How can ammonia in the exhaust gases released from the venting cylinder be completely removed?
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As the title suggests, I would like to ask how everyone handles this situation. Can it be completely treated through catalysis? Or some other way? Thank you!
We direct the gas phase from the vent tube to a water tank, adding three layers of spraying, that is, water washing for recovery.
Thank you for the reply! But what should be done with the ammonia produced? Send it back to the ammonia tank for hydrolysis?
An immersion absorption system can be installed to recover ammonia when its concentration reaches a certain level.
Submersion absorption requires a certain head pressure; there is a slight positive pressure in the exhaust gas of the vent tube. How can this be achieved? Can an induced draft fan be used?
What is the ammonia concentration in the vent tube? Sources of ammonia? It’s better to resolve the problem at its source.
Due to the low purity of the feed gas, the low-suction vent gas contains a large amount of ammonia； Free ammonia in the ammonia tank and urine tank ； The ammonia concentration in the vent tube is used as a sample; it ranges from 0.18% at low levels to 0.44% at higher levels.
Ammonia in the low-pressure vent stream is an issue that can be easily resolved through process optimization.
The purity of carbon dioxide in the feed gas is low – how low? Is it below 96%? What are the components of the liquid from the low-pressure absorption tower, the ammonia tank, and the liquid from the atmospheric-pressure absorption tower? The ammonia content in the vent cylinder ranges from 0.18% to 0.44%. Are you analyzing gaseous ammonia or liquid ammonia?
Around 96%, with the groove value generally between 8% and 9% – that’s the gas phase composition!
Before oxygenation in our carbon dioxide inlet zone, the purity was 96.6%, and the ammonia nitrogen concentration in the ammonia tank was 5%