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.
| Original language | English |
|---|---|
| Pages (from-to) | 237-243 |
| Number of pages | 7 |
| Journal | Catalysis Today |
| Volume | 316 |
| DOIs | |
| Publication status | Published - 2018 Oct 15 |
Bibliographical note
Funding Information:This work was supported by the National Research Council of Science & Technology (NST) grant by the Korea government (MSIP) (No.CAP-16-05-KIMM), Republic of Korea.
Publisher Copyright:
© 2017 Elsevier B.V.
Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
Keywords
- Bio-tar
- Deoxygenation
- MgNiMo/AC catalyst
- Supercritical ethanol
ASJC Scopus subject areas
- Catalysis
- Chemistry(all)