摘要
厌氧发酵产甲烷是生物质秸秆利用的方式之一。为了使生物质资源在厌氧发酵过程中得到有效的利用,对其进行预处理是非常有必要的。以能源草为原料,对其在稀硫酸预处理条件下的特性进行了初步的研究。研究结果显示,随着预处理温度的升高、预处理时间的延长及酸浓度(质量分数)的增加,能源草水解产生得到的总还原糖量不断增加;预处理温度是对能源草水解产还原糖影响最大的因素,其次是酸浓度,最后是预处理时间;本文所设计的实验中,在预处理温度75℃、预处理时间96 min及酸浓度1.75%时获得最大值为779 mg的总还原糖量。
Anaerobic fermentation of methane is one ofbiomass straw utilization methods. In order to make biomass resource effectively used by anaerobic fermentation, it is necessary to pretreat the biomass straw. In this paper, the characteristics of energy grass under the condition of dilute sulfuric acid pretreatment were studied. The results show that as the pretreatment temperature, pretreatment time and acid concentration increased, the total amount of reducing sugar produced by hydrolysis of energy grass increased. The pretreatment temperature was the most important factor affecting the hydrolysis of energy grass, followed by acid concentration and pretreatment time. In this research, a maximum total reducing sugar of 779 mg was obtained under the condition of 75 ℃, 96 min and 1.75 %.
出处
《能源研究与管理》
2017年第4期34-37,共4页
Energy Research and Management
基金
国家自然科学基金项目(21567009)
江西省科学院科研开发项目(2015-YYB-06
2015-XTPH1-06
2017-YCXY-04)
江西省新能源发展专项"生物质能源高效转化及提纯关键技术研究与实验平台建设"资助项目
关键词
能源草
稀硫酸预处理
预处理温度
预处理时间
酸浓度
energy grass
dilute sulfuric acid pretreatment
pretreatment temperature
pretreatment time
acid concentration
