in the table below shows that conjunct polymers can be readily upgraded to hydrocarbon with very minimal chloride and sulfur impurities where they can be used as feedstocks in some of the refining operations such the hydrocracker diesel hydrotreater coker fluid catalytic cracker or the crude oil unit in 1 liter glass reaction flask equipped with a reflux condenser and an over head stirrer conjunct polymers recovered from the regenerated ionic liquid catalyst were refluxed heated at reflux in various aqueous koh solutions for 2 3 hrs then the reaction mixture was cooled to room temperature and the hydrocarbon was separated from the aqueous layer and dried over magnesium sulfate the organic phase was then analyzed for chlorides and sulfur contents and for olefinicity by bromine number analysis the table below compares the conjunct polymers before and after the koh treatment at different koh strengths to de chlorinate the conjunct polymers they were treated with hot caustic by heating the conjunct polymers to reflux in an aqueous hydroxide ion solution in an aspect this aqueous hydroxide ion solution was 3m aqueous koh solution the reflux was carried out for 2 3 hours the treatment resulted in 65 chloride reduction the treatment with hot 3m koh also resulted in some de sulfurization of the conjunct polymers where sulfur levels dropped by u02dc 23 33 table 5 below shows a comparison between the levels of chloride and sulfur before and after the hot caustic treatment there was slight upward shift in the bromine number reflecting the elimination of hydrochloride which leads to making more double bonds an alternative procedure that.