The effect of CO on the desulfurization reaction
Thread Content
Dear seniors: What impact does the CO concentration in the recycle hydrogen have on the desulfurization reaction in gasoline hydrotreating units? What is the specific reaction? What is the effect of CO on the reactions in selective hydrogenation reactors? Seeking advice!
It mainly affects the catalyst; CO poisons the catalyst, causing it to lose its desulfurization capability.
Could you explain the principle by which CO poisons catalysts?
The main reason is the fear of the formation of the highly toxic substance nickel carbonyl! ! ! The strong exothermic reaction of CO is secondary. Therefore, hydrogenation units have requirements regarding the CO content in the fresh hydrogen.