DOI: 10.1016/j.jcou.2018.07.003
Scopus记录号: 2-s2.0-85049759307
论文题名: Numerical investigation of CO2 valorization via the steam gasification of biomass for producing syngas with flexible H2 to CO ratio
作者: Salaudeen S.A. ; Acharya B. ; Heidari M. ; Arku P. ; Dutta A.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2018
卷: 27 起始页码: 32
结束页码: 41
语种: 英语
英文关键词: CO2 utilization
; Equilibrium modelling
; H2/CO ratio
; Steam gasification
; Syngas
Scopus关键词: Carbon dioxide
; Computer software
; Gasification
; Hydroformylation
; Synthesis gas
; Synthesis gas manufacture
; Equilibrium concentration
; Equilibrium modelling
; H2/CO ratio
; Numerical investigations
; Petrochemical process
; Process parameters
; Steam gasification
; Syn-gas
; Fischer-Tropsch synthesis
英文摘要: This work presents a numerical investigation into CO2 valorization via the gasification of poplar wood. It is aimed at determining an optimum gasification condition for enhancing the production of syngas with a flexible H2 to CO molar ratio (H2/CO), which is essential in many petrochemical processes. The research is performed by simulation in ASPEN Plus, where steam and CO2 are fed as co-gasifying agents. The equilibrium concentrations of the product gas are obtained, and the H2/CO as well as the heating value of the resulting syngas are quantified. It is found that the inclusion of CO2 as a co-gasifying agent promotes CO evolution through the Boudouard reaction. However, it reduces H2 concentration, and consequently decreases the H2/CO. Furthermore, the effects of some process parameters have been studied in this work. It is observed that H2/CO reduces with a rise in temperature, increases with increasing CO2 to biomass ratio (CBR), and shows no significant change with pressure. Results further show that methanol synthesis from syngas can be achieved at temperatures close to 660 °C, while oxo-synthesis requires a higher temperature. A CBR of around 0.6 in the present work would be an optimum value for Fischer-Tropsch synthesis to achieve a H2/CO of 2:1, but the CBR should be lower for processes requiring a lower H2/CO like acetic acid formation and oxo-synthesis. © 2018 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/111812
Appears in Collections: 气候减缓与适应
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作者单位: Mechanical Engineering Program, School of Engineering, University of Guelph, Guelph, ON N1G 2W1, Canada; School of Sustainable Design Engineering, University of Prince Edward Island, 550 University Avenue, Charlottetown, PE C1A 4P3, Canada
Recommended Citation:
Salaudeen S.A.,Acharya B.,Heidari M.,et al. Numerical investigation of CO2 valorization via the steam gasification of biomass for producing syngas with flexible H2 to CO ratio[J]. Journal of CO2 Utilization,2018-01-01,27