草浆黑液半焦与石油焦水蒸气共气化特性

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1、石油学报(石油加工)2015年8月ACTAPETROLEISINICA(PETROLEUMPROCESSINGSECTIoN)第31卷第4期文章编号：1001—8719(2015)04—0897—07草浆黑液半焦与石油焦水蒸气共气化特性王贵金，袁洪友，郭大亮，周肇秋，阴秀丽，吴创之(1．中国科学院广州能源研究所，可再生能源重点实验室，广东广州510640；2．中国科学院大学，北京100039)摘要：采用热重分析仪和管式炉在850~C下进行草浆黑液半焦与石油焦水蒸气共气化实验，并采用气相色谱、X射线衍射和扫描电镜等分析手段，

2、从热失重、气体产物和残余固体特性角度探究了二者在共气化过程中的相互作用规律。结果表明，二者在共气化过程中存在协同效应；与二者单独气化的加权平均相比，其气化反应速率加快，产气热值和碳转化率增大，燃气品质和能源效率得到提高。当石油焦质量分数由25增至75时，协同效应加强，NaCO。对石油焦气化的催化效果以及石油焦对NaCO。损失的抑制作用均愈加显著。当石油焦质量分数为75时，共气化残余固体的熔融现象得以抑制。关键词：黑液；石油焦；共气化中图分类号：TK6文献标识码：Adoi：10．3969／j．issn．1001-8719．2

3、015．04．010SteamCo—gasificatiOnCharacteristicsofWheatStrawBlackLiquorCharandPetroleumCokeWANGGuijin～，YUANHongyou，GUODaliang，ZHOUZhaoqiu，YINXiuli，WUChuangzhi(1．CASKeyLaboratoryofRenewableEnergy，GuangzhouInstituteofEnergyConversion，ChineseAcademyofSciences，Guangzhou5

4、10640，China；2．University0厂ChineseAcademyofSciences，Beijing100039，China)Abstract：ThesteamCO—gasificationexperimentsofthewheatstrawblackliquorcharandpetroleumcokewereconductedinathermogravimetricanalyzerandalaboratory—scaletubefurnaceat85O~C，respectively．Byusingtheg

5、aschromatography，X—raydiffractionandscanningelectronmicroscopeanalyticaltechnologies，theinteractioncharacteristicsofthewheatstrawblackliquorcharandpetroleumcokeinCO—gasificationwereanalyzedbasedonthepropertiesofthermalmassloss，gaseousproductsandsolidresidues．There

6、sultsshowedthatsynergisticeffectsbetweentheblackliquorcharandpetroleumcokeoccurredduringtheCO—gasificationprocessat850~C．Comparedwiththeweightedaverageofthetwosamplesinseparategasificationreactions，thegasificationreactionratewasimprovedbyCO—gasification，moreover，t

7、hegasqualityandenergyefficiencywerebothimprovedasaresultofincreasinggasheatingvalueandcarbonconversion．ThecatalyticeffectofNa2CO3onpetroleumcokegasificationandinhibitionroleofpetroleumcoke013．NazCO3lossbecamemoresignificantasthepetroleumcokemassfractionrangingfrom

8、259／6to759／6，andthemeltingphenomenonofgasificationresidualsolidwassuppressed，whenthemassfractionofpetroleumcokewas75％inthemixtureofthewheatstrawblackliq