低碳环保与节能减排68节能ENERGYCONSERVATIONNO.012023基于废塑料制取活性炭对煤热解的催化动力学特性卢赵津李建新王永川张培恩缪草褚伊拉张明明(浙大宁波理工学院,浙江宁波315100)摘要:以废塑料与生物质为原料,以K2CO3为活化剂,制取活性炭,并考察活性炭对煤热解的催化效果。结果显示:加入活性炭催化剂的各组在活化能以及失重量的表现上均优于不加入活性炭催化剂的表现。与原料∶活化剂=1∶2的样品相比,加入原料∶活化剂=1∶1的活性炭样品对原煤催化热解的分解率和活化能更优。热解过程中,AC-6表现的性能最好。综合表现方面,AC-1(废塑料∶玉米秸秆∶活化剂=2∶5∶7)表现出最好的特性,失重速率上升最快,与平均值相比上升了21%;活化能表现方面,较平均值下降约18%。关键词:废塑料;活性炭;煤热解;动力学特性中图分类号:X705文献标识码:A文章编号:1004-7948(2023)01-0068-04doi:10.3969/j.issn.1004-7948.2023.01.018CatalytickineticcharacteristicsofactivatedcarbonpreparedfromplasticsforcoalpyrolysisLUZhao-jinLIJian-xinWANGYong-chuanZHANGPei-enMIAOCaoCHUYi-laZHANGMing-mingAbstract:ActivatedcarbonwaspreparedwithwasteplasticandbiomassasrawmaterialsandK2CO3asactivator,andthecatalyticeffectofactivatedcarbononcoalpyrolysiswasinvestigated.Theresultsshowthattheactivationenergyandweightlossofeachgroupwithactivatedcarboncatalystwerebetterthanthosewithoutactivatedcarboncatalyst.Andrawmaterial:activ∶ator=1:1activatedcarbonsampleforrawcoalcatalyticpyrolysiscomparedtorawmaterial:activator=1:2sampleoverallbothinthedecompositionrateandactivationenergyhavebetterperformance.AC-6showedthebestperformanceinthepyrolysisprocess,butAC-1(wasteplastics:cornstraw:activator:ratio=2:5:7)showedthebestcharacteristics,weightlossrateincreasedfastestincreasedby21%comparedwiththeaverage.Theactivationenergydecreasedbyabout18%comparedwiththeaveragevalue.Keywords:wasteplastics;activatedcarbon;coalpyrolysis;dynamiccharacteristics引言随着我国塑料产品的大量使用,废旧塑料产量急剧增加。废旧塑料填埋后不易降解,焚烧废旧塑料对生态环境造成破坏[1]。1900年以来,全球塑料产量急速增加;1950年的塑料产量为200万t,2018年的塑料产量飙升至3.59亿t;2019年底,全球塑...