| 摘要 |
PURPOSE:To improve the low temperature activity of a catalyst by manufacturing it through the first process where the first alcohol solution or ethylene glycol solution is prepared, the second process where the second solution is prepared, the third process where a carrier containing water is formed, the fourth process where a hydrolytic product is formed and the fifth process where a catalyst carrier is baked. CONSTITUTION:The first process is to prepare the first alcohol solution or ethylene glycol solution containing aluminum alkoxide, and the second process is to add catalytic metal salts dissolved in an ethylene glycol solution to the first alcohol or ethylene glycol solution to prepare the second solution containing aluminum alkoxide and catalytic carrier salts. The third process is to obtain a carrier containing water by allowing water to attach to the surface 12a of a catalyst carrying layer 12 and the surface of an active alumina particle 2, the fourth process is to form a hydrolytic product on the both surfaces of a carrier containing water by allowing the carrier to come in contact with the second solution, and the fifth process is to bake catalyst carriers 1A, 2 having the hydrolytic product. |
