DOI: 10.1016/j.jcou.2016.10.014
Scopus记录号: 2-s2.0-85006717115
论文题名: The role of catalyst environment on CO2 hydrogenation in a fixed-bed reactor
作者: Bradley M.J. ; Ananth R. ; Willauer H.D. ; Baldwin J.W. ; Hardy D.R. ; DiMascio F. ; Williams F.W.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2017
卷: 17 语种: 英语
英文关键词: Carbon dioxide (CO2)
; GHSV (gas hourly space velocity)
; Kinetics
; Modeling
; Selectivity
Scopus关键词: Carbon
; Carbon dioxide
; Catalysts
; Chemical reactors
; Enzyme kinetics
; Fischer-Tropsch synthesis
; Hydrogenation
; Iron
; Manganese oxide
; Mineral oils
; Minerals
; Models
; Solvents
; Fischer-Tropsch reaction
; Gas hourly space velocities
; Hydrogenation reactions
; Iron manganese oxide
; Iron-based catalyst
; Lower reaction temperature
; Product selectivities
; Reaction temperature
; Catalyst selectivity
英文摘要: Graphical abstract: CO2 hydrogenation using iron-based catalyst coated in start-up solvent. To reduce the negative impact that water formation has on the catalyst environment during CO2 hydrogenation reactions in a fixed-bed reactor, a start-up solvent, (mineral oil) was added to the reactor as a pretreatment. A Macrolite®-supported iron-based catalyst was used as the model catalyst to determine the impact of pretreatment with mineral oil on product selectivity, CO2 conversion, and catalyst stability over a range of reaction temperatures (280°C, 300°C, and 320°C). At the lower reaction temperatures (280°C, 300°C), CO2 conversion and C2-C5+ yield was increased by as much as 17% and 25% respectively by addition of start-up solvent. The characterization of the catalyst showed the formation of an iron manganese oxide phase, in the absence of the start-up solvent. Modeling and kinetic analysis of the data suggested that the start-up solvent decreased oxidation of the catalyst phase by reducing water adsorption, thereby increasing the Fischer-Tropsch reaction rate. This led to an increase in hydrocarbon yield in the presence of mineral oil. © 2016. 资助项目: U.S. Naval Research Laboratory
; Office of Naval Research
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52816
Appears in Collections: 影响、适应和脆弱性
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Recommended Citation:
Bradley M.J.,Ananth R.,Willauer H.D.,et al. The role of catalyst environment on CO2 hydrogenation in a fixed-bed reactor[J]. Journal of CO2 Utilization,2017-01-01,17