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Effect of ultrasound on lignocellulosic biomass as a pretreatment for biorefinery and biofuel applications

Bussemaker, MJ and Zhang, D (2013) Effect of ultrasound on lignocellulosic biomass as a pretreatment for biorefinery and biofuel applications Industrial and Engineering Chemistry Research, 52 (10). pp. 3563-3580.

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Abstract

The conversion of lignocellulosic biomass for biofuels and biorefinery applications is limited due to the cost of pretreatment to separate or access the biomass's three main usable components, cellulose, hemicellulose, and lignin. After pretreatment, each component may be utilized via chemical conversion, hydrolysis, and/or fermentation. In this review we aim first, to identify the current status-quo of knowledge of the parametric effects of ultrasound, second, to evaluate the potential of ultrasound as a pretreatment and fractionation method of lignocellulose, and last, to identify the challenges that this technology faces. Ultrasound produces chemical and physical effects which were both found to augment the pretreatment of lignocellulose via delignification and surface erosion. The magnitudes of these effects are altered when the ultrasonic field is influenced by parameters such as solvent, ultrasonic frequency, and reactor geometry and type. Therefore, the implementation of ultrasound for the pretreatment of lignocellulose must consider the variation of ultrasonic influences to capitalize on the key effects of ultrasound. Currently the literature is dominated by low frequency ultrasonic treatment, coupled with alkaline solutions. High frequency ultrasound, oxidizing solutions, and use of combined alternative augmentation techniques show promise for the reduction of energy consumed and synergistic enhancement of ultrasonic treatment. Furthermore, feedstock characteristics, reactor configuration, kinetics, and the ultrasonic environment should be considered. © 2013 American Chemical Society.

Item Type: Article
Authors :
NameEmailORCID
Bussemaker, MJm.bussemaker@surrey.ac.ukUNSPECIFIED
Zhang, DUNSPECIFIEDUNSPECIFIED
Date : 13 March 2013
Identification Number : https://doi.org/10.1021/ie3022785
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 12:57
Last Modified : 17 May 2017 15:07
URI: http://epubs.surrey.ac.uk/id/eprint/837397

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