一次煅烧温度对混合沉淀法制备的乙苯脱氢催化剂性能的影响  

Effect of Different First-calcination Temperature on Ethylbenzene Dehydrogenation Catalyst Prepared With Mixed Precipitation

作　　者：崔裕洋 CUI Yu-yang(Fujian Academy of Safety Science and Technology,Fuzhou Fujian 350001,China)

机构地区：[1]福建省安全生产科学研究院,福建福州350001

出　　处：《辽宁化工》2023年第10期1449-1451,1455,共4页Liaoning Chemical Industry

摘　　要：采用新的制备方法——混合沉淀法,混合沉淀原料采用部分硝酸盐、部分氧化物的形式加入,采取不同一次煅烧温度制备催化剂,并通采用XRD、TG-DTA等谱学手段对催化剂进行表征和分析,探讨一次煅烧温度对催化剂性能的影响。结果表明:在水/乙苯摩尔比为8.8且空速为1h^(-1)时,不同一次煅烧温度制备的一系列催化剂的活性随着一次煅烧温度的升高先升高后降低,并在270℃左右时达到最高。A new method-mixed precipitation were selected to prepare the catalyst.Some nitate and oxide were added as precipitate material to prepare a series catalysts with different first-calcination temperature,then the catalysts were characterized by XRD,TG-DTA and so on.As the first-calcination temperature increased,the activity of the catalysts increased first and then decreased,and the activity reached the best at the temperature of about 270℃.

关 键 词：乙苯脱氢 催化剂 混合沉淀法 一次煅烧温度 

分 类 号：TQ426[化学工程]