Towards Bio-Crude Refinery Integration: Hydrodeoxygenation and Co-Hydroprocessing with Light Cycle Oil

Athanasios Dimitriadis and Stella Bezergianni ()
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Athanasios Dimitriadis: Chemical Process & Energy Resources Institute—CPERI, Centre for Research and Technology Hellas—CERTH, 6th Km Harilaou-Thermi Road, P.O. Box 60361, 570 01 Thessaloniki, Greece
Stella Bezergianni: Chemical Process & Energy Resources Institute—CPERI, Centre for Research and Technology Hellas—CERTH, 6th Km Harilaou-Thermi Road, P.O. Box 60361, 570 01 Thessaloniki, Greece

Energies, 2024, vol. 17, issue 23, 1-18

Abstract: Hydrothermal liquefaction of solid waste has been gaining more and more attention over the last few years. However, the properties of the HTL product, i.e., biocrude, are limiting its direct utilization. As a result, HTL biocrude upgrading is essential to improve its quality. The main objective of the current research is to study the hydrotreatment stabilization of HTL biocrude, produced from spent coffee grounds, utilizing commercial hydrotreated catalysts, and also to investigate the integration of the stabilized biocrude into a light cycle oil (LCO) hydrotreatment plant for coprocessing to target hybrid fuel production. The results have shown that hydrotreatment is a very promising technology that can successfully remove the oxygen content from raw biocrude by hydrodeoxygenation, decarbonylation and decarboxylation reactions, leading to a stabilized product. The stabilized product can be easily blended with the LCO stream of a typical refinery, leading to the production of jet and diesel boiling range hydrocarbons, favoring at the same time the hydrogen consumption of the process. The findings of this manuscript set the basis for future research targeting the production of renewable advanced biofuels from HTL biocrude from municipal waste.

Keywords: hydrotreatment; hydrothermal liquefaction; biocrude; hybrid fuels (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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