4种生物质秸秆厌氧消化产甲烷特性研究刘凡1,2,陈冠英1,2,张廷军1,2,马宗虎1,2∗,刘磊1,2,梁雪1,2,赵健1(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)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50d,产甲烷潜力为214.86mL/gVS,远高于其他原料。关键词生物质;秸秆;厌氧消化中图分类号TE09文献标识码A文章编号0517-6611(2023)11-0163-03doi:10.3969/j.issn.0517-6611.2023.11.039开放科学(资源服务)标识码(OSID):StudyonMethaneProductionCharacteristicsofFourKindsofBiomassStrawsbyAnaerobicDigestionLIUFan1,2,CHENGuan-ying1,2,ZHANGTing-jun1,2etal(1.ChinaHuadianEngineeringCo.,Ltd.,Beijing100160;2.NationalEnergyResearchandDevelopmentCenterforEfficientProductionandComprehensiveUtilizationofBiomassGas,Tianjin301700)AbstractFourkindsofbiomassstrawincludingbigtomatostraw,smalltomatostraw,rapestrawandoilwheatstraw,whicharecommoninruralareas,weretakenastheresearchobjects.Thedrymatter,totalorganicmattercontent,ashcontent,pH,conductivity,elementcontentandmethanogenicpotential(BMP)ofstrawwereevaluatedcomprehensively.Theresultsshowedthat:oleiferastrawismoresuitableasrawmaterialforbiogasengineeringfermentation.Thetotalsolidcontentis88.0%,thetotalorganicmattercontentis83.6%,thecarbonelementcontentis38.1%,thenitrogenelementcontentis1.16%,thecarbon-nitrogenratiois32.84,thepHisbiasedtowardsneutral,6.6,andthegasproductionperiodis50days.Themethaneproductionpotentialismuchhigherthanthatofotherfeedstocksas214.86mL/gVS.KeywordsBiomass;Straw;Anaerobicdigestion基金项目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)。作者简介刘凡(1993—),女,河北衡水人,工程师,硕...
