May 13, 2025
Journal Article
From biomass to fuel blendstocks via catalytic fast pyrolysis and hydrotreating: an evaluation of carbon efficiency and fuel properties for three pathways
Abstract
Biomass was upgraded to fuel blendstocks via catalytic fast pyrolysis (CFP) followed by hydrotreating using three approaches: ex situ CFP with a zeolite catalyst (HZSM-5), ex situ CFP with a hydrodeoxygenation catalyst (Pt/TiO2) and co-fed hydrogen, and in situ CFP with a low-cost mixed metal oxide catalyst (red mud). Each approach was evaluated using a common pine feedstock and the same hydrotreating procedure. The oxygen contents in the CFP oils ranged from 17 to 28 wt% on a dry basis and the carbon efficiencies for the CFP processes were in the range of 28 to 38%. The residual oxygen was reduced toPublished: May 13, 2025