Selective Dimerization of Ethene to 2-Butene on Zn2+-Modified ZSM-5 Zeolite

• DOI: 10.1021/acs.jpcc.2c01101
• Publication Date: 2022-04-06T16:23:11Z
• Authors: Zoya N. Lashchins...; Anton A. Gabrienko; Alexander A. Kolg...; Evgeny A. Pidko; Alexander G. Step...
• Keywords: ZSM-5; Butene; 1-Butene

Selective dimerization of ethene to 2-butene on Zn2+-containing ZSM-5 zeolite (Zn2+/ZSM-5) at 296–523 K has been discovered. The intermediate but-3-en-1-ylzinc species is identified with 13C CP/MAS NMR and Fourier transform infrared spectroscopy. density functional theory study two alternative pathways reveals that the formed involvement saturated bridged dimeric Zn–(CH2)4–O species. It also shown conversion increases increase in quantity Brønsted acid sites Zn2+/ZSM-5 zeolite; however, selectivity reaction decreases. results obtained are potential interest for developing industrially relevant Zn-containing catalysts selective 2-butene.