Back to Search
Start Over
Catalytic upgrading of bio-tar over a MgNiMo/activated charcoal catalyst under supercritical ethanol conditions
- Source :
- Catalysis Today. 316:237-243
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- Upgrading of bio-tar derived from fast pyrolysis of sawdust was performed over activated charcoal supported nickel-based catalysts (Ni/AC, NiMo/AC, MgNiMo/AC) under supercritical ethanol conditions. The catalytic activities of the catalysts was compared with those of representative bio-oil upgrading catalysts (Ru/AC, HZSM-5). The MgNiMo/AC catalyst exhibited the highest catalytic performance among the catalysts with a decrease of oxygen content in bio-tar from 31.3 wt% up to 10.8 wt% and the yield of liquid product (75 wt%). The effects of reaction temperature (275–350 °C), reaction time (0–120 min) and bio-tar to ethanol ratio (1/9–4/6) were also studied over the MgNiMo/AC catalyst. In addition, reaction of vanillin which is one of major compounds present in bio-tar was carried out under the same bio-tar upgrading conditions in order to understand the production mechanism of phenolic chemicals.
- Subjects :
- 010405 organic chemistry
Chemistry
Tar
General Chemistry
010402 general chemistry
01 natural sciences
Catalysis
Supercritical fluid
0104 chemical sciences
Activated charcoal
visual_art
Yield (chemistry)
visual_art.visual_art_medium
Organic chemistry
Sawdust
Pyrolysis
Deoxygenation
Nuclear chemistry
Subjects
Details
- ISSN :
- 09205861
- Volume :
- 316
- Database :
- OpenAIRE
- Journal :
- Catalysis Today
- Accession number :
- edsair.doi...........985302ceaf723882e80e529021094355