DOI: 10.1016/j.jcou.2016.05.005
Scopus记录号: 2-s2.0-84971327126
论文题名: Efficient utilization of carbon dioxide in a gas-to-methanol process composed of CO2/steam-mixed reforming and methanol synthesis
作者: Zhang C. ; Jun K.-W. ; Kwak G. ; Lee Y.-J. ; Park H.-G.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2016
卷: 16 起始页码: 1
结束页码: 7
语种: 英语
英文关键词: CO2 utilization
; Gas-to-Methanol
; Greenhouse gas
; Methanol synthesis
Scopus关键词: Computer software
; Energy efficiency
; Greenhouse gases
; Methanol
; Recycling
; Reforming reactions
; Synthesis gas
; Synthesis gas manufacture
; Cu-based catalyst
; Feeding points
; Gas to methanols
; Methanol synthesis
; Process simulation software
; Recycle ratios
; Recycling units
; Reforming units
; Carbon dioxide
英文摘要: Two process models for a carbon-dioxide-utilized gas-to-methanol (GTM) process (CGTM) that primarily produces methanol were developed using the process simulation software Aspen Plus. Both models comprised a reforming unit, a methanol synthesis unit and a recycling unit, with the feeding point of the fresh feed CO2 as the principal configurational difference. In the reforming unit, CO2/Steam-mixed reforming was performed to generate the targeted syngas in flexible compositions. Meanwhile, CO2 hydrogenation was conducted over a Cu-based catalysts in the methanol synthesis unit to directly produce the targeted product, methanol. After methanol synthesis, the unreacted syngas was recycled to the methanol synthesis and reforming units to enhance energy efficiency. The simulation results revealed that both CGTM options can favorably improve the energy efficiency and significantly reduce the total CO2 emissions, compared to a conventional GTM process. The energy efficiency was shown to be highly affected by the recycle ratio and a higher recycle ratio seemed to favorably improve CO2 conversion, enhance energy efficiency, and reduce CO2 emissions. However, the split ratio (recycle-to-reforming unit/total recycle) seems to have little effect on the energy efficiency, and the optimum recycle to the reforming unit was determined to be none. © 2016 Elsevier Ltd. All rights reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52878
Appears in Collections: 影响、适应和脆弱性
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Recommended Citation:
Zhang C.,Jun K.-W.,Kwak G.,et al. Efficient utilization of carbon dioxide in a gas-to-methanol process composed of CO2/steam-mixed reforming and methanol synthesis[J]. Journal of CO2 Utilization,2016-01-01,16