China Petroleum Processing and Petrochemical Technology, 2011,Vol. 13,
No. 4, pp 23-28
Comparative Study on
Oxidative Desulfurization of FCC Gasoline by Ce4+ Compound and H2O2
Li Haixia1; Xiao Lingmei1;
Ma Jie1; Han Xiaogang1; Li Jian2
1. Department of Chemistry, Capital Normal University, Beijing 100048;
2. SINOPEC Research Institute of Petroleum Processing, Beijing
Abstract:
Describes two kinds of
model oil samples made of a benzothiophene/octane mixture and a 2-methylthiophene/octane
mixture. Authors investigate the oxidative desulfurization selectivity and
reaction efficiency when Ce4+ compound and H2O2 having identical electron
equivalent weight are used as oxidants.
Results revealed that the
two kinds of oxidants were more effective to remove benzothiophene in the model
oil samples. Authors use quantum chemistry analyses to elaborate the complex
formed between Ce4+ species and 2-methylthiophene and FT-IR spectrograms of
model oil samples before and after oxidation by Ce4+ compound and H2O2, respectively.
Results showed that Ce4+ compound could
remove sulfur compounds not only through oxidation reaction but also through
complexation reaction.
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