DOI: 10.1016/j.jcou.2014.06.004
Scopus记录号: 2-s2.0-84905576640
论文题名: Thermodynamic analysis of methane reforming with CO2, CO 2 + H2O, CO2 + O2 and CO2 + air for hydrogen and synthesis gas production
作者: Freitas A.C.D. ; Guirardello R.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2014
卷: 7 起始页码: 30
结束页码: 38
语种: 英语
英文关键词: Entropy maximization
; Gibbs energy minimization
; Hydrogen production
; Methane reforming reactions
; Synthesis gas production
Scopus关键词: Entropy
; Gibbs free energy
; Hydrogen production
; Methane
; Nonlinear programming
; Optimization
; Synthesis gas
; Thermoanalysis
; Entropy maximization
; Equilibrium compositions
; Equilibrium temperatures
; Gibbs energy minimization
; Hydrogen and synthesis gas
; Methane reforming
; Synthesis gas production
; Thermodynamic evaluation
; Carbon dioxide
英文摘要: The main objective of this work is performing a thermodynamic evaluation of methane reforming with CO2, CO2 + H2O, CO 2 + O2 and CO2 + air. These evaluations were carried out by Gibbs energy minimization, in conditions of constant pressure and temperature, and entropy maximization, at constant pressure and enthalpy, methods, to determine the equilibrium compositions and equilibrium temperatures, respectively. Both cases were treated as optimization problems (using non-linear programming formulation), satisfying the restrictions imposed by atom balance and non-negativity of number of moles. The GAMS®23.1 software and the CONOPT solver were used in the resolution of the proposed problems. All calculations performed presented a low computational time (less than 1 s). The calculated results were compared with previously published experimental and simulated data with a good agreement between them for all systems. The H2 and syngas production were favored at high temperature and low pressure conditions. The addition of H2O or O2 proved to be an effective way to reduce the coke formation in the systems. The CO2 reforming presented endothermic behavior, but the addition of O2 or air reduced this trend and in some conditions autothermal behavior was observed. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53025
Appears in Collections: 影响、适应和脆弱性
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Recommended Citation:
Freitas A.C.D.,Guirardello R.. Thermodynamic analysis of methane reforming with CO2, CO 2 + H2O, CO2 + O2 and CO2 + air for hydrogen and synthesis gas production[J]. Journal of CO2 Utilization,2014-01-01,7