PROCESS FOR SULFONE CONVERSION BY SUPER ELECTRON DONORS
First Claim
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1. A method of upgrading a hydrocarbon feedstock by removal of sulfones and sulfoxides therefrom, which comprises the steps ofa. supplying a hydrocarbon feedstock to an oxidation reactor, the hydrocarbon feedstock comprising sulfur-containing compounds;
- b. contacting the hydrocarbon feedstock with an oxidant in the presence of a catalyst in the oxidation reactor under conditions sufficient to selectively oxidize sulfur compounds present in the hydrocarbon feedstock to produce a hydrocarbon stream that comprises hydrocarbons and oxidized sulfur-containing compounds;
c. separating the oxidized sulfur-containing hydrocarbon stream into an aqueous phase and a non-aqueous oxidized effluent;
d. recovering the non-aqueous oxidized effluent and contacting it with an electron donor agent to oxidize sulfones and sulfoxides present in the non-aqueous oxidized effluent; and
,e. separating and recovering the hydrocarbon stream from which the sulfones and sulfoxides have been removed.
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Abstract
A process wherein an electron donor agent is provided for the decomposition of sulfones and sulfoxides formed after the oxidative desulfurization of a sulfur-containing hydrocarbon stream.
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Citations
20 Claims
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1. A method of upgrading a hydrocarbon feedstock by removal of sulfones and sulfoxides therefrom, which comprises the steps of
a. supplying a hydrocarbon feedstock to an oxidation reactor, the hydrocarbon feedstock comprising sulfur-containing compounds; -
b. contacting the hydrocarbon feedstock with an oxidant in the presence of a catalyst in the oxidation reactor under conditions sufficient to selectively oxidize sulfur compounds present in the hydrocarbon feedstock to produce a hydrocarbon stream that comprises hydrocarbons and oxidized sulfur-containing compounds; c. separating the oxidized sulfur-containing hydrocarbon stream into an aqueous phase and a non-aqueous oxidized effluent; d. recovering the non-aqueous oxidized effluent and contacting it with an electron donor agent to oxidize sulfones and sulfoxides present in the non-aqueous oxidized effluent; and
,e. separating and recovering the hydrocarbon stream from which the sulfones and sulfoxides have been removed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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