Systems, methods and compositions for reducing the heteroatom content of hydrocarbon feed using transition metal complexes and adsorption techniques. The transition metal complexes include titanyl, hafnyl and zirconyl complexes activated using one or more hydroperoxides or peracids. The activated ad
Systems, methods and compositions for reducing the heteroatom content of hydrocarbon feed using transition metal complexes and adsorption techniques. The transition metal complexes include titanyl, hafnyl and zirconyl complexes activated using one or more hydroperoxides or peracids. The activated adsorbents are incorporated into one or more vessels as an adsorption bed for adsorbing the heteroatoms present in hydrocarbon feeds. The systems, methods and compositions separate the heteroatoms passed through the system by contacting the adsorption compositions with the heteroatoms of the hydrocarbon feed, adsorbing the heteroatom to the adsorption material, further allowing for the retrieval of a hydrocarbon product having a reduced heteroatom content.
대표청구항▼
1. A method for reducing a heteroatom content of a hydrocarbon feed comprising the steps of: providing an adsorbent having a metal complex bound to an inorganic oxide support, wherein the metal complex is a titanyl having a titanium molecule covalently bonded to an alcohol or polyol;contacting the a
1. A method for reducing a heteroatom content of a hydrocarbon feed comprising the steps of: providing an adsorbent having a metal complex bound to an inorganic oxide support, wherein the metal complex is a titanyl having a titanium molecule covalently bonded to an alcohol or polyol;contacting the adsorbent with a hydroperoxide or a peracid, forming an activated adsorbent;contacting the activated adsorbent with the hydrocarbon feed;binding a heteroatom present in the hydrocarbon feed to the activated adsorbent, forming a heteroatom-bound adsorbent, leaving behind a hydrocarbon feed having a reduced heteroatom content; andseparating the hydrocarbon feed having the reduced heteroatom content from the heteroatom-bound adsorbent. 2. The method of claim 1, further comprising the step: contacting the heteroatom bound adsorbent with a solvent, the solvent removing the heteroatom from the heteroatom-bound adsorbent, forming a regenerated activated adsorbent. 3. The method of claim 2, wherein the solvent is a hydroperoxide or peracid. 4. The method of claim 2, further comprising the step of: separating the heteroatom dissolved in the solvent from the regenerated activated adsorbent. 5. The method of claim 2, further comprising the steps of: contacting the regenerated activated adsorbent with a second hydrocarbon feed; andbinding a heteroatom of the second hydrocarbon feed to the regenerated activated adsorbent. 6. The method of claim 1, wherein the metal complex is selected from the group consisting of bis(glycerolato)oxotitanium(IV), bis(sorbitolato)oxotitanium(iv), bis(erythritolato)oxotitanium (IV), bis(mannitolato)oxotitanium(IV) and combinations thereof. 7. The method of claim 1, wherein hydroperoxide or peracid is selected from the group consisting of hydrogen peroxide, tert-butyl hydroperoxide, ethylbenzene hydroperoxide, cumyl hydroperoxide, tetrahydronaphthalene hydroperoxide, performic acid, peracetic acid and combinations thereof. 8. The method of claim 1, wherein the metal complex of the activated adsorbent is bis(polyol)(tert-butyl hydroperoxo)oxotitanium(IV), bis(polyol)(ethylbenzene hydroperoxo)oxotitanium(IV), bis(polyol)(cumyl hydroperoxo)oxotitanium(IV) or bis(polyol)(tetrahydronaphthalene hydroperoxo)oxotitanium(IV). 9. The method of claim 1, wherein heteroatom content of the hydrocarbon feed is reduced by at least 85%.
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