Mixed alcohol synthesis from syngas on sulfided K-Mo-based catalysts: Influence of support acidity

Journal Article · Fri May 01 04:00:00 EDT 1998 · Industrial and Engineering Chemistry Research

DOI:https://doi.org/10.1021/ie970792e· OSTI ID:624342

Bian, G Z; Fu, Y L ^[1]; Fan, L; Fujimoto, Kaoru ^[2]

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1. Univ. of Science and Technology of China, Hefei, Anhui (China). Dept. of Chemical Physics
2. Univ. of Tokyo (Japan). Dept. of Applied Chemistry

The mixed alcohols were synthesized at different reaction temperatures, different GHSVs, and different pressures over K-MoO{sub 3} supported on different supports such as {gamma}-Al{sub 2}O{sub 3} and SiO{sub 2}. The ammonia adsorption over the catalysts was studied using temperature program desorption (TPD). The ethanol decomposition was studied over these catalysts, which has shown that the decomposition activity was higher for the catalyst calcined at 500 C than for the catalyst calcined at 800 C. However, the activity for ethanol decomposition was low over a K-Mo-unsupported sample. The activity and selectivity of the catalysts increased in the order of K-MoO{sub 3}/{gamma}-Al{sub 2}O{sub 3} < K-MoO{sub 3}/SiO{sub 2} < unsupported K-Mo. If the oxidized supported catalysts were recalcined at 800 C, the yields of CO{sub 2} and hydrocarbons were suppressed and the yields of mixed alcohols were remarkably enhanced. However, the unsupported K-Mo has not shown any effect.

• OSTI ID: 624342
• Journal Information: Industrial and Engineering Chemistry Research, Journal Name: Industrial and Engineering Chemistry Research Journal Issue: 5 Vol. 37; ISSN IECRED; ISSN 0888-5885
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
03 NATURAL GAS
10 SYNTHETIC FUELS
ALCOHOLS
ALUMINIUM OXIDES
CATALYST SUPPORTS
CATALYTIC EFFECTS
COAL
DECOMPOSITION
ETHANOL
MOLYBDENUM OXIDES
NATURAL GAS
POTASSIUM
SILICON OXIDES
SYNTHESIS
SYNTHESIS GAS