| Autor: |
Martin, Pedro, McCarty, Frances, Ehrmann, Ursula, De Lima, Lola, Carvajal, Nelson, Rojas, Anibal |
| Zdroj: |
Petroleum Science and Technology; January 1994, Vol. 12 Issue: 2 p267-280, 14p |
| Abstrakt: |
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 isolated. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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