玉米芯糖化水解及发酵法生物产氢  

Saccharification hydrolysis of corn cob and bio-hydrogen production by anaerobic fermentation

作　　者：张茂林[1] 李领川[1] 沈晓武[1] 樊耀亭[1] 侯红卫[1] 任保增[2] 

机构地区：[1]郑州大学化学系,河南郑州450052 [2]郑州大学化工学院,河南郑州450001

出　　处：《化工学报》2009年第2期465-470,共6页CIESC Journal

基　　金：国家自然科学基金项目(90610001;20871106);国家重点基础研究发展计划项目(2009CB220005;2006CB708407);高等学校博士学科点专项科研基金项目(20070459007);教育部郑州大学211工程资助课题~~

摘　　要：The effects of acid hydrolysis pretreatment of corn cob on saccharification efficiency and fermentation bio-hydrogen production were investigated by orthogonal test design.The hydrolysis pretreatment of corn cob with dilute sulfuric acid was essential for adequately converting substrate into soluble saccharides and bio-hydrogen.The experimental results showed that acid hydrolysis pretreatment of corn cob was found most effective at hydrolysis temperature of 115℃,sulfuric acid concentration of 1.0%,hydrolysis time of 1.5 h and solid-liquid mass ratio 1∶10,in which both maximum saccharification efficiency of 0.5433 g·(g TVS)-1 and bio-hydrogen yield of 85.8 ml H2·(g TVS)-1 were observed.In addition,the mechanisms of degrading corn cob by acid hydrolysis and hydrogen fermentation were also discussed by means of X-ray diffraction(XRD)analysis and crystallinity calculation.The effects of acid hydrolysis pretreatment of corn cob on saccharification efficiency and fermentation bio-hydrogen production were investigated by orthogonal test design. The hydrolysis pretreatment of corn cob with dilute sulfuric acid was essential for adequately converting substrate into soluble saccharides and bio-hydrogen. The experimental results showed that acid hydrolysis pretreatment of corn cob was found most effective at hydrolysis temperature of 115℃, sulfuric acid concentration of 1.0%, hydrolysis time of 1.5 h and solid-liquid mass ratio 1 ： 10, in which both maximum saccharification efficiency of 0. 5433 g· （g TVS）^-1 and bio-hydrogen yield of 85.8 ml H2 · （g TVS）^-1 were observed. In addition, the mechanisms of degrading corn cob by acid hydrolysis and hydrogen fermentation were also discussed by means of X-ray diffraction （XRD） analysis and crystallinity calculation.

关 键 词：玉米芯 酸水解 发酵 生物产氢 

分 类 号：X712[环境科学与工程—环境工程] TK91[动力工程及工程热物理]