Abstract
Room temperature ionic liquids (RTILs) are mainly referred to melting salt systems composed by organic cations and organic or inorganic anions that exhibit liquid-like behavior at or around room temperature. Chloroaluminate room temperature ionic liquid (chloroaluminate RTILs) is one kind of RTIL synthesized by chloride quaternary ammonium salts and anhydrous AlCl3. Three kinds of chloroaluminate RTILs were synthesized using trimethylamine hydrochloride (TA), 1-butylpyrinium chloride (BPyC), or 1-methyl-3-alkylimidazolium (BMIC), respectively, with anhydrous AlCl3 and their application in reducing the content of olefin in FCC gasoline from the Jinzhou Petrochemical Corporation was studied. The effects of chloroaluminate RTIL component and operation conditions on olefin reduction were investigated as well as the repeatability of chloroaluminate RTILs. The results show that at room temperature, when the ratio of anhydrous AlCl3 to quaternary ammonium (mole/mole), the solvent-oil ratio (g/g), and the reaction time were 2/1, 20/100, and 1/2 h, respectively, the content of olefin in FCC gasoline was deduced more than 30%. The chloroaluminate RTILs could be used at least four times on the basis of keeping their activity.
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