Integration of Biomass Catalytic Fast Hydropyrolysis and Co-processing of Straight Run Gas Oil Via Hydrotreating

Co-processing bio-oil with petroleum fractions in existing petrochemical refining facilities is a promising approach for the low-carbon transition of the petrochemical industry. However, the high oxygen content, viscosity, and acidity of crude bio-oil limit its compatibility with conventional refining infrastructure. In this study, we reported a strategy for co-processing high-quality bio-oil, obtained via catalytic fast hydropyrolysis (CFHP) with straight-run gas oil (SRGO). A cost-effective metal oxide catalyst, NiMo/TiO2, was selected as an optimal catalyst achieving an optimal balance between deoxygenation efficiency and carbon yield. CFHP was also conducted in a continuous-flow reactor, yielding 40.08 C% yield of C4+ products while maintaining a low oxygen content of 7.34 wt%. The resulting bio-oil with improved quality can be blended with SRGO at a high ratio of 15 vol% without compromising catalyst performance during co-processing.