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生物质催化热解的TG-FTIR研究
TG-FTIR RESEARCH OF BIOMASS CATALYTIC PYROLYSIS
【摘要】 借助综合热分析仪和傅立叶红外联用技术(TG-FTIR),考察了HUSY、REY和HZSM-53种分子筛以及重油催化裂化催化剂MLC和馏分油催化裂解催化剂CIP对生物质催化热解的活性和选择性。研究结果表明,分子筛对生物质热解产物的脱氧活性顺序为:REY≈HUSY>HZSM-5,生成高辛烷值烃类的选择性顺序为:REY>HUSY≈HZSM-5;MLC催化剂和CIP催化剂都表现出较高的选择活性,前者的脱氧活性略高于后者;择形分子筛HZSM-5的引入对调整催化剂酸强度、提高催化转化选择性和抑制焦炭生成产生一定作用。
【Abstract】 The TG integrated with FTIR was used to investigate the activities and selectivities of HUSY,REY and HZSM- 5 zeolites,and furthermore,the heavy oil cracking catalyst MLC and distillate oil cracking catalyst CIP used in China re- fining industry.The research shows that REY zeolite has satisifing activity for deoxygenation and selectivity for High-Oc- tane-Number-Hydrocarbons production.Both MLC and CIP catalyst show well HONH selectivities,however,MLC cata- lyst shows better deoxygenating activity.The adoption of HZSM-5 can adjust catalyst acid strength,improve catalyst se- lectivity and inhabit the coke-deposition on catalyst pores as well.
【Key words】 biomass; catalytic pyrolysis; TG-FTIR; activity; selectivity; zeolite;
- 【文献出处】 太阳能学报 ,Acta Energiae Solaris Sinica , 编辑部邮箱 ,2007年06期
- 【分类号】TK6
- 【被引频次】38
- 【下载频次】702