384 results about "Carbon product" patented technology

Electrodes and electrocatalyst layers incorporating modified carbon products. The modified carbon products may advantageously enhance the properties of an electrode or electrode layer, leading to more efficiency within the a fuel cell or similar device.

Gas / Fluid diffusion layers incorporating modified carbon products. The modified carbon products advantageously enhance the properties of gas / fluid diffusion layers, leading to more efficiency within a fuel cell or similar device incorporating the gas / fluid diffusion layer.

A compact hydrogen generator is coupled to or integrated with a fuel cell for portable power applications. In the process of producing hydrogen for the generator via thermocatalytic decomposition (cracking, pyrolysis) of hydrocarbon fuels in an oxidant-free environment, novel carbon products are produced with filamentary surfaces, “octopus”-like carbon filaments, single carbon nanotube fibers and the like. Two novel processes are disclosed for the production of carbon filaments and a novel filamentous carbon product useful in the clean-up of oil spills on the surface of water. The apparatus can utilize a variety of hydrocarbon fuels, including natural gas, propane, gasoline, and sulfurous fuels. The hydrogen-rich gas produced is free of carbon oxides or other reactive impurities, so it can be directly fed to any type of a fuel cell. The hydrogen generator can be conveniently integrated with high temperature fuel cells to produce an efficient and self-contained source of electrical power.

Bipolar plates incorporating modified carbon products. The modified carbon products advantageously enhance the properties of the bipolar plates, leading to more efficiency within a fuel cell or a similar device.

The invention discloses a purification and graphitization method of a graphite material, aiming at solving the technical problems of improving the quality of the graphite material, saving energy and reducing cost. The method comprises the following steps: putting a graphite product or a carbon product in a graphite crucible in a furnace body; heating to 900-1700 DEG C, and then introducing nitrogen or argon; continuing to heat to 1000-1950 DEG C, introducing chlorine and then continuing to rising the temperature to 1400-2300 DEG C; simultaneously, introducing bromine or a fluorine-containing gas, heating to 1800-3300 DEG C and then stopping heating; introducing the chlorine until the temperature is reduced to below 1000-2000 DEG C; and feeding nitrogen or argon lasting for more than 0-15 hours. Compared with the prior art, the ash content of the obtained graphite product is less than 0.00011%; electrical energy consumption is reduced; and the method has the advantages that the processis simple, the cost is low, the quality of the graphite product is stable, and energy is saved.

Methods of making a silica-coated carbon product are described. In one method, an aqueous media or solution and a carbon product are contacted with a solution comprising a silicate substantially free of metal ions, for a sufficient time and temperature to form the silica-coated carbon product. A method of making a silica-coated product by contacting the aqueous media and a carbon product with a solution comprising monosilicic acid is also described as well as exchanging metal ions in a solution comprising metallic silicate for hydrogen ions and contacting an aqueous media and a carbon product with the solution to form silica-coated carbon products. Silica-coated carbon products resulting from these methods are also described and include a plurality of silica-coated products wherein each of the silica-coated products are substantially and uniformly coated with silica and in the substantial absence of free silica. Also, elastomeric compositions and the like containing the silica-coated carbon products are described.

The invention discloses a petroleum coke desulfurizing method. The petroleum coke desulfurizing method comprises the following steps: heating petroleum coke to 400-700 DEG C for precalcining for a certain time first, and then in an ammonia gas atmosphere, heating green petroleum coke to 700-1000 DEG C and preserving heat for a certain time so as to achieve a desulfurizing aim. By the petroleum coke desulfurizing method, most of sulfur in the petroleum coke is removed under the conditions that more heat is not consumed and the microstructure and physical and chemical properties of the petroleum coke are not affected, so that the sulfur content of the petroleum coke is greatly reduced, the quality of the petroleum coke is improved, and the environmental pressure of a carbon product industry with the petroleum coke as a raw material is greatly reduced; therefore, the petroleum coke desulfurizing method is wide in application prospect.

The invention relates to the technical field of the treatment of solid waste substances, and particularly relates to a high-temperature continuous treatment system for disposing a waste cathode of electrolytic aluminum. The invention provides the high-temperature continuous treatment system for disposing the waste cathode of the electrolytic aluminum. The high-temperature continuous treatment system comprises a crushing system, a feed system, a roasting system, a fume treatment system and a solid particulate matter treatment system, wherein the crushing system is used for crushing a charcoal block of the waste cathode of the electrolytic aluminum to form particulate material and conveying the particulate material to the roasting system by the feed system; the roasting system comprises an electric calcining furnace, a gas discharge opening is formed in the upper end of the electric calcining furnace, and a solid discharge opening is formed in the lower end of the electric calcining furnace; the fume treatment system is connected with the gas discharge opening; the solid particulate matter treatment system is connected with the solid discharge opening. By the system, a fluoride salt and a carbon product which are high in quality and further have economic value added are obtained; further, the system is simple in structure, convenient to operate and low in energy consumption and cost, has innocent treatment, and improves the treatment efficiency and the resource utilization efficiency of the charcoal block of the waste cathode of the electrolytic aluminum.

The invention relates to the technical field of regenerating treatment and recycling utilization of sludge and particularly discloses a preparation method of a novel sludge carbon-based desulfurization and denitrification catalyst. The preparation method disclosed by the invention has the advantages that a carbon product obtained by utilizing a hydrothermal carbonization method has more active sites and stable C-O compounds, and the adsorbing capability is larger than that of high-temperature cracked carbon, and rare-soil metal is used as a catalyst; the novel sludge carbon-based desulfurization and denitrification catalyst has the characteristics of wide source and low price, and the obtained sludge carbon-based catalyst is high in activity and strong in stability; the processing steps are simple and feasible; the catalyst is environmental-friendly, is easy in promotion and application, has industrial application prospect and achieves the purpose of treating-waste-by-waste really.