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Production of Liquid Fuel from Rice Husk and Sawdust

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dc.contributor.advisor Rahman, Prof. Dr. A. N. M. Mizanur
dc.contributor.author Islam, Md. Kamrul
dc.date.accessioned 2019-10-02T11:04:02Z
dc.date.available 2019-10-02T11:04:02Z
dc.date.copyright 2019
dc.date.issued 2019-05
dc.identifier.other ID 1513504
dc.identifier.uri http://hdl.handle.net/20.500.12228/544
dc.description This thesis is submitted to the Department of Energy Science and Engineering, Khulna University of Engineering & Technology in partial fulfillment of the requirements for the degree of Master of Science in Energy Science and Engineering, May 2019. en_US
dc.description Cataloged from PDF Version of Thesis.
dc.description Includes bibliographical references (pages 56-62).
dc.description.abstract Energy is the key input to economic growth of a nation and there is a close relation between accessibility of energy and escalation in the quality of nation. As conventional energy sources are limited and will diminish in future after complete consumption, so it is the high time to deal with the renewable and non-conventional energy sources. The necessity of liquid fuel is not only in the transport sector rather it is required in industrial and power sector. Production of liquid fuel from ligno-cellulosic material is one of the sources of renewable energy. As Bangladesh is an agricultural country, rice husk and sawdust are the common sources among all sources of cellulosic material available in the country. In the present study, fermentation method is used to produce liquid fuel from rice husk and sawdust. For fermentation process simultaneous saccharification and fermentation (SSF) process being used. In the process, husk and sawdust was pretreated to neutralize it and then saccharification was carried out with cellulase enzyme with different proportion where temperature was maintained at around 37oC for 84 hours. Fermentation reagents were prepared by adding yeast, peptone and dextrose for yeast inoculums. Saccharified slurry was clutched to fermentation in a mixture of reagents and fermentation medium. The process was carried out for one day in aerobic condition and then next three days in anaerobic condition at a temperature of 35oC. After fermenting clear supernatant is obtained from centrifugation and then gas chromatography (GC) was performed on the product for estimation of ethanol. In the experimentation rice husk and enzyme mixture was added at the ratios of 2.5:1, 3:1 and 3.5:1 respectively. The yields of ethanol are respectively 9.55% (v/w), 8.73% (v/w) and 6.74% (v/w) from respective fermented liquid broth. Sawdust and enzyme ratio of 2.5:1 provide a very low about 1.23% (v/w) of ethanol. This shows that sawdust not prospective but rice husk is a prospective source of extraction of liquid fuel by fermentation. en_US
dc.description.statementofresponsibility Md. Kamrul Islam
dc.format.extent 62 pages
dc.language.iso en_US en_US
dc.publisher Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh en_US
dc.rights Khulna University of Engineering & Technology (KUET) thesis/dissertation/internship reports are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission.
dc.subject Liquid Fuel en_US
dc.subject Rice Husk en_US
dc.subject Sawdust en_US
dc.title Production of Liquid Fuel from Rice Husk and Sawdust en_US
dc.type Thesis en_US
dc.description.degree Master of Science in Energy Science and Engineering
dc.contributor.department Department of Energy Science and Engineering

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