DOI: 10.1016/j.jcou.2018.01.023
Scopus记录号: 2-s2.0-85041899822
论文题名: Oxy-fuel combustion based enhancement of the tri-reforming coupled methanol production process for CO2 valorization
作者: Dwivedi A. ; Gudi R. ; Biswas P.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2018
卷: 24 起始页码: 376
结束页码: 385
语种: 英语
英文关键词: CO2 mitigation
; CO2 valorization
; Methanol production
; Oxy-fuel combustion
; Tri-reforming
Scopus关键词: Carbon dioxide
; Combustion
; Computer software
; Electrolysis
; Fossil fuels
; Hydrogen
; Hydrogen production
; Methanol
; Nitrogen
; Air combustion system
; CO2 mitigation
; CO2 valorization
; Combustion exhausts
; Methanol production
; Oxyfuel combustion
; Power generation systems
; Reactive components
; Fuels
英文摘要: Capture and conversion of carbon dioxide from fossil fuel power generation systems is an important consideration. Tri-reforming of combustion exhausts (i.e. flue gas) with methane, which avoids the capture step, so as to produce synthesis gas for methanol production, has been proposed as a viable CO2 valorization alternative for conventional air-combustion systems. However, the presence of nitrogen that is not a reactive component results in increased reactor sizes and decreased efficacy of the tri-reforming based process. In this paper, we explore the use of tri-reforming with an oxy-fuel combustion process, where the nitrogen content of the combustion exhaust gas is considerably reduced, and therefore a carbon dioxide enriched feed is utilized for the tri-reforming coupled methanol production process. Also, to support the oxy-fuel combustion process, we propose utilization of water electrolysis as an oxygen source, while also utilizing the generated hydrogen in the downstream methanol production. The main contributions of this paper are therefore (i) the proposition of combining oxy-fuel combustion with the tri-reforming coupled methanol production process to mitigate the above drawback, and (ii) utilization of water electrolysis as a source of oxygen and an evaluation of the impact of the generated hydrogen on the CO2 valorization potential of the process. These two propositions have been implemented as process improvements on the conventional tri-reforming coupled methanol process. The resultant processes have been simulated using Aspen Plus V8.4, optimized and compared in this paper to justify their efficacy. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111969
Appears in Collections: 气候减缓与适应
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作者单位: Department of Chemical Engineering, Indian Institute of Technology, PowaiMumbai 400 076, India; Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, St. Louis, MO 63130, United States
Recommended Citation:
Dwivedi A.,Gudi R.,Biswas P.. Oxy-fuel combustion based enhancement of the tri-reforming coupled methanol production process for CO2 valorization[J]. Journal of CO2 Utilization,2018-01-01,24