Seeking advice on low-temperature methanol washing
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Is it possible for the purified gas from low-temperature methanol washing to have a high level of trace H2S while having a low level of trace CO2? I don’t think it exists, but the total sulfur analyzed in the synthesized import material does contain sulfur
What is the desulfurization efficiency of this process? The effects of coal tar?
Hydrogen sulfide is more easily absorbed than carbon dioxide, but the standards may differ, and the accuracy and condition of the detectors may vary
This can occur if the lean methanol contains sulfur
Is the sulfur content in the clean gas obtained from low-temperature methanol washing acceptable? Analysis. . . . Furthermore, are there desulfurization units at the synthesis inlet, such as hydrolytic desulfurization and advanced desulfurization? ? ? ? If it exceeds that level again, it means the desulfurization function is not working and the unit needs to be replaced, or there is an issue with the operation.
Thermal regeneration is not feasible, as it will cause hydrogen sulfide to continue flowing into the absorption section along with the lean methanol, and in this case hydrogen sulfide may be carried away