Mixed Acid-catalyzed Hydrolysis (MACH) of Waste Distiller's Grains (WDG) for Production of Fermentable Sugar

doi:10.4028/www.scientific.net/AMM.295-298.1768

	Mixed Acid-catalyzed Hydrolysis (MACH) of Waste Distiller's Grains (WDG) for Production of Fermentable Sugar
	Ren, Haiwei1 ; Li, Jinping2 ; Zhang, Fei1
	2013
会议名称	PROGRESS IN ENVIRONMENTAL PROTECTION AND PROCESSING OF RESOURCE, PTS 1-4
会议录名称	PROGRESS IN ENVIRONMENTAL PROTECTION AND PROCESSING OF RESOURCE, PTS 1-4
卷号	295-298
页码	1768-+
出版地	KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
出版者	TRANS TECH PUBLICATIONS LTD
摘要	Waste distiller's grains (WDG),a co-product of brewing industry, was an abundant source of biomass that could be hydrolyzed to yield fermentation sugar for the production of fuel ethanol. In this study, hydrolysis of WDG using mixed acid as catalysts was examined with the indices of the concentration of reducing sugar and furfural. The structural characteristics of WDG before and after acid treatment were also discussed by means of SEM, FTIR and XRD. The results indicate that there are 59.32g.L-1 reducing sugar under the conditions of 100 degrees C, solid-liquid ratio of 1:12 g.L-1, acid concentrations of 2.0% and time of 120 min, with the conversions rate of 77.38% and 62.50% for hemicelluloses and cellulose, respectively. SEM photographs show that the structural modifications after acid treatment are pronounced in comparison to that of WDG, which present a rigid and compact morphology. A lot of large irregular pores with different sizes and shapes are formed and the structures are also severely distorted resulting in the increasing surface exposure and porosity. Instrumental analyses with FUR and XRD indicate that the strength of characteristic peaks for corresponding typical functional groups of each component are changed compared with the feedstock, and there is an increase of the crystallinity index when WDG is subjected to the MACH treatment.
关键词	waste distiller's grains (WDG) acid-catalyzed hydrolysis structural characteristics reducing sugar furfural acidic hydrolysis residues (AHR)
DOI	10.4028/www.scientific.net/AMM.295-298.1768
收录类别	CPCI
资助项目	National Science-technology Support Plan of China[2011BAD15B03] ; Spark Program of China Ministry of Science and Technology[2010GA860004] ; Support Program for Youth Innovative Talents of Gansu[09-0165] ; Hongliu Project for Elitist of Lanzhou University of Technology[Q201101] ; Hongliu Project for Young Teachers Cultivation of Lanzhou University of Technology[201207]
语种	英语
WOS研究方向	Engineering ; Environmental Sciences & Ecology ; Mining & Mineral Processing
WOS类目	Engineering, Environmental ; Engineering, Petroleum ; Environmental Sciences ; Mining & Mineral Processing
WOS记录号	WOS:000320828201017
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	会议论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/36789
专题	生命科学与工程学院能源与动力工程学院党委组织部（党校、帮扶办）
通讯作者	Ren, Haiwei
作者单位	1.Lanzhou Univ Technol, Sch Life Sci & Engn, Lanzhou, Peoples R China 2.Lanzhou Univ Technol, Sch Energy & Power Engn, Lanzhou, Peoples R China
第一作者单位	生命科学与工程学院
通讯作者单位	生命科学与工程学院
推荐引用方式 GB/T 7714	Ren, Haiwei,Li, Jinping,Zhang, Fei. Mixed Acid-catalyzed Hydrolysis (MACH) of Waste Distiller's Grains (WDG) for Production of Fermentable Sugar[C]. KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND:TRANS TECH PUBLICATIONS LTD,2013:1768-+.