| Literature DB >> 24747393 |
Quan Bu1, Hanwu Lei2, Lu Wang1, Yi Wei1, Lei Zhu1, Xuesong Zhang1, Yupeng Liu1, Gayatri Yadavalli1, Juming Tang1.
Abstract
The aim of this study is to explore catalytic microwave pyrolysis of lignin for renewable phenols and fuels using activated carbon (AC) as a catalyst. A central composite experimental design (CCD) was used to optimize the reaction condition. The effects of reaction temperature and weight hourly space velocity (WHSV, h(-1)) on product yields were investigated. GC/MS analysis showed that the main chemical compounds of bio-oils were phenols, guaiacols, hydrocarbons and esters, most of which were ranged from 71% to 87% of the bio-oils depending on different reaction conditions. Bio-oils with high concentrations of phenol (45% in the bio-oil) were obtained. The calorific value analysis revealed that the high heating values (HHV) of the lignin-derived biochars were from 20.4 to 24.5 MJ/kg in comparison with raw lignin (19 MJ/kg). The reaction mechanism of this process was analyzed.Entities:
Keywords: Activated carbon; Catalytic pyrolysis; Lignin; Phenols; Reaction mechanism
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Year: 2014 PMID： 24747393 DOI： 10.1016/j.biortech.2014.03.103
Source DB: PubMed Journal: Bioresour Technol ISSN： 0960-8524 Impact factor: 9.642