Abstract
Various atmospheric residues of crude oil [Boscan (Venezuela), Maya (Mexico), Kirkouk (Iraq), Safanyia (Saudi Arabia), Arabian Light (Algeria)] have been analyzed by GC/MS coupling after “transalkylation”. The transalkylation of atmospheric residues from the aromatic matrix to a light aromatic acceptor was performed after optimization of the reaction, using an acidic catalyst/light aromatic acceptor couple: AlBr3 slightly hydrated/benzene. The reaction time was about four hours and the temperature 60°C. These conditions allow the best compromise between a maximal transfer of alkyl chains and their minimal degradation, which is necessary in an analytical study.
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