Liquid hot water as sustainable biomass pretreatment technique for bioenergy production: A review

In recent years, lignocellulosic biomass has emerged as one of the most versatile energy sources among the research community for the production of biofuels and value-added chemicals. However, biomass pretreatment plays an important role in reducing the recalcitrant properties of lignocellulose, leading to superior quality of target products in bioenergy production. Among existing pretreatment techniques, liquid hot water (LHW) pretreatment has several outstanding advantages compared to others including minimum formation of monomeric sugars, significant removal of hemicellulose, and positive environmental impacts; however, several constraints of LHW pretreatment should be clarified. This contribution aims to provide a comprehensive analysis of reaction mechanism, reactor characteristics, influencing factors, techno-economic aspects, challenges, and prospects for LHW-based biomass pretreatment. Generally, LHW pretreatment could be widely employed in bioenergy processing from biomass, but circular economy-based advanced pretreatment techniques should be further studied in the future to achieve maximum efficiency, and minimum cost and drawbacks. © 2021 Elsevier Ltd

Authors
Chen W.-H.1, 2 , Nižetić S.3 , Sirohi R.4, 5 , Huang Z.6 , Luque R. 8, 9 , M.Papadopoulos A.10 , Sakthivel R.11 , Phuong Nguyen X. , Tuan Hoang A.
Journal
Bioresource Technology
Publisher
Elsevier Ltd
Language
English
Status
Published
Link
External link
DOI
10.1016/J.BIORTECH.2021.126207
Number
126207
Volume
344
Year
2022
Organizations
  • 1 Department of Aeronautics and Astronautics, National Cheng Kung University, Tainan, 701, Taiwan
  • 2 Research Center for Smart Sustainable Circular Economy, Tunghai University, Taichung, 407, Taiwan
  • 3 University of Split, FESB, Rudjera Boskovica 32, Split, 21000, Croatia
  • 4 Centre for Energy and Environmental Sustainability, Lucknow, Uttar Pradesh 226 029, India
  • 5 Department of Chemical and Biological Engineering, Korea University, Seoul, South Korea
  • 6 State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, China
  • 7 Institute of Engineering, Ho Chi Minh city University of Technology (HUTECH), Ho Chi Minh city, Viet Nam
  • 8 Departamento de Química Orgánica, Universidad de Cordoba, Campus de Rabanales, Edificio Marie Curie, Ctra. Nnal. IV-A, Km. 396, Cordoba, E-14014, Spain
  • 9 Peoples Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Str., Moscow, 117198, Russian Federation
  • 10 Department of Mechanical Engineering, Aristotle University Thessaloniki, Greece
  • 11 Department of Mechanical Engineering, Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Coimbatore, India
  • 12 PATET Research Group, Ho Chi Minh City University of Transport, Ho Chi Minh city, Viet Nam
Keywords
Bioenergy; Biomass; Economic analysis; Liquid hot water pretreatment; Reaction mechanism; Technical characteristics
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