[2D20-23] C1 chemistry(3)

[2D21] A newfound zeolite catalyst for highly efficient carbonylation

○Jie YAO¹, Guohui Yang¹, Noritatsu Tsubaki¹ (1. University of Toyama)

Up to now, the member of zeolite family has expanded to more than 230. However, only little part of them have been reported as catalysts. Discovering potential zeolites for new reactions is significantly important, especially in industrial applications. We found a new zeolite catalyst Al-RUB-41 with specific morphology and channel orientation. The mass-transfer distance along 8-MR of this zeolite is very short. This specific nature endows Al-RUB-41 with efficient catalytic ability to dimethyl ether carbonylation beyond 95% methyl acetate selectivity. By erasing the acid sites on outer surface, Al-RUB-41@SiO₂ catalyst achieves a long-time and high-efficiency activity without any deactivation trend.

Keywords:Carbonylation, Zeolite, Catalysis