Method for reducing the level of elemental sulfur and total...

Details Method for reducing the level of elemental sulfur and total... Method for reducing the level of elemental sulfur and total...

2005-05-06

2009-12-15

Nguyen, Tam M (Department: 1797)

Mineral oils: processes and products

Refining

Sulfur removal

C208S20800M, C208S230000, C208S232000, C208S239000, C208S231000, C208S240000

Reexamination Certificate

active

07632396

ABSTRACT:
A method for reducing the level of elemental sulfur from sulfur-containing hydrocarbon streams as well as reducing the level of total sulfur in such streams. Preferred hydrocarbon streams include fuel streams such as naphtha and distillate streams that are transported through a pipeline. The sulfur-containing hydrocarbon stream is blended with an aqueous solution of water, a caustic, and at least one metal sulfide thereby resulting in an organic phase and an aqueous phase. The blended stream is then passed through a bed of solids having a suitable surface area so that a substantial amount of the sulfur moieties are removed by the aqueous phase.

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