Sugarcane Bagasse Pretreatment Methods for Ethanol Production

Fuel Ethanol Production from Sugarcane Pub Date : 2018-11-05 DOI:10.5772/INTECHOPEN.81656

S. Sabiha-Hanim, Nurul Asyikin Abd Halim

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引用次数: 19

Abstract

Lignocellulosic biomass such as sugarcane bagasse (SCB) is a renewable and abundant source for ethanol production. Sugarcane bagasse is composed of cellulose, hemicellulose, lignin, extractives, and several inorganic materials. Pretreatment methods of SCB are necessary for the successful conversion of SCB to ethanol. Each pretreatment process has a specific effect on the cellulose, hemicellulose, and lignin fraction. The conversion of SCB to ethanol typically consists of four main steps: pretreatment, enzymatic hydrolysis, fermentation, and distillation. Hence, different pretreatment methods should be chosen according to the process design for the following hydrolysis, fermentation, and distillation steps. There are many types of pretreatments such as physical, chemical, physico-chemical, and biological pretreatments. This chapter reviews the chemical and physico-chemical pretreatment methods of SCB which are often used by many research- ers for ethanol production. Different chemical and physico-chemical pretreatment meth ods of SCB are introduced and discussed based on relevance to the sugar yield, lignin removal, and cellulose content after pretreatment.

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蔗渣制备乙醇的预处理方法

木质纤维素生物质，如甘蔗渣(SCB)是一种可再生和丰富的乙醇生产来源。甘蔗渣由纤维素、半纤维素、木质素、萃取物和几种无机材料组成。SCB的预处理方法是SCB成功转化为乙醇的必要条件。每种预处理工艺对纤维素、半纤维素和木质素组分都有特定的影响。SCB转化为乙醇通常包括四个主要步骤:预处理、酶解、发酵和蒸馏。因此，对于接下来的水解、发酵和蒸馏步骤，应根据工艺设计选择不同的预处理方法。预处理有多种类型，如物理预处理、化学预处理、物理化学预处理和生物预处理。本章综述了许多研究人员经常用于乙醇生产的SCB的化学和物化预处理方法。从预处理后糖收率、木质素去除率和纤维素含量的关系出发，介绍了不同的化学和理化预处理方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Fuel Ethanol Production from Sugarcane

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