2, CH4, and H2O were determined to develop an empirical rate equation. Methane was the only hydrocarbon product observed during CO2 hydrogenation. The activation energy was found to be 66.1 kJ/g-mole CH4. The reaction order for H2 was 0.88 and for CO2 0.34. Product reaction orders were essentially zero. This work is part of a larger study related to capture and conversion of CO2 to synthetic natural gas. © 2015 Published by Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52948
Appears in Collections: 影响、适应和脆弱性
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Recommended Citation:
Duyar M.S.,Ramachandran A.,Wang C.,et al. Kinetics of CO2 methanation over Ru/γ-Al2O3 and implications for renewable energy storage applications[J]. Journal of CO2 Utilization,2015-01-01,12