Co-processing of gas oil and pyrolysis bio-oil in the FCC process. Hydrogen transfer reactions

RICHARD PUJRO; MELISA PANERO; MELISA BERTERO; MARISA FALCO; ULISES SEDRAN

Santa Fe

Workshop; French-Argentinean Workshop on Heterogeneus Catalysis; 2023

Institut de Chimie des Milieux et Matériaux de Poitiers, IC2MP, France e INCAPE

Limitations of conventional oil resources and environmental regulations drive the searchfor renewable energy resources and, recently, bio-oils synthesized from residual biomassesbecame an attractive option in the energy world matrix.Bio-oils come from the thermal degradation (>400 °C) of lignocellulosic biomass in absenceor with very low oxygen concentration. They form complex mixtures of compounds with highoxygen load in its structure [1]. Their use as a fuel provides an essentially neutral CO2 balance,but the high content of oxygenated compounds with acidic nature and the large amounts ofwater [2], require previous treatments to improve their properties.The upgrading of bio-oils by means of catalytic processes to eliminate oxygen andtransform them into transportation fuels is feasible. Their co-processing in fuel production unitssuch as the Fluidized Catalytic Cracking (FCC) process, require knowing the interaction underactual process conditions between hydrocarbons molecules, typical of fossil feedstocks suchas vacuum gas oils, and the oxygenated molecules extensively occurring in bio-oils.It is the objective of this work to study the hydrogen transfer (TH) reactions in thecoprocessing of hydrocarbons and oxygenated compounds under typical conditions of FCC,using model hydrocarbon (tetraline) and oxygenated compounds (aliphatic and aromatic).