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OwnerMahendra K. Sunkara, Hari Prasad Reddy Kannapuinventors
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The present invention is a method for removing sulfur from hydrocarbon feedstocks and for performing hydrogenation reactions in sulfur-contaminated feedstocks, including the hydrogenation of naphthalene in the presence of sulfur compounds, using catalysts or adsorbents comprising metal oxide nanowires decorated with reduced catalytically-active metal particles. In an exemplary embodiment, the adsorbent comprises zinc oxide nanowires decorated with catalytically-active metals selected from nickel, cobalt, molybdenum, platinum, palladium, copper, oxides thereof, alloys thereof, and combinations thereof. In some embodiments, the sulfur is removed through a desulfurization process without an external hydrogen supply. The process is effective for the removal of sulfur from diesel fuels and liquid fuel streams, and for deep desulfurization of natural gas streams. The process is also effective for the selective hydrogenation of naphthalene to tetralin in the presence of sulfur compounds.
A method for the desulfurization of a sulfur-containing hydrocarbon feedstock wherein the process comprises reacting a sulfur-containing feedstock with a decorated nanowire adsorbent or an alloyed nanowire adsorbent to produce a sulfur-reduced product.
A method for the desulfurization of a sulfur-containing hydrocarbon feedstock wherein the process comprises the steps of:
A method for the regeneration of a desulfurization adsorbent wherein used adsorbent is flushed with hydrogen, air, water, or with a combination thereof, at a predetermined temperature for a predetermined time period.
Dependencies are inferred from the claim text.