芦苇备料废渣制备乙醇同时获得副产品的技术研究  

Study on the Technique of Producing Ethanol and By-product from Reed Preparation Waste

作　　者：张升友[1,2] 冯文英[1,2] 徐明[1,2] 曹瀛戈[1,2] 苏振华[1,2] 张羽[1,2] 

机构地区：[1]中国制浆造纸研究院,北京100102 [2]制浆造纸国家工程实验室,北京100102

出　　处：《造纸科学与技术》2015年第2期96-100,共5页Paper Science & Technology

基　　金："十二五"国家科技支撑计划课题(2011BAC11B02);制浆造纸国家工程实验室基金项目

摘　　要：以制浆造纸厂固体废弃物芦苇湿法备料废渣为原料,发酵制备生物乙醇为主线,同时可得到副产品低聚木糖和粗木素。结果表明,1吨的芦苇备料废渣经过球磨碱预处理、纤维素酶解,并在发酵条件为酵母菌用量1%、时间24h的条件下可以制得151kg的生物乙醇;同时其发酵残液中的半纤维素经过半纤维素酶解和脱色、脱盐精制可得到127.5kg的饲料级低聚木糖产品;从发酵残渣可制得350kg的粗木素产品。另外球磨碱预处理阶段产生的碱液可以并入制浆厂的碱回收,回收热源及碱,实现了全组分综合利用。Ethanol and by -products （xylo -oligosaccharides and rough lignin）production were carried out by gen- eral utilization about all of components with reed wet preparation waste as material. The results showed that the yield of ethanol was 151kg/t material after ball milling pretreatment, enzymolysis and fermentation, the yield of by - product of feed grade xylo - oligosaccharides was 127.5kg/t material after purification, and the yield of by - product of rough lignin was 350kg/t material. In addition, alkali extraction of milling pretreatment stage could be incorporated into the alkali recovery to recover heat and alkali. So this could realize all components utilization.

关 键 词：芦苇备料废渣 乙醇 副产品 低聚木糖 粗木素 

分 类 号：TS79[轻工技术与工程—制浆造纸工程]