Regarding the secondary drying of sulfur production furnaces in sulfur recovery
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This post was last edited by *aoF223 on 2016-4-3 21:51. Dear sea friends, I would like to discuss with you the issue of secondary drying of the sulfur recovery unit. At present, the catalysts for the primary and secondary converters have been installed, and before starting up the operation, it is necessary to dry the sulfur production furnace once again. Should a blind flange be installed at the flange located after the high-temperature mixing valve (up to the primary converter)? Note: 1. If the high-temperature mixing valve cannot be closed completely, there is definitely some degree of leakage ； 2. There is concern that the butterfly valve at the inlet of the primary converter cannot be closed properly, which could lead to hot flue gases from furnace drying to enter the primary reactor.
Nitrogen is present at the reactor inlet; the reactor outlet valve is closed, and nitrogen is used for backflushing as a protection measure. After introducing nitrogen, pay attention to the pressure in the reactor system to prevent overpressure.
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Pressurize with nitrogen in one rotation, and seal off the high-temperature combustion gases