Study on a new desulfurization method based on imitating ionic liquids for light diesel oil |
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| Authors: | D Y Han F J Zhang Z B Cao |
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| Affiliation: | 1.School of Petrochemical Engineering,Liaoning Shihua University,Fushun,People’s Republic of China;2.Hebei Petrochemical Design Institute CO., LTD.,Shijiazhuang,People’s Republic of China |
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| Abstract: | A simulated light oil consisting of model sulfur compounds of benzothiophene (BT), dibenzothiophene (DBT) and 4,6-dimethyldibenzothiophene
(4,6-DMDBT) and straight-run light diesel oil fractions as solvent was employed for desulfurization tests imitating silver-salt
method for ionic liquids (ILs). Under the conditions of a nitrogen atmosphere, reaction temperature of 303 K, reaction time
of 24 h, the effects of different alkylating agents and amount of agent on the sulfur removal were investigated in more details.
The results showed that when ratio of bromoethane (CH3CH2Br) to sulfur is 80: 1 (mol/mol) and ratio of potassium tetrafluoroborate (KBF4) to sulfur 30: 1 (mol/mol), the desulfurization yield were 72.6%. |
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