Recent advances and challenges of inter-disciplinary biomass valorization by integrating hydrothermal and biological techniques

RENEWABLE & SUSTAINABLE ENERGY REVIEWS

卷:135

Article

Song, Bing^1,2  Lin, Richen^3,4  Lam, Chun Ho⁵  Wu, Hao²  Tsui, To-Hung²  Yu, Yun⁶ 

[1] Scion, 49 Sala St,Private Bag 3020, Rotorua 3046, New Zealand

[2] Hong Kong Baptist Univ, Dept Biol, Inst Bioresource & Agr, Kowloon Tong, Hong Kong, Peoples R China

[3] Univ Coll Cork, Environm Res Inst, MaREI Ctr, Cork, Ireland

[4] Univ Coll Cork, Sch Engn, Cork, Ireland

[5] City Univ Hong Kong, Sch Energy & Environm, Kowloon Tong, 83 Tat Chee Ave, Hong Kong, Peoples R China

[6] Curtin Univ, Western Australian Sch Mines Minerals Energy & Ch, Discipline Chem Engn, GPO Box U1987, Perth, WA 6845 USA

关键词: Biomass valorization;    Hydrothermal treatment;    Enzymatic hydrolysis;    Anaerobic digestion;    Inter-disciplinary biorefinery;   

DOI  :  10.1016/j.rser.2020.110370

来源: Elsevier

【 摘 要 】

Biomass valorization for the production of various value-added biochemicals and biofuels plays a significant role in modern biorefineries/bioenergy towards a climate neutrality future. Among the developed valorization techniques for biorefining, hydrothermal and biological treatments have been demonstrated to valorize raw biomass materials or upgrade biorefinery intermediate products to afford respectably desired product yields. From the perspective of both green chemistry and circular bioeconomy, whether the inter-disciplinary approach could achieve complete biomass valorization with balanced energy and extra profits remains questionable. This review is presented to provide an overview of the opportunities combining both hydrothermal and biological techniques for biomass valorization. Combinations including (1) hydrothermal pretreatment followed by biological valorization (such as enzymatic hydrolysis, fermentation, anaerobic digestion, or composting) and (2) hydrothermal valorization of substrates generated from biological techniques (such as enzymatic hydrolysis pretreated food waste, or anaerobic digestion produced digestate) for the production of biochar, biocrude or syngas are comprehensively reviewed. The recent advances regarding treatment conditions, synergies between hydrothermal and biological techniques, and optimal performances are summarized and compared. Assessment of the energy balance and economic feasibility of different integrated options reported in previous studies is also compared. Finally, challenges and perspectives for advancing integrated hydrothermal and biological techniques toward complete biomass valorization are concluded.

【 授权许可】

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