I would like to ask why low-methanol levels can only lead to excessive H2S levels
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Recently, the hydrogen sulfide content of the lean methanol in the thermal regeneration tower has been above the specified limit, while the levels of water and ammonia are within the acceptable range.
Increasing the temperature of the regeneration tower appropriately should solve the problem!
Affected by the previous system, the regeneration temperature fluctuates, and the recirculation pump experiences slight cavitation.
The temperature in the methanol regeneration tower is insufficient, which prevents H2S from being desorbed… Increase the steam supply to the reboiler accordingly……
1. Check for any defects in the reboiler, and verify whether the steam flow meter of the reboiler is accurate. 2. Ensure that the regeneration tower is operating properly, and that there are no issues with the control of process parameters