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Fractionation for full boiling range gasoline desulfurization

  • US 6,540,907 B1
  • Filed: 07/09/2001
  • Issued: 04/01/2003
  • Est. Priority Date: 07/09/2001
  • Status: Expired due to Fees
First Claim
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1. In a process for the treatment of an FCC naphtha fraction to remove sulfur containing compounds wherein the FCC naphtha fraction is separated by fractional distillation yielding at least light and heavy fractions, the improvement which comprises performing the fractional distillation in a dividing wall column and producing an intermediate fraction comprising C7 olefins and thiophene.

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