CHARACTERIZATION AND DEPOSIT FROMING TENDENCY OF POLAR COMPOUNDS IN CRACKED COMPONENTS OF GASOLINE IDENTIFICATION OF PHENOLS AND AROMATICSULFUR COMPOUNDS

Abstract:

Acidic compounds in cracked components of gasoline, isolated by extraction with aqueous solutions of sodium bicarbonate and sodium hydroxide, were identified as phenol and its mono- di - tri- and tetramethyl- derivatives. Aromatic sulfur compounds seDarated as the hexanc and benzene fractions by chromatography on an alumina column were identified as thiophenc, its mono- di - and trimethyl- derivatives, ethylihiophenc, benzolhiophene and methylbenzoihiophene. The identification of the phenolic compounds was achieved by IR, hydrogen-1 and carbon-13 NMR spectroscopy and GC - MS. Additionally, for complete identification of sulfur compounds a GC equipped with a selective sulfur detector was used. ISD Induction System Deposit (ISD) tests showed a decreased deposit-forming tendency for phenol compounds and no significant deposit formation for aromatic sulfur compounds or other fractions …

Año de publicación:

1994

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Fuente:

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