What impact does a high oxygen content in the nitrogen produced by air separation have on methanol washing?
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If the nitrogen supplied from air separation has a high oxygen content, what impact does that have on the methanol washing process? What by-products are generated that can clog the filters?
Oxygen and CO alternately corrode the surface of the equipment material, preventing the formation of a protective film; ultimately, Fe(CO)5 undergoes thermal decomposition and reacts to form solid substances such as iron sulfides.
The reaction of hydrogen sulfide with oxygen produces elemental sulfur, which mainly clogs the filters at the inlet and outlet of the methanol-rich pump； In severe cases, the reboiler of the methanol-water separation tower becomes clogged ； It will also exacerbate oxygen corrosion of the equipment