Article pubs.acs.org/EF
Hydrotreating the Organic Fraction of Biomass Pyrolysis Oil to a Refinery Intermediate Richard J. French,* Stuart K. Black, Michele Myers, James Stunkel, Erica Gjersing, and Kristiina Iisa National Bioenergy Center, National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, Colorado 80401, United States S Supporting Information *
ABSTRACT: The effect of the catalyst type, hydroprocessing conditions, and feed preparation on the mild hydrotreating of biomass pyrolytic lignin was examined. Pyrolytic lignin oils were produced by water separation at 1:1 and 3:1 water/oil mass ratios. Hydrotreating was performed in a semi-batch reactor at three severities using sulfided NiMo/Al2O3, Pd/C, and Pt/C catalysts. Over half of the carbon in the pyrolytic lignin could be converted to a low-oxygen (90% volatile matter), low oxygen content (
