Journal
ULTRASONICS SONOCHEMISTRY
Volume 72, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.ultsonch.2020.105455
Keywords
Biomass; Value-added products; Ultrasound applications; Waste valorization; Sonochemical process intensification; Biomass conversion
Categories
Funding
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico - Brazil (CNPq) [313786/2019-4]
- Fundacao de Amparo a Pesquisa do Estado do Rio Grande do Sul - Brazil (FAPERGS) [17/2551-0000960-6]
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior - Brazil (CAPES) [001]
- University of Turin
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The review discusses the increasing application of ultrasound energy in converting lignocellulosic biomass and waste materials into value-added products. It covers theoretical aspects, challenges, and perspectives, highlighting the impact of ultrasound on the fragmentation, selectivity, and yield of conversion treatments. Additionally, it explores the synergistic effects between ultrasound and alternative green solvents for industrial applications.
Nowadays, the application of ultrasound (US) energy for assisting the lignocellulosic biomass and waste materials conversion into value-added products has dramatically increased. In this sense, this review covers theoretical aspects, promising applications, challenges and perspectives about US and its use for biomass treatment. The combination of US energy with a suitable reaction time, temperature and solvent contributes to the destruction of recalcitrant lignin structure, allowing the products to be used in thermochemical and biological process. The main mechanisms related to US propagation and impact on the fragmentation of lignocellulosic materials, selectivity, and yield of conversion treatments are discussed. Moreover, the synergistic effects between US and alternative green solvents with the perspective of industrial applications are investigated. The present survey analysed the last ten years of literature, studying challenges and perspectives of US application in biorefinery. We were aiming to highlight value-added products and some new areas of research.
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