Abstract: A catalytic method for producing gaseous products from a fuel and a gaseous reagent having the steps of: providing a catalyst and the fuel to a reactor vessel such that the catalyst and the fuel are in fluid communication with each other within the reactor vessel, where the catalyst is a mixture of reduced metal oxides; and contacting the fuel and catalyst with the gaseous reagent within the reactor vessel at a reaction temperature to produce gaseous products, where the gaseous reagent contains at least CO2 or H2O, where the fuel comprises a carbonaceous source, and wherein the gaseous products are CO or syngas.

Abstract: This disclosure provides a method to produce highly attrition resistant pellets by encapsulating reactive components in a vitrified clay outer layer. The reactive component mixture is present relative to the clay substrate in a weight ratio of part per 60-100 part to about 60 parts of the clay substrate. The reactive components are agglomerated first, and clay substrate is added to form the outer layer of the pellet. The pellets are calcined at temperatures above 1200 C to form a vitrified clay semi porous outer layer providing high strength to the pellet while facilitating the gas transfer for the reaction with the encapsulated reactive components. Pellets containing CuO—Fe2O3-alumina oxygen carrier for chemical looping combustion of fuel demonstrated high attrition resistance and high reactivity with methane.

Abstract: The invention provides a calcined Fex—Aly—Oz based catalyst for the decomposition of hydrocarbons such as methane to produce hydrogen and carbon. The catalyst comprises iron oxide mixed with aluminum oxide and calcined at temperatures above 1100° C., where Fex—Aly—Oz is a chemical composition with x>0.1, y>0.1, z?0 and 0<x/y<200. Reaction of the calcined Fex—Aly—Oz catalyst with methane generates a product stream comprising at least 40 vol. % H2 and carbon. In an embodiment, carbon is separated from the catalyst and the catalyst is reused for continuous methane decomposition to produce H2.

Abstract: The invention provides a process for producing hydrogen having the steps of reacting a fuel with a combination of two oxygen carriers to produce gaseous products and reduced oxygen carriers; reacting a portion of the reduced oxygen carriers with steam to generate hydrogen and partially oxidized oxygen carriers; and reacting the partially oxidized oxygen carriers and remaining reduced oxygen carriers with air to generate heat and regenerate the two oxygen carriers in their original oxidation state, wherein the heat and regenerated oxygen carriers are reused.

Abstract: Materials, methods of making, and methods of providing a trimetallic oxygen carrier for converting methane containing fuel to synthesis gas. The trimetallic oxygen carrier comprises CuxFeyMnzOt, where CuxFeyMnzOt is a chemical composition with 0<x?3 and 0<y?3 and 0<z?3 and, 0<t?5. For example, CuxFeyMnzOt may be one of CuMnFeO4, CuFe0.5Mn1.5O4, CuFeMn2O4, CuFe2MnO4, or Cu impregnated on FerMnsOu, Fe impregnated on CurMnsOu, Mn impregnated on CurFesOu where r>0, s>0 and u>0 and combinations thereof. Reaction of trimetallic CuxFeyMnzOt with methane generates a product stream comprising at least 50 vol. % CO and H2.

Abstract: Methods, systems and apparatus relate to producing synthesis gas or carbon and hydrogen utilizing a reduced catalyst CuO—Fe2O3. The method comprises introducing CH4; reducing the CuO—Fe2O3 with the introduced CH4, yielding at least a reduced metal catalyst; oxidizing the reduced metal with O2 yielding CuO—Fe2O3; and generating heat that would be used for the hydrogen and carbon or syngas production with the reduced catalyst CuO—Fe2O3.

Abstract: Materials, methods of making, and methods of providing a trimetallic oxygen carrier for converting methane containing fuel to synthesis gas. The trimetallic oxygen carrier comprises CuxFeyMnzOt, where CuxFeyMnzOt is a chemical composition with 0<x?3 and 0<y?3 and 0<z?3 and, 0<t?5. For example, CuxFeyMnzOt may be one of CuMnFeO4, CuFe0.5Mn1.5O4, CuFeMn2O4, CuFe2MnO4, or Cu impregnated on FerMnsOu, Fe impregnated on CurMnsOu, Mn impregnated on CurFesOu where r>0, s>0 and u>0 and combinations thereof. Reaction of trimetallic CuxFeyMnzOt with methane generates a product stream comprising at least 50 vol. % CO and H2.

Abstract: A novel regenerable composition for removing hydrogen chloride and hydrogen sulfide from a gas stream, the sorbent comprising a mixture containing from about 5 wt % manganese oxide to about 99 wt. % manganese oxides where manganese can exist in various oxidation states.

Abstract: A sorbent material is provided comprising a material reactive with sulfur, a binder unreactive with sulfur and an inert material, wherein the sorbent absorbs the sulfur at temperatures between 30 and 200° C. Sulfur absorption capacity as high as 22 weight percent has been observed with these materials.

Abstract: A sorbent material is provided comprising a material reactive with sulfur, a binder unreactive with sulfur and an inert material, wherein the sorbent absorbs the sulfur at temperatures between 30 and 200° C. Sulfur absorption capacity as high as 22 weight percent has been observed with these materials.