Formaldehyde-Mediated Initial Carbon-Carbon Bond Formation in Zeolite-Catalyzed Methanol-to-Hydrocarbon Conversion.

ABSTRACT: Zeolite-catalyzed methanol-to-hydrocarbon conversion is a promising technology for the sustainable production of valuable hydrocarbon products. However, the mechanism behind the formation of the first carbon-carbon bond has been a subject of controversy for several decades. By comprehensive consideration of previous experimental phenomena and theoretical studies, a formaldehyde (HCHO)-based first carbon-carbon formation mechanism is proposed. Within the new mechanism, hydrated or methylated products of HCHO (methanediol, methyloxymethanol, and dimethyloxymethane) with much weaker C-H bond strengths replace methane in the traditional methane-HCHO mechanism, allowing energetically and kinetically favorable pathways to form the first C-C bond. The formed C-C bond products are further converte

SUBMITTER: Chen W 

PROVIDER: S-EPMC12272692 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature