Cooling of the Klaus catalyst bed
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After the Claus furnace is shut down, the temperature of the catalytic bed drops very slowly. What can be done? Do anyone have any good suggestions? Please advise. Thank you all
There is no need to give excessive consideration to the cooling rate of the Klaus bed, as the cooling rate of the sulfur production furnace has already been determined; it is sufficient to cool it in accordance with the furnace’s cooling rate. The cooling rate of the path must not be too high
When stopping the machine, the temperature should not drop too quickly; cooling should only begin after the sulfur in the reactor has been purged. Cooling can be achieved by purging with nitrogen.
During the shutdown of the sulfur unit, cooling is the final step； Reaching this stage indicates that the catalyst treatment is complete; the system has been processed, and either air or nitrogen can be used.
After sulfur blowing is completed, ventilation can be used to cool down; the cooling rate is affected by air temperature and flow rate.
During shutdown for maintenance, if it’s not necessary to operate the reactor, the speed of cooling doesn’t matter. At the end of sulfur injection, the mixing valve is fully closed; the reactor inlet temperature should not be high, and thus the bed level drops. To open it, nitrogen can be blown in to cool it down. . :handshake