| 摘要 |
A method of manufacturing nickel-alumina xerogel catalyst is provided to manufacture a simple catalyst of which reproducibility is very excellent by manufacturing nickel-alumina catalyst with a single process and to manufacture hydrogen gas from a liquefied natural gas. A method of manufacturing nickel-alumina xerogel catalyst comprises steps of: 1) dissolving an aluminum precursor in a heated alcohol solution; 2) forming an transparent sol by mixing and hydrating partly water, acid and alcohol in the solution of the step 1); 3) forming the nickel-alumina mixture sol by adding the nickel precursor after cooling the transparent sol of the step 2) at 20-80‹C; 4) obtaining the nickel-alumina mixture gel by cooling the mixture sol of the step 3) at the room temperature and hydrating the mixture sol of the step 3) using a mixture of the water and the alcohol; 5) aging the mixture gel of the step 4); 6) constructing the matured mixture gel of the step 5) at 75-100‹C; and 7) heat-treating the mixture gel dried from the step 6) at 500-900‹C. |
