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Energies 2017, 10(1), 62; doi:10.3390/en10010062

Investigation of Ethanol Production Potential from Lignocellulosic Material without Enzymatic Hydrolysis Using the Ultrasound Technique

1
School of Mechanical and Electrical Engineering, The University of Southern Queensland, Toowoomba 4350, QLD, Australia
2
Centre for Crop Health, The University of Southern Queensland, Toowoomba 4350, QLD, Australia
3
Institute for Resilient Regions (IRR), University of Southern Queensland, Springfield 4300, QLD, Australia
4
Chemical Engineering Department, The University of Technology, Baghdad 10066, Iraq
*
Author to whom correspondence should be addressed.
Academic Editor: Shusheng Pang
Received: 25 November 2016 / Revised: 27 December 2016 / Accepted: 30 December 2016 / Published: 6 January 2017
View Full-Text   |   Download PDF [3047 KB, uploaded 6 January 2017]   |  

Abstract

This research investigates ethanol production from waste lignocellulosic material (sugarcane bagasse). The bagasse was first pretreated using chemicals and ultrasound techniques. These pretreatment techniques were applied separately and combined. The pretreated bagasse was then fermented anaerobically for biofuel production without enzymatic hydrolysis. The results showed higher ethanol production than those reported in the literature. The maximum ethanol production of 820 mg/L was achieved with a combination of ultrasound (60 amplitude level, 127 W) and acid (3% H2SO4 concentration). The combination of two-step pretreatment such as an ultrasound (50 amplitude level, 109 W) with acid (3% H2SO4 concentration) and then an ultrasound with alkaline (23% NaOH concentration) generated 911 mg/L of ethanol. View Full-Text
Keywords: biofuel; lignocellulose; biomass; bioethanol; pre-treatment; bagasse biofuel; lignocellulose; biomass; bioethanol; pre-treatment; bagasse
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Kandasamy, M.; Hamawand, I.; Bowtell, L.; Seneweera, S.; Chakrabarty, S.; Yusaf, T.; Shakoor, Z.; Algayyim, S.; Eberhard, F. Investigation of Ethanol Production Potential from Lignocellulosic Material without Enzymatic Hydrolysis Using the Ultrasound Technique. Energies 2017, 10, 62.

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