DOI: 10.1016/j.jcou.2015.10.002
Scopus记录号: 2-s2.0-84946921879
论文题名: Effect of silica and alumina promoters on co-precipitated Fe-Cu-K based catalysts for the enhancement of CO2 utilization during Fischer-Tropsch synthesis
作者: Rafati M. ; Wang L. ; Shahbazi A.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2015
卷: 12 起始页码: 34
结束页码: 42
语种: 英语
英文关键词: Biofuel
; Catalyst promoter
; CO2 utilization
; Fischer-Tropsch
; Syngas
Scopus关键词: Alumina
; Aluminum
; Biofuels
; Carbon dioxide
; Catalyst activity
; Catalysts
; Fischer-Tropsch synthesis
; Hydrocarbons
; Liquid methane
; Silica
; Synthesis (chemical)
; Synthesis gas
; Catalyst promoters
; CO hydrogenation
; Co-precipitated
; Fischer Tropsch
; Hydrogen contents
; Liquid hydrocarbons
; Promoted catalysts
; Syn-gas
; Catalyst selectivity
英文摘要: Silica and alumina were used as structural promoters to increase the catalytic activity of a co-precipitated Fe-Cu-K catalyst for the CO2 and CO hydrogenation during Fischer-Tropsch (FT) synthesis. The doubly-promoted Fe-Cu-K-Si-Al catalyst achieved higher CO and CO2 conversions than the Fe-Cu-K catalyst and singly-promoted Fe-Cu-K-Al and Fe-Cu-K-Si catalysts. The CO and CO2 conversions of the syngas with 54% H2/10% CO/29% CO2/7% N2 over the doubly-promoted catalyst were 88.3% and 25.2%, respectively, compared to 81.8% and 18.5% for the Fe-Cu-K catalyst. In this case, the C5+ selectivity of the doubly-promoted catalyst was 71.9%, which was slightly lower than 75.5% for the Fe-Cu-K catalyst. The CO2 was converted to hydrocarbons using the doubly-promoted catalyst when the CO2/(CO + CO2) ratio was higher than 0.35 for H2-balanced syngas at H2/(2CO + 3CO2) = 1.0, and 0.5 for H2-deficient syngas at H2/(2CO + 3CO2) = 0.5. The increase of hydrogen content in the syngas increased the methane selectivity at the expense of decrease in the liquid hydrocarbon selectivity. © 2015 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/52953
Appears in Collections: 影响、适应和脆弱性
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Recommended Citation:
Rafati M.,Wang L.,Shahbazi A.. Effect of silica and alumina promoters on co-precipitated Fe-Cu-K based catalysts for the enhancement of CO2 utilization during Fischer-Tropsch synthesis[J]. Journal of CO2 Utilization,2015-01-01,12