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Analytical procedures for the isolation of the sulfide and thiophene classes of compounds from fluid catalytic cracking (FCC) and residue fluid catalytic cracking (RFCC) gasoline are described. The methods are based on an effective composite extractant, sulfuric acid and water (SA–H 2 O), which has high efficiencies for extraction and recovery of sulfides from light petroleum fraction as well...
A systematic method for the determination of sulfur compounds in light petroleum fractions and gasoline is tested, on the basis of a developed analytic method for the sulfide sulfur-silver nitrate complex method. The distribution of various sulfur compounds in simulated light petroleum fraction as well as in FCC and RFCC gasoline has been quantitatively determined.
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