Liquid desulfurization refining agent for removing sulfide in methyl tert-butyl ether, and preparation method and application thereof

The invention specifically relates to a liquid desulfurization refining agent for removing sulfide in methyl tert-butyl ether, and a preparation method and application thereof, belonging to the technical field of petrochemical engineering. The liquid desulfurization refining agent is prepared from the following components by mass: 90.0 to 97.0% of a solvent, 1.0 to 8.0% of a main component, 1.0 to8.0% of an antifoaming agent and 1.0 to 8.0% of a polymerization inhibitor, wherein the solvent is one or more selected from the group consisting of N,N-dimethylethylenediamine, dimethylpropylenediamine and sulfolane; the main component is one or more selected from the group consisting of diethylbenzene, propylene carbonate and sec-butyl acetate; the antifoaming agent is one or more selected fromthe group consisting of emulsified silicone oil and polydimethylsiloxane; and the polymerization inhibitor is one or more selected from the group consisting of diethylhydroxylamine and 2,4-dinitrophenol. The liquid desulfuriz