Is the liquid level of the waste boiler related to the ammonia refrigeration area? ?

What does the original poster mean? Could you clarify the question?

It’s okay; the level of waste boiler liquid is related to the temperature of the gas exiting the synthesis tower, as well as to the flow rate of water supplied to the boiler

Under normal circumstances, it is only related to the pressure of the boiler feed water, the level control valve, and the steam pressure; however, when there are significant fluctuations in the temperature of the process gas at the waste heat boiler inlet, this can also cause short-term fluctuations in the liquid level of the waste heat boiler

It’s okay; there are also devices such as water cooling radiators between them.

The syngas needs to undergo heat exchange in the waste heat exchanger. What the original poster is asking is whether a high level of liquid in the waste heat exchanger leads to increased heat absorption, thereby causing the temperature of the syngas to drop and reducing the cooling load? It should be able to reduce the freezing load slightly. Here’s how I think about it: Let’s assume for now that the temperature of the waste water unit has no impact. Since the liquid level is now higher, more heat is required to raise the temperature of the water unit (in other words, with the same amount of heat available, the temperature of the desalinated water that can be raised in the syngas unit is lower). As a result, the temperature difference across the heat exchanger increases, which inevitably leads to more heat exchange in the subsequent syngas unit and a further drop in temperature. Thereby reducing the cooling load. What are everyone's thoughts?

If the cooling effect of ammonia declines, it will be impossible to cool the ammonia in the syngas, preventing effective separation in the separator. This leads to an increase in the ammonia content in the recycle gas, which in turn reduces the synthesis reaction rate. The exit temperature of the synthesis tower drops as well, causing the temperature of the water fed into the waste heat boiler to decrease, and this reduces the gas production rate of the waste heat boiler and affects its liquid level

This post was last edited and replied to by Chemical Gas Purification on 2011-1-17 at 16:40. Reply 1# 465204459: It is related to the fact that when the temperature of the waste heat exchanger is high, it causes the temperature entering the tower to be high as well; this results in a greater volume of circulation being required, and thus an increased ammonia cooling load. The chiller load is high.

This post was last edited by Chemical Gas Purification on 2011-1-17 at 16:46. I’m not sure if the poster is referring to the turbine in the refrigeration plant; some of the steam from the waste heat boiler goes to the turbine in that plant, and it seems like there’s no problem with that.

If it’s just the liquid level, it shouldn’t be a big issue, as the liquid level can be adjusted by controlling the water inflow rate. If it’s the temperature of the process gas at the outlet of the synthesis tower that changes, it will only affect the heat load on the waste heat boiler and the steam production rate.