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Title: Catalytic conversion of syngas to mixed alcohols over Zn-Mn promoted Cu-Fe based catalyst

Zn-Mn promoted Cu-Fe based catalyst was synthesized by the co-precipitation method. Mixed alcohols synthesis from syngas was studied in a half-inch tubular reactor system after the catalyst was reduced. Zn-Mn promoted Cu-Fe based catalyst was characterized by SEM-EDS, TEM, XRD, and XPS. The liquid phase products (alcohol phase and hydrocarbon phase) were analyzed by GC-MS and the gas phase products were analyzed by GC. The results showed that Zn-Mn promoted Cu-Fe based catalyst had high catalytic activity and high alcohol selectivity. The maximal CO conversion rate was 72%, and the yield of alcohol and hydrocarbons were also very high. Cu (111) was the active site for mixed alcohols synthesis, Fe2C (101) was the active site for olefin and paraffin synthesis. The reaction mechanism of mixed alcohols synthesis from syngas over Zn-Mn promoted Cu-Fe based catalyst was proposed. Here, Zn-Mn promoted Cu-Fe based catalyst can be regarded as a potential candidate for catalytic conversion of biomass-derived syngas to mixed alcohols.
Authors:
 [1] ;  [1] ;  [1] ;  [2]
  1. Mississippi State Univ., Mississippi State, MS (United States)
  2. Mississippi State Univ., Mississippi State, MS (United States); China Univ. of Petroleum, Beijing (People's Republic of China)
Publication Date:
OSTI Identifier:
1079498
Report Number(s):
GO8602509
Journal ID: ISSN 0926-860X; PII: S0926860X12002049
Grant/Contract Number:
FG36-06GO86025
Type:
Accepted Manuscript
Journal Name:
Applied Catalysis. A, General
Additional Journal Information:
Journal Volume: 429-430; Journal Issue: C; Journal ID: ISSN 0926-860X
Publisher:
Elsevier
Research Org:
Mississippi State Univ., Mississippi State, MS (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY mixed alcohols synthesis; syngas; Zn-Mn promoted; Cu- Fe based catalyst; co-precipitation