Journal
CATALYSTS
Volume 11, Issue 11, Pages -Publisher
MDPI
DOI: 10.3390/catal11111321
Keywords
syngas conversion; KCoMoS2; carbon support material; supported transition metal sulfide catalysts; ethanol synthesis
Categories
Funding
- RFBR [19-53-60002]
- NRF SA [118919]
Ask authors/readers for more resources
The study found that KCoMoS2 catalyst supported on activated carbon has higher alcohol selectivity and yield at high temperatures, especially producing the highest ethanol yield at the highest conversion studied. Coating alumina with carbon can increase alcohol selectivity, but it leads to a decrease in CO conversion yield of alcohol for activated carbon-supported catalysts.
KCoMoS2 was supported on various carbon support materials to study the support effect on synthesis gas conversion. Next to two activated carbons with high micropore volume, a traditional alumina (gamma-Al2O3) support and its carbon coated form (CCA) were studied for comparison. Coating alumina with carbon increases the selectivity to alcohols, but the AC-supported catalysts show even higher alcohol selectivities and yields, especially at higher temperatures where the conversions over the AC-supported catalysts increase more than those over the gamma-Al2O3-based catalysts. Increasing acidity leads to decreased CO conversion yield of alcohols. The two activated-carbon-supported catalysts give the highest yield of ethanol at the highest conversion studied, which seems to be due to increased KCoMoS2 stacking and possibly to the presence of micropores and low amount of mesopores.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available