Agricultural Waste Management for Bioethanol Production

Agricultural Waste Management for Bioethanol Production

Miss Priyanka, Dileep Kumar, Uma Shankar, Anurag Yadav, Kusum Yadav
Copyright: © 2019 |Pages: 33
DOI: 10.4018/978-1-5225-8903-7.ch019
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Abstract

This chapter contends that bioethanol has received the most attention over other fuels due to less emission of greenhouse gases and production from renewable sources. It is mainly produced from sugar containing feedstocks. Since feedstocks are utilized as food for humans, its consumption in bioethanol production creates a food crisis for the entire world. Bioethanol derived from agriculture waste, which is most abundant at global level, is the best option. Agriculture wastes contain lignin, cellulose and hemicelluloses which creates hindrances during conversion to ethanol. Pretreatment of agriculture wastes remove lignin, hemicelluloses and then enzymatically hydrolyzed into sugars. Both pentose and hexose sugars are fermented to bioethanol. There are still various problems for developing an economically feasible technology but a major one is the resistance to degradation of the agricultural material. Use of two or more pretreatment methods for delignification and the use of genetically modified agricultural biomass can be developed for economically feasible ethanol production.
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History Of Bioethanol

In ancient time, bioethanol had been prepared from sugar containing feedstocks using fermentation process. In 12-14th century, pure ethanol production started using distillation. Ethanol was mostly used for making the medical drugs and color pigments for painting in the middle ages. In the 12th century, starch containing feedstock was first used for ethanol production in Ireland. In 19th century, the high bioethanol production at industrial level was started due to the low cost of distilling process (Roehr et al., 2000).

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