What is the impact of the amount of circulating hydrogen on the liquid level in the cold high-pressure section?
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In a hydrocracking unit, with all other parameters remaining constant, what is the effect of an increase or decrease in the hydrogen circulation rate on the level of the cold high-pressure liquid phase? Will the liquid level rise with a large hydrogen flow rate? Is it low otherwise? Please explain! ! !
With other operating conditions unchanged, the amount of recycled hydrogen increases and the level in the cold high-pressure separator rises.
Why? With the processing volume, pressure, and temperature remaining unchanged!
The main function of circulating hydrogen is cooling; as its flow rate increases, the cooling capacity rises, and the more light hydrocarbons are cooled, the higher the level of the cold fractionator liquid
When the temperature after cooling in the high-pressure air cooler remains constant, an increase in the circulation rate leads to a reduced cooling effect; liquid is carried in the high-pressure gas stream, and there is a slight increase in liquid presence in the downstream stream
With all other parameters remaining unchanged!
Do you mean the desulfurization system by \"backup option,\" or the high liquid level?
After cooling and pressurization, we went straight to the hydrogen circulation inlet for liquid separation; it’s a small device, and no desulfurization setup is available there
There is more oil in the circulating hydrogen flow rate range. It has nothing to do with pressure and flow rate
With all other parameters unchanged, if the flow rate in the cycle starts to increase, the value will certainly rise, but it won’t keep rising indefinitely; after all, the space velocity determines the amount of oil inside the reactor.
Will the oil level rise? It must also be light hydrocarbons!