▎ 摘　　要

NOVELTY - Graphene-based desulfurization catalyst comprises 5-55 wt.% graphene and 45-95 wt.% molecular sieve, preferably, the graphene-based desulfurization catalyst comprises 15-55 wt.% graphene and 45-85 wt.% molecular sieve. The graphene-based desulfurization catalyst is prepared by mixing a molecular sieve and a graphene aqueous solution, then sequentially performing ultrasonic treatment, stirring, filtering, drying and calcining on the obtained mixed solution. USE - Graphene-based desulfurization catalyst for desulfurization of hydrogen produced as a by-product of catalytic dehydrogenation of low-carbon alkane (claimed). ADVANTAGE - The graphene-based desulfurization catalyst simultaneously removes inorganic sulfur and organic sulfide in the hydrogen, simplifies the desulfurization process of hydrogen produced by catalytic dehydrogenation and effectively improves the desulfurization efficiency of the desulfurizer. The graphene-based desulfurization catalyst uses graphene as an active component, and any auxiliary agent does not need to be added, so that the harm to downstream catalyst components caused by the auxiliary agent introduced into the desulfurizer can be avoided. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a desulfurization method for hydrogen produced as a by-product of catalytic dehydrogenation of low-carbon alkane, which involves using the activated graphene-based desulfurization catalyst to perform catalytic desulfurization treatment on the hydrogen produced as a by-product of catalytic dehydrogenation of low-carbon alkane to remove sulfide in hydrogen. DESCRIPTION OF DRAWING(S) - The drawing shows a process flow diagram of a desulfurization method for hydrogen byproduct from catalytic dehydrogenation of low-carbon alkane. First desulfurizing tower (1) Second desulfurizing tower (2) First valve (3) Second valve (4) Third valve (5) Fourth valve (6) Inlet pipeline (9) Outlet pipeline (10) Psa reactor (11) Heating device (12)