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Title: Characterization of upgraded fast pyrolysis oak oil distillate fractions from sulfided and non-sulfided catalytic hydrotreating

We consider catalytic hydroprocessing of pyrolysis oils from biomass which produces hydrocarbons for liquid fuel production. This process requires removal of oxygen and cracking of the heavier molecular weight bio-oil constituents into smaller fragments at high temperatures and pressures under hydrogen. Here, we present in this paper the characterization of a group of five distillate fractions from each of two types of hydroprocessed oils from oak pyrolysis oil: a low oxygen content (LOC, 1.8% O, wet basis) oil and a medium oxygen content (MOC, 6.4% O, wet basis) oil. The LOC oil was generated using a sulfided hydrotreating system consisting of RuS/C and xMoS/Al 2O 3 while the MOC was produced using non-sulfided catalysts, Ru/C and Pd/C. Elemental analysis and 13C NMR (nuclear magnetic resonance) results suggest that the distillate fractions from both oils become more aromatic/unsaturated as they become heavier. Carbonyl and carboxylic groups were found in the MOC light fractions, while phenols were present in the heavier fractions for both MOC and LOC. Paraffin, iso-paraffin, olefin, naphthene, aromatic (PIONA) analysis of the light LOC fraction shows a predominance of paraffins with a minor amount of olefins. Sulfur analysis showed the comparative concentration of sulfur in the different fractionsmore » as well as the surprising similarity in content in some sulfided and non-sulfided fractions. Our results can be used to direct future research on refinery integration and production of value-added product from specific upgraded oil streams.« less
ORCiD logo [1] ;  [1] ;  [2] ;  [2] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [2] ;  [1] ;  [1]
  1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  2. National Renewable Energy Lab. (NREL), Golden, CO (United States)
Publication Date:
Report Number(s):
Journal ID: ISSN 0016-2361; PII: S0016236117303277
Grant/Contract Number:
AC05-76RL01830; AC36-08GO28308; AC36-08-GO28308
Accepted Manuscript
Journal Name:
Additional Journal Information:
Journal Volume: 202; Journal Issue: C; Journal ID: ISSN 0016-2361
Research Org:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States); National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Bioenergy Technologies Office (EE-3B)
Country of Publication:
United States
09 BIOMASS FUELS; fast pyrolysis; catalytic upgrading; PIONA; simulated distillation; oxygen content; biofuels; sulfur; sulfided and non-sulfided catalysts; distillate fractions; hydrotreating; pyrolysis; upgrading; hydroprocessing; distillation
OSTI Identifier:
Alternate Identifier(s):
OSTI ID: 1358685; OSTI ID: 1397651