Excess NH3 in the conversion unit
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What is the reason for the excessive NH3 content in the conversion unit? The water supply to the ammonia washing tower is already at the upper limit of the specified values; the load is 50%, and it is a medium-low-low conversion process
Is there a downward trend in ammonia levels after replenishing water to the ammonia washing tower?
The structural design of the upper section of the ammonia scrubber is unreasonable; even if additional water is supplied to the ammonia scrubber, the effect will not improve significantly.
Passed the test, but there were periods when it failed – sometimes it was 5, sometimes 10
Where is the internal components of the ammonia washing tower designed?
The solubility of ammonia in water is highly dependent on temperature. What is the temperature of the reformate gas?
What kind of washing water is being used? Compare the process when the results are satisfactory with that when they are not, to identify the cause; ultimately, it may be due to the equipment
Water temperature? Top of tower transformed gas outlet temperature?
First, in terms of the manufacturing process, consider water temperature and quality, and then consider equipment issues