Usage of perturbed hydrogen before the hydrocracking feed heater
Thread Content
At present, the heat exchanger between the feed oil and the reaction effluent in this unit experiences a relatively fast scaling rate, which leads to a deterioration in heat transfer efficiency and severely affects the normal operation of the unit. Currently, the device uses scale inhibitors for treatment, but the effect is not very significant. During design, disturbed hydrogen was present in front of the feedstock heat exchanger, but it was never put into use. I wonder if there are any devices that use perturbed hydrogen? How effective is it? How is the amount of hydrogen perturbed controlled during use? Is there any adverse effect on the device? Please, experts, help solve this!
Some expert, please help answer this. Thank you very much :lol
:), are there any peers from Jinling Petrochemical? I heard that you guys have been using it there
Is this the process for mixing oil behind the furnace? The hydrogen mixing process in front of the furnace involves mixing oil and hydrogen before high-temperature exchange, resulting in little scaling.
When using perturbed hydrogen, attention must be paid to the amplitude and temperature; it is best for the temperature to be close to that of the heat exchanger. The flow rate of the perturbed hydrogen in our system cannot be controlled, as it is managed by a manual valve, and thus the flow rate remains constant.
Control it to a certain amount – the effect is pretty good; 2000 units is sufficient. If your scale inhibitor is no longer effective, using hydrogen turbulence at this point will not yield very good results either, because the heat exchanger is already covered in scale; hydrogen turbulence merely changes the flow rate to prevent scaling