Universiti Teknologi Malaysia Institutional Repository

Bioethanol production from sago pith waste using microwave hydrothermal hydrolysis accelerated by carbon dioxide

Thangavelu, Saravana Kannan and Ahmed, Abu Saleh and Ani, Farid Nasir (2014) Bioethanol production from sago pith waste using microwave hydrothermal hydrolysis accelerated by carbon dioxide. Applied Energy, 128 . pp. 277-283. ISSN 0306-2619

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1016/j.apenergy.2014.04.076

Abstract

Bioethanol production from sago pith waste (SPW) using microwave hydrothermal hydrolysis accelerated by carbon dioxide was studied. The structural change in the SPW after hydrolysis, ethanol purity after fermentation, and distillation were investigated. Energy consumption for microwave hydrothermal hydrolysis was evaluated. A maximum of 43.8% theoretical glucose and 40.5% theoretical ethanol yield were obtained. The ethanol yield coefficient obtained in fermentation was 0.47 (g. ethanol per g. glucose) which was 15.6. g. ethanol per 100. g dry SPW. It was also discovered that the lowest energy consumption occurred when energy input was fixed at 108. kJ (900. W for 2. min), amounting to 33. kJ and 69. kJ to produce one gram glucose after hydrothermal hydrolysis and one gram ethanol after fermentation, respectively. The developed technique for SPW resulted in higher energy saving compared to previous techniques in the absence of enzymes, acid or base catalyst.

Item Type:Article
Uncontrolled Keywords:bioethanol, carbon dioxide, energy efficiency, microwave hydrothermal hydrolysis, sago pith waste
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Mechanical Engineering
ID Code:52004
Deposited By: Siti Nor Hashidah Zakaria
Deposited On:01 Feb 2016 03:52
Last Modified:30 Nov 2018 07:00

Repository Staff Only: item control page