Effects of Feed Composition and Feed Impurities in the Catalytic Conversion of Syngas to Higher Alcohols over Alkali-Promoted Cobalt–Molybdenum Sulfide | Zendy

Jakob Munkholt Christensen | Zendy; Peter Arendt Jensen | Zendy; Anker Degn Jensen | Zendy

Open Access

Effects of Feed Composition and Feed Impurities in the Catalytic Conversion of Syngas to Higher Alcohols over Alkali-Promoted Cobalt–Molybdenum Sulfide

Author(s) -

Jakob Munkholt Christensen,

Peter Arendt Jensen,

Anker Degn Jensen

Publication year - 2011

Publication title -

industrial and engineering chemistry research

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.878

H-Index - 221

eISSN - 1520-5045

pISSN - 0888-5885

DOI - 10.1021/ie200235e

Subject(s) - syngas , catalysis , chemistry , sulfur , methanol , sulfide , syngas to gasoline plus , cobalt , molybdenum , hydrogen sulfide , inorganic chemistry , alkali metal , hydrogen production , organic chemistry , steam reforming

Alkali-promoted cobalt–molybdenum sulfide is a potential catalyst for the conversion of syngas into higher alcohols. This work is an investigation of how the feed composition influences the behavior of the sulfide catalyst. In a sulfur-free syngas the production of higher alcohols is observed to be optimal with an equimolar mixture of CO and H2 in the feed, while the methanol production benefits from an increasing hydrogen content in the feed. The influence of NH3 and H2O in the syngas feed has also been investigated. Ammonia (741 ppmv) in the feed is observed to cause a general and largely reversible deactivation of the catalyst. Operation with elevated water levels in the syngas feed (4.7–13.4 mol %) is observed to cause a deactivation of the catalyst, and it is especially the chain growth that is affected.

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