Urea oxygenation for corrosion prevention
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This post was last edited by 1025199692 on 2016-2-5 09:40. Are there any users from Hubei Qianjiang Jinhua Run Fertilizer Co., Ltd.? It is said that oxygen-enriched passivation is used for corrosion prevention in the urea stripping unit that produces 1,700 tons of CO2 per day. Is it true? What is the volume percentage of oxygen?
It should also be controlled based on the oxygen content index of the gas entering the tower, with only a reduction in the volume of gas.
That’s good. What I asked was the concentration of oxygen-rich air? ? ? ?
The oxygen-enriched concentration is intended to ensure that the exhaust gas remains outside the explosive range, and this concentration varies depending on the load level. Calculations can be done using the phase diagram of a multi-component system.
Generally, a compressor is used to supply passivated air to the stripping tower; in some cases, hydrogen peroxide is also used! ! !
Is there anyone from Hubei Qianjiang Jinhua Run Fertilizer Co., Ltd.? In the Nissan urea stripping plant that produces 1,700 tons of CO2, oxygen-enriched passivation is used for corrosion prevention. Is it true? What is the volume percentage of oxygen? Hubei Qianjiang Jinhua Run – Urea, oxygen-enriched anti-corrosion treatment; what is the concentration of oxygen?
Looking forward to the answer to this question; we have also discussed it before.
I’ve seen ones with added pure oxygen… of course, the purity isn’t that extremely high.
Our facility uses air supplied by synthetic air compressors and introduced at the inlet of the second stage of the compressor for dehydrogenation and high-pressure corrosion protection.
This post was last edited by 1025199692 on 2016-1-29 at 20:59. Using oxygen-enriched or pure oxygen for anti-corrosion is very dangerous. Moreover, in the oxygen-enriched, high-pressure scrubber gas-phase method, a certain degree of opening is necessary to maintain an adequate amount of venting.