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Nice chemistry but there might be a problem.

The problem is that the sulfur end product has the potential to be a rather nasty compound. The worst smelling sulfur compound which I have heard of with the strongest smell has to be either tert-butyl thiol or Me3SiSSiMe3. If the process forms Et3SiSSiEt3 then it might well convert the slightly offensive things like benzothiophene and dibenzothiophenes into something which has a lot of potential to be more mobile and offensive.

The normal end product of HDS is to form hydrogen sulfide which can be scrubbed out of gas streams with zinc oxide or removed in some other methods such as combustion with a limited amount of oxygen to form SO2 which then reacts with H2S to form sulfur and water.

I have never tried to work with Et3SiSSiEt3, but might have similar properties to the methyl compound and thus be quite horrible. An alternative to HDS (hydrodesulfurisation) is to use oxidation of the sulfur compounds to change their properties followed by some separation such as solvent extraction.