| 摘要 |
The present invention provides: a process which involves safely and sanitarily extracting a solid material from a shell-and-tube reactor with good efficiency. The process comprises the step of extracting a solid material 90 that is packed in a reaction tube 20 of a shell-and-tube reactor 10, with the process further comprising: the step (a) of inserting an aspirating tube 30 from an end of the reaction tube 30 wherein the aspirating tube 30 is connected to an exhaust gas aspirator 70; and the step (b) of extracting the solid material 90 from the reaction tube 20 by aspirating the solid material 90 in the reaction tube 20 from a tip of the aspirating tube 30 together with a stream of air. <IMAGE> |
