Catalytic upgrading of bio-tar over a MgNiMo/activated charcoal catalyst under supercritical ethanol conditions

被引：20

作者：

Lee, Jin-Hyuk ^{[1
,2
]}

Lee, In-Gu ^{[1
]}

Jeon, Wonjin ^{[1
]}

Ha, Jong-Hyeon ^{[1
,2
]}

Lee, Kwan-Young ^{[2
]}

机构：

[1] Korea Inst Energy Res, Biomass & Waste Energy Lab, 152 Gajeong Ro, Daejeon 34129, South Korea

[2] Korea Univ, Dept Chem & Biol Engn, 145 Anam Ro, Seoul 02841, South Korea

来源：

CATALYSIS TODAY | 2018年 / 316卷

关键词：

Bio-tar; Deoxygenation; Supercritical ethanol; MgNiMo/AC catalyst; FAST PYROLYSIS; HYDROGEN-PRODUCTION; FATTY-ACIDS; OIL; BIOMASS; DEOXYGENATION; NI; HYDRODEOXYGENATION; FUEL; CONVERSION;

D O I：

10.1016/j.cattod.2017.09.016

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

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 degrees 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.

引用

页码：237 / 243

页数：7