摘要
β沸石在萘烷基化反应中的形状选择性喻顺祥王祥生（大连理工大学碳资源综合利用开放实验室，大连１１６０１２）关键词β沸石，萘，甲基化，异丙基化，β－位选择性分类号Ｏ６４３／ＴＱ４２２，６－二烷基萘（ＤＡＮ）是制备聚酯和液晶最有发展前途的原料之一［１］．然...
The methylation and the isopropylation of naphthalene over Hβ zeolite were studied in a small fixedbed reactor. The results showed that the alkylating agents had important effects on the alkylation reaction, such as naphthalene conversion, product composition and coke deposit over Hβ. When iPrOH was used as the alkylating agent instead of MeOH, Hβ zeolite exhibited higher activity and selectivity for 2,6dialkylnaphthalene in the gasphase alkylation of naphthalene. The reaction temperature could decrease from 300℃ to 200℃, which was favorable for selecting the solvent and decreasing the coke deposit during the reaction. The shapeselective effect was attributed to the steric hindrance of Hβ for isopropyl groups.
出处
《催化学报》
SCIE
CAS
CSCD
北大核心
1998年第3期271-272,共2页
