Direct Conversion of Syngas to Light Olefins over a ZnCrO _x + H-SSZ-13 Bifunctional Catalyst.

ABSTRACT: In recent years, bifunctional catalysts for the syngas-to-olefins (STO) reaction via the oxide-zeolite (OX-ZEO) strategy has been intensively investigated. However, the bifunctional catalyst containing H-SSZ-13 with a 100% H⁺-exchanging degree for the STO reaction has not been developed because of the high selectivity to paraffin. Here, we report a ZnCrO _x + H-SSZ-13 bifunctional catalyst, which contains the submicron H-SSZ-13 with adequate acidic strength. Light olefins in hydrocarbon reached 70.8% at a CO conversion of 20.9% over the ZnCrO _x + H-SSZ-13(23S) bifunctional catalyst at 653 K, 1.0 MPa, and GHSV = 6000 mL·g^-1·h^-1 after 800 min of STO reaction. The effect of CO and H₂ on the C-C coupling was discuss

SUBMITTER: Huang Y 

PROVIDER: S-EPMC8153927 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature