Catalytic cracking of alkanes on MCM-22 zeolite. Comparison with ZSM-5 and beta zeolite and its possibility as an FCC cracking additive
Catalytic cracking of alkanes on MCM-22 zeolite. Comparison with ZSM-5 and beta zeolite and its possibility as an FCC cracking additive
复制标题
DOI：
10.1016/0926-860x(95)00081-x
复制
发表时间：
1995-08
影响因子：
5.5
通讯作者：
A. Corma;V. González-Alfaro;A. Orchillés
中科院分区：
文献类型：
--
作者：
A. Corma;V. González-Alfaro;A. Orchillés
在MCM-22上进行了正庚烷裂化反应，并与ZSM-5和Beta沸石进行了动力学和衰变行为的比较。在MCM-22的情况下，开裂发生在10元环通道系统中，以及由12元环形成的大空腔中。产品选择性表明，MCM-22在表现出与ZSM-5结构相似的特征的同时，也表现出与ZSM-5以上的气孔或空洞相对应的特征。MCM-22对各产品的选择性以及对C_1+C_2/C_4、C_3/C_4、C_5/C_2、C_4/C_4和烷烃/烯烃的比值表明，MCM-22具有良好的性能，可用作催化裂化辛烷值助剂，特别适用于生产新配方汽油。
N-heptane cracking has been carried out on MCM-22, and its kinetic and decay behaviour is compared with that of ZSM-5 and Beta zeolites. In the case of MCM-22 cracking occurs in the 10-member ring channel system, as well as in the large cavities formed by 12-member rings. Product selectivities show that MCM-22, while presenting features which indicate structural similarities with ZSM-5, it also presents characteristics corresponding to pores or cavities larger than ZSM-5. The selectivities to the individual products together with C1+ C2/iC4, C3/C4, C5/C2, iC4/total C4, and alkane/alkene ratios indicate that MCM-22 has good properties to be used as an FCC octane booster additive specially valuable for the production of reformulated gasolines.