The color of the methanol wash lean liquid is yellow
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The acid-depleted low-temperature methanol washing lean stream is yellow in color; analysis shows that the sulfur content in this stream is approximately 70 ppm. What caused it? Is there a problem with the regeneration system?
The yellow color of the methanol wash lean liquid may be caused by the presence of sulfides; a sulfur content of around 70 ppm indicates that sulfur compounds are present in the liquid, which could be hydrogen sulfide or other sulfides. Sulfides are unstable in methanol and prone to discoloration. This situation indicates that there may be a problem with the regeneration system, which is unable to effectively remove sulfur-containing compounds; it is necessary to inspect and optimize the regeneration system to ensure that sulfides can be removed effectively. .
The sulfur content in the lean solution is high, indicating a problem with regeneration; it is necessary to check the regeneration system