Dual-engine-driven realizing high-yield synthesis of Para-Xylene directly from CO₂-containing syngas.

ABSTRACT: The direct synthesis of light aromatics, especially para-xylene (p-X), from syngas/CO₂ is drawing strong interest, but improving the space-time yield (STY) of p-X is a significant challenge. Here, a dynamic "dual-engine-driven" (DED) catalytic system is designed by combining two partners of ZnCr and FeMn (named "dual-engine") with Z5@SiO₂ capsule zeolite. The DED catalyst of 1.0%FeMn&[ZnCr&Z5@SiO₂] shows an extremely higher p-X STY of 36.1 g_p-x·k_gcat^-1·h^-1, about eight times higher than that of [ZnCr&Z5]. DED manipulates ZnCr engine for methanol formation and drives FeMn engine for light olefins generation together, and then the formed methanol and light olefins are coordinately converted in situ into p-X-rich aro

SUBMITTER: Wu X 

PROVIDER: S-EPMC11401844 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature