农业工程学报2011，Vol.27Issue(9)：282-286,5.DOI:10.3969/j.issn.1002-6819.2011.09.049
响应面法优化玉米秸秆蒸汽爆破预处理条件
Optimizing steam explosion pretreatment conditions of corn stalk by response surface methodology
摘要
Abstract
In the research fields of lignocellulosic materials, their high-concentration reducing sugars production is an important foundation for their energy conversion. Based on Box-Behnken design, maintenance pressure time, steam pressure and ammonium acid carbonate concentration were chosen as the three important factors with three levels. The process conditions of corn stalk steam explosion pretreatment were optimized by response surface methodology, and a mathematical model of a second order quadratic equation was developed for reducing sugar concentration. The results showed that the optimized technological parameters were as follows: maintenance pressure time 227 s, steam pressure 3.08 Mpa, ammonium acid carbonate concentration. 11%. Corn stalk steam explosion pretreatment was saccharified under these conditions for 48h, its reducing sugar concentration was up to 60.04 g/L, and saccharification rate reached 83.7% of its theoretical value(71.7 g/L). The results verified the validity of the mathematical model. This study demonstrates that steam explosion pretreatment can significantly improve reducing sugar concentration .关键词
蒸汽/爆破/数学模型/预处理/玉米秸秆/响应面Key words
steam/explosions/mathematical models/pretreatment/corn stalk/response surface methodology分类
农业科技引用本文复制引用
任天宝,马孝琴,徐桂转,宋安东,张百良..响应面法优化玉米秸秆蒸汽爆破预处理条件[J].农业工程学报,2011,27(9):282-286,5.基金项目
国家农业科技成果转化资金资助项目(2006G B2D000173):国家自然科学基金资助项目(70741032) （2006G B2D000173）
