Engineering aspects of hydrothermal pretreatment: From batch to continuous operation, scale-up and pilot reactor under biorefinery concept

[Display omitted] •Engineering aspects of hydrothermal pretreatment are presented.•Hydrothermal pretreatment stage plays an important role in the biorefinery concept.•Hydrothermal pretreatment and their effect on biomass structure.•Operation mode in batch and continuous of hydrothermal pretreatment...

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Bibliographic Details
Published in:Bioresource technology 2020-03, Vol.299, p.122685-122685, Article 122685
Main Authors: Ruiz, Héctor A., Conrad, Marc, Sun, Shao-Ni, Sanchez, Arturo, Rocha, George J.M., Romaní, Aloia, Castro, Eulogio, Torres, Ana, Rodríguez-Jasso, Rosa M., Andrade, Liliane P., Smirnova, Irina, Sun, Run-Cang, Meyer, Anne S.
Format: Article
Language:English
Subjects:
Autohydrolysis
Bioeconomy
Biomass
Cellulose
Chemical Fractionation
Engineering
Hydrolysis
Lignin
Liquid Hot Water
Pilot Plant
Science & Technology
Severity parameter
Steam
Steam Explosion
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Summary:[Display omitted] •Engineering aspects of hydrothermal pretreatment are presented.•Hydrothermal pretreatment stage plays an important role in the biorefinery concept.•Hydrothermal pretreatment and their effect on biomass structure.•Operation mode in batch and continuous of hydrothermal pretreatment are discuses. Different pretreatments strategies have been developed over the years mainly to enhance enzymatic cellulose degradation. In the new biorefinery era, a more holistic view on pretreatment is required to secure optimal use of the whole biomass. Hydrothermal pretreatment technology is regarded as very promising for lignocellulose biomass fractionation biorefinery and to be implemented at the industrial scale for biorefineries of second generation and circular bioeconomy, since it does not require no chemical inputs other than liquid water or steam and heat. This review focuses on the fundamentals of hydrothermal pretreatment, structure changes of biomass during this pretreatment, multiproduct strategies in terms of biorefinery, reactor technology and engineering aspects from batch to continuous operation. The treatise includes a case study of hydrothermal biomass pretreatment at pilot plant scale and integrated process design.
ISSN:0960-8524
0960-8524
1873-2976
DOI:10.1016/j.biortech.2019.122685