Pretreatment of rapeseed straw by soaking in aqueous ammonia
Pretreatment of rapeseed straw by soaking in aqueous ammonia
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DOI：
10.1007/s00449-011-0606-z
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发表时间：
2012-01-01
影响因子：
3.8
通讯作者：
Park, Don-Hee
中科院分区：
文献类型：
--
作者：
Kang, Kyeong Eop;Jeong, Gwi-Taek;Park, Don-Hee
木质纤维素生物质的预处理对于生物燃料的生产已经得到关注。本研究采用氨水浸泡预处理的方法对生物质进行预处理，以生产乙醇。采用响应面法中心组合设计，从催化剂浓度、预处理时间和预处理温度等方面优化油菜秸秆预处理条件。氨水预处理油菜秸秆的最佳工艺条件为：氨水浓度19.8%，预处理时间14.2 h，预处理温度69.0 A ℃。在实验条件下，使用这些最佳因子值，获得了60.7%的理论葡萄糖，该值完全在模型预测的范围内。SEM结果表明，SAA预处理后油菜秸秆的比表面积和孔径增大，酶消化率提高。
Pretreatment of lignocellulosic biomass has gained attention for production of biofuels. In this study, pretreatment by soaking in aqueous ammonia was adopted for pretreatment of biomass for ethanol production. A central composite design of response surface methodology was used for optimization of the pretreatment condition of rapeseed straw, with respect to catalyst concentration, pretreatment time, and pretreatment temperature. The most optimal condition for pretreatment of rapeseed straw by soaking in aqueous ammonia was 19.8% of ammonia water, 14.2 h of pretreatment time, and a pretreatment temperature of 69.0 A degrees C. Using these optimal factor values under experimental conditions, 60.7% of theoretical glucose was obtained, and this value was well within the range predicted by the model. SEM results showed that SAA pretreatment of rapeseed straw resulted in increased surface area and pore size, as well as enhanced enzymatic digestibility.