Gasoline desulfurization process
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Will the sodium sulfide formed after alkali washing entering the gasoline affect the total sulfur content of the final gasoline product?
In the gasoline desulfurization process, during the alkaline washing step, alkaline substances such as sodium hydroxide (NaOH) or sodium carbonate (Na2CO3) are used to neutralize hydrogen sulfide (H2S), resulting in the formation of sodium sulfide (Na2S). After the reaction is complete, sodium sulfide is removed and does not remain in the gasoline. Therefore, the sodium sulfide formed after alkaline washing does not affect the total sulfur content of the product gasoline. .