Process for oxidizing one or more thiol compounds and subsequent separation in a single vessel

Patent metadata

Field	Value
Publication number	US-10435362-B2
Application number	US-201715808609-A
Country	US
Kind code	B2
Filing date	Nov 9, 2017
Priority date	Dec 21, 2016
Publication date	Oct 8, 2019
Grant date	Oct 8, 2019

Abstract

One exemplary embodiment can be a process for oxidizing one or more thiol compounds from an alkaline stream. The process may include passing a mixed stream having the alkaline stream to a vessel having an oxidation section, a separation section and a vent gas section. Often, the oxidation section includes a body containing one or more packing elements. The process can further include passing an oxidized alkaline stream to the separation section containing a first chamber and a second chamber. Usually, the first chamber contains a coated mesh and packing. The two sections further form a neck contains a packing, a distributor, and a mesh.

First claim

The invention claimed is:

1. A process for oxidizing one or more thiol compounds from an alkaline stream, and separating the oil by-product and excess air from the oxidized alkaline stream in a single vessel, comprising:
(A) passing a mixed stream comprising the alkaline stream to a vessel having an oxidation section, a dividing wall attached to a bottom of the vessel and extending upward a portion the vessel's height, a separation section, wherein all sections comprise one or more packing elements, the latter two sections also contain a scrubbing feature which entails a distributor, and a mesh;
(B) passing an oxidized alkaline stream over the dividing wall where the oil by-product is separated in the separation section containing a first chamber and a second chamber wherein the first chamber contains a coated mesh and a wash oil distributor;
(C) passing a vent gas stream, also known as spent air, upwards to the neck which contains packing, a mesh and a wash oil distributor for scrubbing; and
(D) passing the vent gas stream to a vent tank.

2. The process according to claim 1 , wherein the vessel is at a temperature of about 35° C. to about 55° C.

3. The process according to claim 1 , wherein the vessel is at a pressure of about 340 kPa to about 630 kPa.

4. The process according to claim 1 , wherein the mesh in the neck comprises any suitable metal.

5. The process according to claim 1 , wherein the separation section comprises a two-chamber body.

6. The process according to claim 1 , wherein the packing comprises at least one of a ring packing, a fiber contactor, a film contactor, and one or more trays.

7. The process according to claim 1 , further comprising passing a spent oxygen-containing gas through the packing and then the mesh contained in the neck of the vessel.

8. The process according to claim 1 , wherein the first chamber can include one or more packing beds and one or more distributors.

9. The process according to claim 1 , wherein the second chamber comprises a coated mesh.

Assignees

• Uop Llc

Inventors

• Tertel Jonathan A
• Wong Susanna K

Classifications

• C10G27/06

  in the presence of alkaline solutions · CPC title

• C10G19/08

  Recovery of used refining agents · CPC title

• C10G19/02

  with aqueous alkaline solutions · CPC title

• C07C319/28

  Separation; Purification · CPC title

• C07C319/24

  by reactions involving the formation of sulfur-to-sulfur bonds · CPC title