摘要:
A heater has microchannels for uniform heating, and includes an upper plate having an inlet of material to be heated, a fuel inlet and an oxidant inlet. A lower plate has a heated material outlet and an exhaust gas outlet. A plurality of combustion thin plates and a plurality of heat transfer thin plates are alternately layered between the upper and lower plates. Each of the combustion thin plates and the heat transfer thin plates has an inlet hole of material to be heated, a heated material outlet hole, an oxidant hole, an exhaust gas hole, a fuel hole, and microchannels formed at respective corresponding positions. The upper plate is aligned with the combustion thin plate contacting the lower surface thereof, and the lower plate is aligned with the heat transfer thin plate contacting the upper surface thereof.
摘要:
Disclosed herein is a method of preparing a palladium alloy composite membrane for hydrogen separation, including (a) providing a first metal coating layer on a porous support using a dry sputtering deposition process; (b) providing a palladium coating layer on the first metal coating layer using a dry sputtering deposition process; and (c) heat treating the palladium coating layer to form an alloy layer of palladium and the first metal.
摘要:
Disclosed herein is a method of preparing a palladium alloy composite membrane for hydrogen separation, including (a) providing a first metal coating layer on a porous support using an electroplating process; (b) providing a palladium coating layer on the first metal coating layer using a dry plating process; and (c) heat treating the palladium coating layer to form an alloy layer of palladium and the first metal.
摘要:
Provided is a hydrogen separation membrane prepared by compression-molding metal microparticles having hydrogen adsorbing properties, wherein the microparticles are composed of 0.5 to 50% by weight of a first metal powder and 50 to 99.5% by weight of a second metal powder having a relatively larger average particle diameter than the first metal powder.
摘要:
Provided are a metal structure catalyst and a method of preparing the same. Particularly, the method includes forming a metal precipitate on a metal support by contact of a mixed solution including a precursor of a metal catalyst and a precipitating agent with the metal support, and forming metal particles by thermally treating and reducing the metal precipitate formed on the metal support. The metal structure catalyst includes a metal support, a metal oxide layer formed on the metal support, and metal nanoparticles formed on the metal oxide layer. In addition, the metal nanoparticles are uniform and have enhanced binding strength.
摘要:
Provided is a hydrogen separation membrane prepared by compression-molding metal microparticles having hydrogen adsorbing properties, wherein the microparticles are composed of 0.5 to 50% by weight of a first metal powder and 50 to 99.5% by weight of a second metal powder having a relatively larger average particle diameter than the first metal powder.
摘要:
A heater has microchannels for uniform heating, and includes an upper plate having an inlet of material to be heated, a fuel inlet and an oxidant inlet. A lower plate has a heated material outlet and an exhaust gas outlet. A plurality of combustion thin plates and a plurality of heat transfer thin plates are alternately layered between the upper and lower plates. Each of the combustion thin plates and the heat transfer thin plates has an inlet hole of material to be heated, a heated material outlet hole, an oxidant hole, an exhaust gas hole, a fuel hole, and microchannels formed at respective corresponding positions. The upper plate is aligned with the combustion thin plate contacting the lower surface thereof, and the lower plate is aligned with the heat transfer thin plate contacting the upper surface thereof.
摘要:
Disclosed herein is a catalyst structure for steam reformation, in which a nickel-based steam reforming catalyst is coated on a metal monolith. Also disclosed is a method for producing hydrogen using a steam reforming reaction, the method comprising bringing a mixed gas of steam and hydrocarbon into contact with the disclosed catalyst structure.
摘要:
A method for converting hydrocarbon fuels to hydrogen and carbon monoxide through catalytic partial oxidation is described. The process comprises a reactor containing both an electrically heated catalyst as a start-up device and novel-metal-washcoated metallic monolith catalysts and a heat exchanging device. The partial oxidation reaction becomes ignited in less than 1.5 minute when the gaseous hydrocarbon fuel and oxygen-containing gas mixture is in contact with an electrically heated catalyst. The reaction takes place over the metallic monolith catalyst washcoated with noble metal (typically Pd/alumina-cerium oxide). The near complete conversion of hydrocarbon fuels with high hydrogen and carbon monoxide selectivities is achieved by preheating the feed mixture heat-exchanged with hot product gas stream.
摘要:
The present invention provides a metal structure for a compact reformer and a preparation method thereof, a catalyst-supported metal structure and a preparation method thereof, and a catalyst-supported metal structure module. More particularly, the present invention relates to a metal structure prepared through electrochemical treatment and heat treatment and a preparation method thereof, a catalyst-supported metal structure prepared by supporting a catalyst on the metal structure and a preparation method thereof, and a catalyst-supported metal structure module manufactured by irregularly layering the catalyst-supported metal structures to improve the contact between reaction gases and catalysts.