Oxidative desulfurization using a titanium(IV) catalyst and organohydroperoxides
First Claim
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1. A sulfoxidation method comprising:
- providing a hydrocarbon stream comprising at least one sulfur compound;
providing an oxidant comprising organohydroperoxide;
providing a catalyst that selectively oxidizes sulfides, is substantially non-leaching, and is generated in situ, the catalyst comprising a metal compound represented by the general formula M(OOR)(OH)(OR′
)2 wherein M is a metal;
R is selected from the group consisting of hydride, alkyl groups, aryl groups, and/or alkylaryl groups; and
wherein R′
is selected from the group consisting of ethylene glycol, glycerol, sorbitol, xylitol and/or mixtures thereofcontacting the hydrocarbon stream with the oxidant in the presence of the catalyst, resulting in the oxidation of at least one sulfur compound.
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Abstract
Oxidative desulfurization (ODS) is an attractive alternative to hydrodesulfurization (HDS) technology due to its lower energy requirement for the removal of refractory sulfur species, such as dibenzothiophene (DBT), from heavier petroleum streams. Diesel containing DBT may be oxidized using a heterogeneous titanium(IV) catalyst and organohydroperoxide oxidant, such as tert-butyl hydroperoxide (TBHP), cumyl hydroperoxide (CHP) and/or ethylbenzene hydroperoxide (EBHP), which proves effective for the selective oxidation and removal of refractory sulfur compounds from diesel fuel.
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18 Claims
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1. A sulfoxidation method comprising:
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providing a hydrocarbon stream comprising at least one sulfur compound; providing an oxidant comprising organohydroperoxide; providing a catalyst that selectively oxidizes sulfides, is substantially non-leaching, and is generated in situ, the catalyst comprising a metal compound represented by the general formula M(OOR)(OH)(OR′
)2 wherein M is a metal;
R is selected from the group consisting of hydride, alkyl groups, aryl groups, and/or alkylaryl groups; and
wherein R′
is selected from the group consisting of ethylene glycol, glycerol, sorbitol, xylitol and/or mixtures thereofcontacting the hydrocarbon stream with the oxidant in the presence of the catalyst, resulting in the oxidation of at least one sulfur compound. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification