Process and composition for increasing the reactivity of sulfur scavenging oxides
AssigneeM-I L.L.C.
InventorDelbert C. Scranton JR.
Life of this patent
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Abstract
In ridding fluids, including hydrocarbon fluids, both gaseous and liquid, of sulfur compounds including hydrogen sulfide, oxides of sulfur, and thiols, the present invention uses a small quantity of an activator, generally a noble metal oxide, preferably a copper species, along with a known oxide product, such as iron oxide or zinc oxide, to thoroughly remove sulfur contaminants in a short amount of time. The activator allows for the use of smaller reactor vessels and the production of hydrocarbon fluids substantially free of sulfur products.
Claims11
A process for increasing the efficiency of removal of sulfur compounds from fluids, comprising passing the fluids through an oxide product having a temperature equal to or less than 300° C. which is activated by an amount of activator, the oxide product is reactive with sulfur and is selected from the group consisting of iron oxide, zinc oxide, and combinations thereof, said activator is selected from the group consisting of platinum oxide, gold oxide, silver oxide, copper oxide, copper metal, copper carbonate, copper alloy, cadmium oxide, nickel oxide, palladium oxide, lead oxide, mercury oxide, tin oxide, and cobalt oxide, with said activator added to the oxide product in an amount equal to from about 0.125% by weight to about 5% by weight of the total composition, with said activator increasing the rate of reactivity of the oxide product with the sulfur compounds found in the fluid so that the oxide product removes the sulfur from the fluids.
A process for increasing the efficiency of removal of sulfur compounds from fluids, comprising passing the fluids through an oxide product activated by an amount of activator with the oxide product having a temperature equal to or less than 300° C., with the oxide product selected from the group with consisting of iron oxide, zinc oxide, and combinations thereof, said activator being a copper species and having a higher electro-potential than the oxide product, with said activator increasing the rate of reactivity of the oxide product with the sulfur compounds found in the fluid.
A composition designed for scavenging sulfur compounds in fluids, wherein said composition is comprised of an oxide product and an activator, with said oxide product selected from the group consisting of iron oxide, zinc oxide, and combinations thereof, said activator equal to from about 0.125% to about 5% by weight of the oxide product activator composition, said activator composition having a higher electro-potential than the oxide product, with said activator being a copper species and increasing the reactivity of the oxide product with the sulfur compounds.
A composition for activating a pervious bed made of carriers and an iron oxide reactant, wherein said activation composition is selected from the group consisting of noble metal oxides, noble metal alloys, and noble metals with said group having a higher electro-potential than the iron oxide.
A process for removing hydrogen sulfide from hydrocarbon fluids involving adding an activator to an oxide, wherein said activator couples to the oxide to increase the rate of reaction of the oxide with the sulfide, with said activator having a higher electro-potential than the oxide.
Dependencies are inferred from the claim text.