广东化工2023年第4期·44·www.gdchem.com第50卷总第486期高钠煤在气流床干煤粉气化中的应用研究杨建荣，裴林刚，金政伟*(国家能源集团宁夏煤业有限责任公司煤制油分公司，宁夏银川754011)[摘要]高钠煤由于Na2O含量较高，导致其灰熔点较低而影响其直接作为气流床干煤粉气化的原料用煤。本文采用配煤技术对高钠煤灰熔融特性进行调控，利用煤样组成的差异，研究高钠煤作为气流床干煤粉气化工艺原料用煤可行性。实验结果表明：将Mxj和Mnxm煤样按照1∶1进行复配，复配后煤样灰分含量15%，复配煤灰属于典型的玻璃体渣，黏度15~50Pa·S时对应温度为1460~1370℃，处于气流床干煤粉气化炉操作温度范围内，且复配煤样的流动温度和软化温度之间差值为41℃，在工业应用中十分有利于进行气化操控，完全可以满足气流床干煤粉气化原料用煤要求。[关键词]煤灰熔融温度；高钠煤；配煤；气流床干煤粉气化；黏温特性[中图分类号]TQ536[文献标识码]A[文章编号]1007-1865(2023)04-0044-03StudyontheApplicationofHighSodiumCoalinEntrainedFlowDryPulverizedCoalGasificationTechnologyYangJianrong,PeiLingang,JinZhengwei*(CoaltoOilBranchofNingxiaCoalIndustryCo.,Ltd.,ofNationalEnergyGroup,Yinchuan750411,China)Abstract:DuetothehighcontentofNa2Oincoal,theashmeltingpointofhighsodiumcoalislow,whichaffectsitsdirectuseasdrypulverizedcoalgasificationrawmaterial.Thispaperstudiesthefeasibilityofusinghighsodiumcoalasrawmaterialfordrypulverizedcoalentrainmentgasificationprocessbyadjustingthefusibilityofcoalashthroughcoalblendingtechnologyandusingthedifferenceofcoalsamplecomposition.TheexperimentalresultsshowthatMxjandMnxmarecompoundedaccordingto1∶1coal,andtheashcontentis15%aftercompounding.Thecompoundedcoalsamplebelongstotypicalvitreousslag.Whentheviscosityis15~50Pa·S,thecorrespondingtemperatureis1460~1370℃,whichiswithintheoperatingtemperaturerangeoftheentrainedflowdrypulverizedcoalgasifier,andthedifferencebetweentheflowtemperatureandsofteningtemperatureofthemixedcoalsamplesis41℃,whichisveryconducivetogasificationcontrolinindustrialapplications.Itcanfullymeettherequirementsofrawcoalforentrainedflowdrypulverizedcoalgasification.Keywords:ashmeltingtemperature；highsodiumcoal...
