Relationship between the absorption efficiency of a high-pressure scrubber and its outlet liquid temperature
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When the inlet water temperature remains constant, the higher the absorption efficiency of the high-pressure scrubber, is the outlet liquid temperature higher or lower?
Theoretically, since washing and absorption is an exothermic process, the better the absorption effect, the higher the temperature of the effluent.
I don’t quite agree with the view above; if you reduce the frequency control of pump A, the high exhaust gas temperature will inevitably rise. How can the absorption efficiency be good if pump A’s capacity is reduced? ?
The high-pressure scrubber in the new CO2 stripping process no longer has a heat exchange section
I think it is a matter of quantity; when the water flow into the high-pressure washer is appropriate, the temperature of the output liquid reaches its maximum value. If more absorbent solution is added, the temperature of the output liquid will drop, but absorption should be better at this point.
Bro, could you tell me more about the new high-pressure washer?
This post was last edited by WJHSWSW on 2013-12-19 at 22:25. It seems that the urea production plant using a pool-type reactor doesn’t have a heat exchange section in the high-pressure washing unit! I haven’t heard of any useful ones in China at the moment. I’ve only heard that there are some under construction.
It is recommended to refer to the opinions from the 6th floor. Additionally, someone above mentioned that washers without a heat exchange section represent Cabot’s latest technology; the 520,000-ton facility under construction in Hegang, China, uses this type as well.
The high-pressure washer in the new Cabon process does not have a heat exchange section; it only has a washing section. However, liquid ammonia is fed directly into the high-pressure washer, which allows it to absorb a large amount of heat.
In the domestically designed CO2 stripping unit, thanks to dehydrogenation, the temperature of the high-pressure washer drops to around 95 degrees. What is the ammonia content in the gas phase at this point?