碳五烯烃转化制丙烯和乙烯  

Conversion of C_5 Olefins to Propylene and Ethylene

作　　者：王定博[1] 刘小波[1] 李普阳[1] 马志元[1] 戴伟[1] 

机构地区：[1]中国石油化工股份有限公司北京化工研究院,北京100013

出　　处：《石油化工》2005年第6期513-517,共5页Petrochemical Technology

摘　　要：用氧化硅作载体,以分子筛为活性组分制备催化剂。考察了反应条件对不同硅铝比的分子筛制备的催化剂对碳五烯烃转化制丙烯和乙烯的活性和稳定性的影响。实验结果表明,在500℃、0.2M Pa、V(水)∶V(油)=0.6、原料空速3h-1的条件下,用高硅铝比(n(S iO2)∶n(A l2O3)=200)分子筛制备的催化剂的活性和选择性比用低硅铝比(n(S iO2)∶n(A l2O3)=50)分子筛制备的催化剂的活性和反应选择性好。在连续240h反应中,碳五烯烃转化率大于80%,丙烯产率大于31%,乙烯产率大于7%。A series of catalysts used in conversion of C5 olefins to ethylene and propylene were prepared by loading different active components on SiO2 and their catalytic performances were investigated. Effects of different n(SiO2) : n(Al2O3) molecular sieves and reaction conditions on activity and stability of catalysts were studied. Conversion and selectivity of catalyst with molecular sieve n(SiO2) : n(Al2O3)=200 were higher than those with molecular sieve n(SiO2) : n(Al2O3)=50. When 500°C, 0.2 MPa, V(H2O) : V(Oil)=0.6, LHSV 3 h-1 and catalyst with molecular sieve n(SiO2) : n(Al2O3)=200, conversion of C5 olefins was more than 80%, and yields of propylene and ethylene were more than 31% and 7% respectively during 240 h of reaction.

关 键 词：碳五烯烃 转化 催化剂 分子筛 丙烯 乙烯 

分 类 号：TQ221.214[化学工程—有机化工]