R. Beims, S. Bertoli, V. Botton, L. Ender, E. Simionatto, H. Meier, V. Wiggers
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CO-PROCESSING OF THERMAL CRACKING BIO-OIL AT PETROLEUM REFINERIES
The aim of this study is to investigate the viability of implementing bio-oil co-processing in an oil refinery. The physical properties of bio-oil obtained from the thermal cracking of triglycerides are compared to those of petroleum. Although the oil characteristics are similar, bio-oil requires upgrading to reduce its high acid index to levels acceptable for its processing at the refinery. The hydrotreatment unit of the refinery can deal with the olefin and oxygen contents of the upgraded bio-oil. This study indicates that bio-oil can be co-refined in the distillation, fluid catalytic cracking, and delayed coking units. Thus, the co-processing of bio-oil appears to be a promising approach to increasing the use of bio-oil. However, some challenges related to the technical issues need to be studied in greater depth.
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