What is the role of the reduction section and the reverse pressure difference, and why is the pressure difference increased?
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This post was last edited by Green Lotus on 2017-7-27 at 21:41. What is the function of the continuous reformation and regeneration system’s restoration section and the first-stage differential pressure? Why is the pressure difference increased? I seek guidance from experts
1. Prevent oil and gas from the reactor from entering the reduction zone, which could cause coking of the catalyst and lead to a decrease in its activity； 2. Prevent oil and gas from the reactor from entering the reduction zone, as this can cause fluidization of the catalyst in that zone, affecting its movement and the efficiency of the reduction process ； 3. Ensure that the reduced exhaust gas can be properly introduced into the inlet of the booster pump, preventing exhaust gas with a high water content from entering the reaction system (if the pressure in the reduction section is low, the reduced exhaust gas cannot be fed into the booster pump inlet and must instead go into the gas-liquid separation tank for reformation reactions).
Thank you, master. Why does this differential pressure need to be adjusted so often? Normally it’s 120 kPa, but sometimes it’s adjusted to 110, and other times to 100
It should generally be set at 100 Kpa. A high pressure difference indicates a high pressure in the reduction zone, which might be favorable for metal reduction. Alternatively, an increase in the pressure difference can also be caused by blockages in the internal mesh; pay attention to whether there are significant changes in the valve position when adjusting the pressure difference. In my experience, at the designed flow rate of reducing hydrogen, the valve position of this control valve should be around 60%.
To prevent oil and gas from flowing back from the inlet into the reduction chamber and causing hydrocarbon contamination, a very high purity of reducing hydrogen is required; excessive hydrocarbons can lead to carbon deposition on the surface of the catalyst, and in some cases, excessive temperature can cause the catalyst to be damaged