Abstract:
According to the present invention, provided are a method for preparing a nickel-containing catalyst molded article for mixed modification reaction of methane and a catalyst prepared therefrom. The method includes the steps of: a) supporting a Ce precursor or a Ce-Zr precursor to a MgAlOx supporter, and supporting a Ni precursor simultaneously or sequentially; b) drying a mixture of the Ni precursor/Ce precursor or the Ce-Zr precursor/MgAlOx at 100-150°C and acquiring a catalyst precursor; c) materializing the dried catalyst precursor to have a density of 1.0-2.0 g/cc and acquiring a catalyst shape; and d) plasticizing the acquired catalyst shape at a temperature of 850-1250°C and acquiring the catalyst molded article.
Abstract:
The present invention relates to a cobalt catalyst for a Fischer-Tropsch synthesis to manufacture liquid hydrocarbon using synthetic gas generated from gasification of natural gas, coal, biomass, or the like; and a preparation method thereof. In the cobalt-based catalyst for the Fischer-Tropsch synthesis which is manufactured according to the present invention, cobalt nanoparticles are formed at low temperatures and thus chemical and physical changes in catalyst particles are prevented; and also since an oxygen deficiency is induced on the surface of the catalyst particles, reduction is triggered, and thus the conversion rate of carbon monoxide and selectivity of the liquid hydrocarbon are improved when applied to the Fischer-Tropsch synthesis.
Abstract:
The present invention provides a method for forming metal-containing particles comprising: a first step of preparing a porous carbon material where a metal-containing precursor for generating oxidizing gas after decomposition is applied to the inside of a pore; and a second step of forming a particle from the metal-containing precursor by using a pore of a porous carbon material as a mold, and removing a carbon material at the same time by heat-treating the prepared porous carbon material in an oxidation atmosphere at the decomposition temperature of the metal-containing precursor or higher. According to the present invention, the method for forming metal-containing particles is capable of forming a metal-containing particle by using a pore of a carbon material supporting member as a mold through low-temperature heat treatment, and effectively removing a carbon material at the same time. Moreover, the method for forming metal-containing particles is capable of manufacturing high-purity nanoparticles through a simple process, and avoiding a chemical reaction with a supporting member and sintering of nanoparticles by removing a carbon material supporting member through low-temperature heat treatment.