Synthesis tower adjustment
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How is the amount of ammonia and methylamine added to the synthesis tower adjusted in actual production? Are there any tips? Thanks first. This post was last edited by lxq700918 on 2009-3-28 21:09.]
Adjust by adding or subtracting based on the system’s ammonia-to-carbon ratio and water-to-carbon ratio! ! ! !
It can generally be adjusted based on the speed of the ammonia pump and the methylamine pump, as well as the ammonia-to-carbon ratio and water-to-carbon ratio at the outlet of the synthesis tower
1. Mainly based on the CO2 amount (i.e., the so-called production load). 2. The temperature of the urine tower. If the volume of Solution A and the CO2 level remain constant, and the temperature at the bottom of the urine tower is low, it is necessary to reduce the amount of ammonia fed into the tower accordingly ； Conversely, add ammonia appropriately. 3. The temperature difference between the top and bottom of the urine tower. When CO2 levels, the amount of ammonia fed into the tower, and the concentration of methylamine are constant, an appropriate increase in the amount of methylamine should be made when the temperature difference between the top and bottom of the urea tower is large ； Conversely, the amount of Solution A should be appropriately reduced.
Appropriate adjustments can also be made based on the analysis results.
Adjusting the amounts of ammonia and methylamine added to the synthesis tower is not a matter of technique; rather, it requires exploration during production control and operation, taking into account the characteristics and scale of the system, in order to develop systematic methods for production control and operation； It is also related to the production process, with each having its own advantages. ——Operational skills often lie with frontline operators.