Aravind Ganesan, Olivier Rezazgui, Jimmy Barco Burgos, Patrice J. Mangin, Simon Barnabé
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引用次数: 0
Abstract
Lignocellulosic biomass residues from Quebec's forests, such as branches and logging residues, can be thermochemically converted into hydrocarbons-rich renewable fuels, offering a sustainable alternative to fossil oil in transportation. Integrated Hydropyrolysis and Hydroconversion (IH2) has emerged as a promising biorefinery technology for transforming diverse biomass feedstocks into bio-oil with properties akin to petroleum, achieving approximately 45 % carbon conversion and 27 wt% bio-oil yield. Optimal conditions for catalytic fast hydropyrolysis (CFHP) include temperatures of 400–450 °C, hydrogen pressures of 20–30 bar, and biomass heating rates of 100–500 °C/min. For the catalytic hydroconversion (CHC) stage, lower temperatures of 250–400 °C with similar hydrogen pressures are beneficial. To enhance bio-oil quality and yield, feed particle sizes below 1 mm are recommended for enhanced heat transfer. While clean hydrogen for IH2 could be produced from electrolysis and biomass, an alternative co-CFHP process using hydrogen-rich bio-based solvents, UEO, and waste plastics can mitigate the need for external hydrogen, high pressures, and complex setups. This can be operated with or without an optional hydrotreatment stage based on required product specifications. The results highlight some potential catalyst alternatives to TMS like TMO, TMP, TMN, and TMC that could improve deoxygenation efficiency and reduce associated challenges. Carbonaceous supports like biochars can replace conventional Al2O3 and achieve better performance w.r.t coking, surface functionalities, metal dispersibility, and sensitivity to deoxygenation by-products. Additionally, fluidized bed reactors are suggested for their scalability and effectiveness in facilitating consistent reactions. Overall, this study underscores the viability of IH2 and identifies critical areas for further research to achieve demonstration-scale feasibility.
期刊介绍:
Biomass & Bioenergy is an international journal publishing original research papers and short communications, review articles and case studies on biological resources, chemical and biological processes, and biomass products for new renewable sources of energy and materials.
The scope of the journal extends to the environmental, management and economic aspects of biomass and bioenergy.
Key areas covered by the journal:
• Biomass: sources, energy crop production processes, genetic improvements, composition. Please note that research on these biomass subjects must be linked directly to bioenergy generation.
• Biological Residues: residues/rests from agricultural production, forestry and plantations (palm, sugar etc), processing industries, and municipal sources (MSW). Papers on the use of biomass residues through innovative processes/technological novelty and/or consideration of feedstock/system sustainability (or unsustainability) are welcomed. However waste treatment processes and pollution control or mitigation which are only tangentially related to bioenergy are not in the scope of the journal, as they are more suited to publications in the environmental arena. Papers that describe conventional waste streams (ie well described in existing literature) that do not empirically address ''new'' added value from the process are not suitable for submission to the journal.
• Bioenergy Processes: fermentations, thermochemical conversions, liquid and gaseous fuels, and petrochemical substitutes
• Bioenergy Utilization: direct combustion, gasification, electricity production, chemical processes, and by-product remediation
• Biomass and the Environment: carbon cycle, the net energy efficiency of bioenergy systems, assessment of sustainability, and biodiversity issues.