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Fractionation for full boiling range gasoline desulfurization

  • US 6,726,835 B2
  • Filed: 12/17/2002
  • Issued: 04/27/2004
  • Est. Priority Date: 07/09/2001
  • Status: Active Grant
First Claim
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1. In a process for the treatment of a naphtha boiling range hydrocarbon to remove sulfur containing compounds wherein the naphtha boiling range hydrocarbon 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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