摘要
研究了玉米秸秆制备微晶纤维素的预水解乙醇法制浆工艺,对预水解的保温温度、保温时间以及加酸量,乙醇法制浆的保温时间及加酸量进行了研究。研究结果表明:预水解的最佳工艺为,液比1:6,升温时间30min,保温时间120min,水解温度160℃,加酸量1%;乙醇法制浆的最佳工艺为,乙醇溶液(配比为乙醇:水=6:4),液比1:6,60min内升温达160℃后装锅,继续升温到达最高温度195℃,乙酸用量8%,保温时间60min。
The technology of microcrystalline cellulose prepared from corn stalk with prehydrolysis and ethanol process was studied including the pulping temperature,temperature holding time and acid dosage of prehydrolysis.The results show that the optimum conditions for prehydrolysis are liquid ratio 1：6,heating time 30min,holding time 120min,hydrolysis temperature 160℃,sulfuric acid 1%;optimum conditions for ethanol pulping process are ethanol solution（ratio of ethanol to water being 6：4）,liquid ratio 1：6,temperature up to 160℃ within 60min,continually to the maximum temperature 195℃,acid content 8%,holding time 1h.
出处
《中华纸业》
CAS
北大核心
2010年第24期20-24,共5页
China Pulp & Paper Industry
基金
陕西省外专局项目"玉米秸秆高值化利用技术(20106100067)"
陕西省13115项目"秸秆无污染分解高值化利用技术(2008ZDKG-43)"资助课题
关键词
微晶纤维素
预水解
乙醇法制浆
MCC
microcrystalline cellulose
prehydrolysis
ethanol pulping
MCC
