废FCC催化剂与高炉灰催化木屑热解特性研究  

Study on the pyrolysis characteristics of sawdust catalyzed by spent FCC catalyst and blast furnace ash

作　　者：张玉明[1] 管俊涛 乔沛 李国通 李家州 张炜 刘明华[2] ZHANG Yu-ming;GUAN Jun-tao;QIAO Pei;LI Guo-tong;LI Jia-zhou;ZHANG Wei;LIU Ming-hua(State Key Laboratory of Heavy Oil Processing,China University of Petroleum-Beijing,Beijing 102249,China;College of Environment&Safety Engineering,Fuzhou University,Fuzhou 350108,China)

机构地区：[1]中国石油大学(北京)重质油国家重点实验室,北京102249 [2]福州大学环境与安全工程学院,福建福州350108

出　　处：《燃料化学学报》2022年第11期1524-1534,共11页Journal of Fuel Chemistry and Technology

基　　金：国家重点研发计划(2018YFE0183600);中国石油大学(北京)科研基金(2462020YXZZ043,2462021QNXZ007)资助。

摘　　要：将炼油废FCC催化剂(sFCCc)和炼钢高炉灰(BFA)两种典型工业废弃物作为催化剂应用于木屑快速热解过程中,探究了400−700℃木屑的催化热解反应特性。结果表明,两种催化剂均促进了液相产物向气相产物的转化,700℃、BFA催化条件下的气相产率最高为52.60%。sFCCc在500−600℃时具有更强的脱氧活性,气体产物中CO和CO_(2)产量更高。BFA在600−700℃时具有更高的缩聚脱氢活性,催化生成了更大量的多环芳香类化合物和H_(2)。热解油主要由酚类物质组成,sFCCc促进了甲氧基酚向苯二酚类物质转化。热解油FT-IR解析结果表明,sFCCc促进了C−O和C=O的脱除,导致酸类和酯类化合物减少,CO_(2)产率增加。Two industrial wastes,spent FCC catalyst(sFCCc)and blast furnace ash(BFA),were used as catalysts in the fast pyrolysis of sawdust,and the catalytic pyrolysis reaction characteristics of sawdust in the temperature range of 400−700℃were explored.The results showed that both catalysts promoted the conversion from liquid products to gaseous products,and the highest gas yield was 52.60%at 700℃catalyzed by BFA.The sFCCc had stronger deoxygenation activity at 500−600℃,resulting in higher CO and CO_(2) production in gaseous products.While BFA had higher polycondensation and dehydrogenation activity at 600−700℃,and promoted the formation of polycyclic aromatic compounds and H_(2).Pyrolysis oil was mainly composed of phenols.The sFCCc promoted the conversion of methoxy phenol to benzenediol.FT-IR analysis of pyrolysis oil showed that sFCCc promoted the removal of C−O and C=O,resulting in decreased acid and ester compounds and increased CO_(2) yield.

关 键 词：生物质 热解 废FCC催化剂 高炉灰 

分 类 号：TK6[动力工程及工程热物理—生物能]