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Title: Conversion of Loblolly pine biomass residues to bio-oil in a two-step process: Fast pyrolysis in the presence of zeolite and catalytic hydrogenation

Journal Article · · Industrial Crops and Products
 [1];  [2]; ORCiD logo [3];  [4]; ORCiD logo [5]
  1. Fujian Agriculture and Forestry Univ., Fuzhou (China); Bangladesh Council of Scientific and Industrial Research, Dhaka (Bangladesh)
  2. Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning (China)
  3. Univ. of Tennessee Inst. of Agriculture, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  4. Fujian Agriculture and Forestry Univ., Fuzhou (China); Univ. of New Brunswick, Fredericton NB (Canada)
  5. Fujian Agriculture and Forestry Univ., Fuzhou (China); Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning (China)

In this work, Loblolly pine biomass residue was converted to bio-oil in a two-step process, consisting of 1) fast pyrolysis in the presence of zeolite ZSM-5 as a catalyst to produce pyrolysis oil, 2) hydrogenation of pyrolysis oil using formic acid as the hydrogen source in presence of Ru/activated carbon catalyst. Pyrolysis oils were analyzed by 13C, 31P and HSQC-NMR and the results revealed that the zeolite-induced catalytic fast pyrolysis process led to effective demethoxylation, producing more catechol and p-hydroxy-phenyl hydroxyl groups in the bio-oils, resulting in a decrease in the methoxyl group content by about 85 % and rich aromatic structures in the pyrolysis oils. The properties of pyrolysis oil with and without zeolite were in the bio-oil range. Hydrogenated pyrolysis oil showed that 79 % of the aromatic protons are eliminated and 87 % of protons are aliphatic in nature, with no oxygen attached to the α-carbon.

Research Organization:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE; National Key Research and Development Program of China; Foundation of Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control
Grant/Contract Number:
AC05-00OR22725; EE0003144
OSTI ID:
1619018
Alternate ID(s):
OSTI ID: 1778319
Journal Information:
Industrial Crops and Products, Vol. 148, Issue C; ISSN 0926-6690
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 15 works
Citation information provided by
Web of Science

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