Hydrothermal Conversion in Near-Critical Water – A Sustainable Way of Producing Renewable Fuels

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Abstract

Liquid fuels from biomass will form an essential part of meeting the grand challenges within energy. The need for renewable and sustainable energy sources is triggered by a number of factors; like increase in global energy
demand, depletion of conventional resources, climate issues and the desire for
national/regional energy independence. Especially in marine, aviation and heavy
land transport suitable carbon neutral drop-in fuels from biomass are needed,
since electrification of those is rather unlikely. Hydrothermal conversion (HTC)
of biomass offers a solution and is a sustainable way of converting biomass
feedstocks to valuable bio-crude. HTC is a high pressure and medium temperature thermochemical biomass conversion process and converts aqueous biomasses under sub- or super-critical conditions to a bio-crude similar to fossil crude oil.
This chapter deals with the chemical reaction pathways during hydrothermal
conversion of lignocellulosic biomass and upgrading pathways of bio-crude components with focus on hydrodeoxygenation reactions.
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Liquid fuels from biomass will form an essential part of meeting the grand challenges within energy. The need for renewable and sustainable energy sources is triggered by a number of factors; like increase in global energy
demand, depletion of conventional resources, climate issues and the desire for
national/regional energy independence. Especially in marine, aviation and heavy
land transport suitable carbon neutral drop-in fuels from biomass are needed,
since electrification of those is rather unlikely. Hydrothermal conversion (HTC)
of biomass offers a solution and is a sustainable way of converting biomass
feedstocks to valuable bio-crude. HTC is a high pressure and medium temperature thermochemical biomass conversion process and converts aqueous biomasses under sub- or super-critical conditions to a bio-crude similar to fossil crude oil.
This chapter deals with the chemical reaction pathways during hydrothermal
conversion of lignocellulosic biomass and upgrading pathways of bio-crude components with focus on hydrodeoxygenation reactions.
Original languageEnglish
Title of host publicationNear-critical and Supercritical Water and Their Applications for Biorefineries
EditorsZhen Fang, Chunbao (Charles) Xu
Volume2
PublisherSpringer Science+Business Media
Publication date2014
Pages373-400
Chapter14
ISBN (Print)978-94-017-8922-6
ISBN (Electronic)978-94-017-8923-3
DOI
Publication statusPublished - 2014
Publication categoryResearch
Peer-reviewedYes
SeriesBiofuels and Biorefineries
Volume2
ISSN2214-1537

    Research areas

  • Hydrothermal liquefaction, Lignocellulosic biomass, Upgrading, Hydrodeoxygenation, Supercritical water, Bio-crude
ID: 207945343