Desulfurization of a naphtha gasoline stream derived from a...

Details Desulfurization of a naphtha gasoline stream derived from a... Desulfurization of a naphtha gasoline stream derived from a...

2006-10-17

2006-10-17

Caldarola, Glenn (Department: 1764)

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With subsequent treatment of products

C208S209000, C208S213000, C208S210000, C208S211000, C208S212000

Reexamination Certificate

active

07122114

ABSTRACT:
A process for reducing sulfur compounds in naphtha to produce gasoline of ultra-low sulfur content, i.e., 10–30 ppm of sulfur, from a fluidized catalytic cracking reactor effluent stream, withdraws a high sulfur content sidestream of catalytically produced medium and heavy cat naphtha with an endpoint of +430° F. that is fed to a side column where any thiophenic and benzothophenic compounds are catalytically reacted with hydrogen to convert them to hydrogen sulfide. The desulfurized light and mid-cut naphtha is returned to the main fractionation unit and the heavy catalytic naphtha is withdrawn as a product stream from the bottom of the side column.

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