| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for sieving a catalyst, with which fine powder is removed from a solid catalyst used in a sulfuric acid production process or the like, and with which a burden of maintenance operation is drastically reduced.SOLUTION: In a process to convert gaseous SOinto gaseous SO, a method for sieving a catalyst to remove fine powder 20, formed by pulverization of a portion of a catalyst layer, from the solid catalyst layer 2 stacked on a sieve-shaped catalyst receiver 3 in a converter 10, is characterized in that sieving is performed by making the catalyst receiver 3 vibrate and the fine powder 20 be sieved out from the catalyst receiver 3 in a state in which the catalyst layer 2 is stacked on the catalyst receiver 3. |
