High hydrocarbon content in acid gas from low-temperature methanol washing
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Dear sea friends! The hydrocarbon content in the acid gas recovered from desulfurization in the low-temperature methanol washing unit is high; please advise
Check the pre-washing system as well as the composition of the raw gas at the inlet
Do you know about analysis and sampling? Do high hydrocarbon levels have an impact on the device?
Well, yes. Hydrocarbons mainly affect the start-up of sulfur recovery processes
This depends on your gas feedstock process – it depends on whether you use coal or gas as the source
When pressurized gasification of pulverized coal is used and there is a high proportion of younger coal types such as C2+, the phenomenon mentioned by the original poster occurs.
Hydrocarbons also affect the quality of sulfurized products.
We will use pressurized pulverized coal, thank you
When the hydrocarbon level is high and it enters the sulfur recovery process, if the air supply is insufficient, the hydrocarbons cannot burn completely; they pyrolyze to form carbon black, which then mixes with sulfur and condenses, causing the sulfur to turn black and affecting its quality
Well, carbon black tends to clog pipes and also affects the quality of sulfur
Increase the inlet temperature to the first Claus stage to facilitate hydrolysis of hydrocarbons as much as possible within the first Claus reactor