4种生物质秸秆厌氧消化产甲烷特性研究  

Study on Methane Production Characteristics of Four Kinds of Biomass Straws by Anaerobic Digestion

作　　者：刘凡 陈冠英 张廷军 马宗虎 刘磊 梁雪 赵健 LIU Fan;CHEN Guan-ying;ZHANG Ting-jun(China Huadian Engineering Co.,Ltd.,Beijing 100160;National Energy Research and Development Center for Efficient Production and Comprehensive Utilization of Biomass Gas,Tianjin 301700)

机构地区：[1]中国华电科工集团有限公司,北京100160 [2]国家能源生物燃气高效制备及综合利用技术研发中心,天津301700

出　　处：《安徽农业科学》2023年第11期163-165,共3页Journal of Anhui Agricultural Sciences

基　　金：中国华电集团有限公司重点科技项目(CHDKJ21-01-48);中国华电科工集团有限公司重点科技项目(CHECKJ22-01-19)。

摘　　要：以农村常见的大番茄秸秆、小番茄秸秆、油菜秸秆和油麦秸秆4种生物质秸秆作为研究对象,对秸秆的干物质、总有机质含量、灰分、酸碱度、电导率、元素含量以及产甲烷潜力(BMP)指标进行综合评价分析,为以植物秸秆为原料进行资源化利用提供理论依据和技术支撑。结果表明:油麦秸秆更适合作为沼气工程发酵原料,其总固体含量为88.0%,总有机质含量为83.6%,碳元素含量为38.1%,氮元素含量为1.16%,碳氮比为32.84,酸碱度偏向于中性为6.6,产气周期为50 d,产甲烷潜力为214.86 mL/g VS,远高于其他原料。Four kinds of biomass straw including big tomato straw,small tomato straw,rape straw and oil wheat straw,which are common in rural areas,were taken as the research objects.The dry matter,total organic matter content,ash content,pH,conductivity,element content and methanogenic potential(BMP)of straw were evaluated comprehensively.The results showed that:oleifera straw is more suitable as raw material for biogas engineering fermentation.The total solid content is 88.0%,the total organic matter content is 83.6%,the carbon element content is 38.1%,the nitrogen element content is 1.16%,the carbon-nitrogen ratio is 32.84,the pH is biased towards neutral,6.6,and the gas production period is 50 days.The methane production potential is much higher than that of other feedstocks as 214.86 mL/g VS.

关 键 词：生物质 秸秆 厌氧消化 

分 类 号：TE09[石油与天然气工程]