Hydrogen sulfide generated as a by-product of low-temperature methanol washing
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Hydrogen sulfide is an electron gas that is widely used. The hydrogen sulfide available in China at present comes mainly from the recovery of exhaust gases from refineries, and its quality is low, primarily because it is difficult to remove SO2 and CO2. I would like to know if there are units for low-temperature methanol washing that collect hydrogen sulfide for sale. Theoretically, what level of ppm should SO2 and CO2 be in the hydrogen sulfide separated by low-temperature methanol washing?
It’s not in ppm, right? It’s usually expressed as a percentage or something like that
Hydrogen sulfide 28%, carbon dioxide 69%
There is no SO2; H2S is present at around 30%
About 30%, generally used for sulfur recovery to produce sulfur and sulfuric acid
When the concentration is near 30%, it is advisable to send it to a sulfur recovery unit
The hydrogen sulfide content in the acidic gas sent for desulfurization recovery is generally between 25% and 35%; the remainder is mostly CO2, with small amounts of gases such as methanol present as well.
Our company is capable of recovering hydrogen sulfide from waste gases. We use a newly developed absorbent that is not affected by CO2 or SO2, allowing for the production of high-purity hydrogen sulfide. Please contact us if you are interested