煤和生物质共热解产气特性分析煤和生物质共热解产气特性分析学院动力与能源工程学院专业环境工程班级6404301学号200604043022姓名李新伟指导教师刘耀鑫负责教师刘耀鑫沈阳航空航天大学2010年6月沈阳航空航天大学毕业设计（论文）PAGEIII摘要我国是世界铬盐生产大国，年产量已超过16万吨，然而在其生产过程中产生大量含铬废渣。全国每年新排放铬渣约60万吨，历年累积堆存铬渣近400万吨。铬渣中含有0.3~1.5%可溶性cr(VI)，经降雨和地表水的冲刷，cr(VI)进入周围土壤和地下水，对环境造成严重污染，目前我国受cr(VI)严重污染的土壤达1250多万吨。铬渣堆场己经列为我国土壤污染重点治理对象。我们国家目前急需修复铬渣污染土壤的关键技术。关键词：铬渣，土壤铬污染，TheAnalysisofGasProducingCharacteristicsonCo-pyrolysisofCoalandBiomassAbstractWiththeshortageoffossilfuelsandsevereenvironmentalpollution,biomassasaclean,storableandtransmittablerenewableenergyresource,hasbeenattachedtogreatattentionaroundtheworld.Itisimportantforourcountrytostudyontheco-pyrolysisofcoalandbiomasswhilebiomassenergycanbeusedeffectively,andreducepollutioncausedbycoalcombustionbecauseoftheloseofcoalburning.Thestudyfocusesontheco-pyrolysisofcoalandbiomassbyusingaself-fixedbed.Majorgasproducingcharacteristicsfromtheco-pyrolysiswereanalyzedbygaschromatographicanalysis.Itmeasuredtheeffectsofmixedratioofbiomass,catalysttypeandamountofcatalystonthegasproductionrateandcompositionsaboutH2,COandCH4.Intheexperiments,weselectedheatingendtemperatureis900℃,DHC-32andCaCl2ascatalystswhichis5%,10%ofthesamplerespectively,andusinggascollectingbagstocollectedgasindifferenttemperaturerangesof400-550℃,600-750℃and800-900℃.Theresultsshowthatindifferenttemperatureranges,thegascompositionsofH2,COandCH4changedwithdifferentmixedratioofbiomass.Andcatalystcanpromotethegasproducingofco-pyrolysis,therearelargechangesingascompositionsindifferenttemperaturerangesfordifferentgas.Keywords:Coal;Biomass;Co-pyrolysis;GasProducingCharacteristics目录TOC\t"标题_谢辞及参考文献,1,标题_附录,1,第2级标题,2,第3级标题,3,第1级标题,1"1绪论PAGEREF_Toc1449211.1引言PAGEREF_Toc961811.2铬及铬渣的危害PAGEREF_Toc840211.2.1铬的危害PAGEREF_Toc412211.2.2铬渣及其危害PAGEREF_Toc2684421.3铬渣的综合利用.........................................................................................................1.31铬渣的解毒机理.......................................................