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Enhancement of conversion from bio-syngas to higher alcohols fuels over K-promoted Cu-Fe bimodal pore catalysts
Wuhan University, China.
Chinese Academy of Sciences, China.
Chinese Academy of Sciences, China.
Chinese Academy of Sciences, China.
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2017 (English)In: Fuel processing technology, ISSN 0378-3820, E-ISSN 1873-7188, Vol. 159, 436-441 p.Article in journal (Refereed) Published
Abstract [en]

A novel K-promoted Cu-Fe bimodal derived catalyst was designed to optimize the catalytic activity and higher alcohols selectivity in higher alcohols synthesis (HAS). The characterization results indicated that the Cu-Fe bimodal derived catalyst presented the bimodal pore structures. The adding of K promoter increased the BET surface area and promoted the dispersion of Cu and Fe species in the bimodal pores without destroying the bimodal structure, whereas the excessive adding of potassium resulted in easily the aggregation of bimetal active species. Incorporation of moderate K content enhanced the reduction of Cu and Fe species and promoted the formation of active bimetal species for HAS, while the bimodal derived catalyst with excessive K content restrained the reduction of bimetal particles, decreasing the catalytic activity for higher alcohols synthesis. In addition, the gradual increasing of K content in the Cu-Fe bimodal derived catalyst strengthened the interaction of K and bimetal active species, which was combined with the “confinement effect” of bimodal pore structures, shifting product distribution towards C2 + OH.

Place, publisher, year, edition, pages
2017. Vol. 159, 436-441 p.
Keyword [en]
Bimodal pore support, Cu-Fe based catalyst, Higher alcohols synthesis, K promoter
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:miun:diva-30396DOI: 10.1016/j.fuproc.2017.02.010ISI: 000397353800047Scopus ID: 2-s2.0-85013127771OAI: oai:DiVA.org:miun-30396DiVA: diva2:1078605
Note

Available online 1 March 2017

Available from: 2017-03-06 Created: 2017-03-06 Last updated: 2017-06-09Bibliographically approved

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Zhang, Wennan

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