On the desulfurization effect of liquefied gas
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For the liquefied gas desulfurization process I’m using, the concentration of the alkaline solution is 13%, and the catalyst used is sulfonated titanium phthalocyanine. The amount of untreated air fed into the system is 30 Nm3 – neither too much nor too little. I’ve modified the extraction oil by using diesel hydrogenated naphtha; currently, the total sulfur content in the liquefied gas is 100. Tests show that the concentration of the alkaline solution has remained essentially unchanged. The extraction oil is replaced almost daily, and over the course of two days, the total sulfur content in this oil ranges from 100 to 8000. I would like to know if there are any other methods that can be used to address this situation
Adsorption desulfurization can be considered, with continuous regeneration and no need for replacement
Are there any good solutions under the current conditions? Any renovation must wait until work stops, and a major renovation is unlikely
I also worked in refining for a few years; frequent changes of alkali don’t help much when it comes to desulfurization of alcohols. You might try increasing the air volume. The previous device used the lean liquid from the sulfur unit, that is, a methyldiethanolamine solution for desulfurization; titanium cyanocobalt sulfide was used for desulfurizing gasoline.