Enhanced anaerobic digestion of corn stover by thermo-chemical pretreatment  

作　　者：Wang Fang Niu Weisheng Zhang Andong Yi Weiming 

机构地区：[1]School of Agricultural and Food Engineering,Shandong University of Technology,Shandong Research Center of Engineering and Technology for Clean Energy,Zibo 255049,Shandong Province,China [2]College of Engineering,Shenyang Agricultural University,Shenyang 110866,Liaoning Province,China

出　　处：《International Journal of Agricultural and Biological Engineering》2015年第1期84-90,共7页国际农业与生物工程学报（英文）

基　　金：the National Natural Science Foundation of China(Grant No.51276103);the National High-tech R&D Program of China(Grant NO.2012AA101808)for financial support.

摘　　要：In order to solve the problem of lignocellulose degraded speedily and efficiently in anaerobic digestion,the thermo-chemical pretreatment was applied to enhance biogas production from corn stover.Corn stover was thermo-chemical pretreated with a fluidized bed pyrolysis reactor at 180℃,200℃ and 220℃,respectively.Lignin degradations during pretreatment were 15.07%,32.57% and 33.31%,respectively.The Scanning Electron Microscope(SEM)images and Fourier Transform Infrared Spectroscopy(FTIR)spectra confirm that the thermo-chemical pretreatment can change the structure of corn stover and make lignin content decrease.The thermo-chemical pretreated corn stover was digested using a 2-L fermentation reactor.Experimental results showed thermo-chemical pretreatment could improve biodegradability and enhance biogas production.The highest total biogas production was 23319 mL for 20 d which was 10.0% higher than that of the untreated corn stover.

关 键 词：biogas production corn stover anaerobic digestion fast pyrolysis thermo-chemical PRETREATMENT 

分 类 号：F42[经济管理—产业经济]