US 7,014,751 B2Granted

Continuous liquid hydrocarbon treatment method

AssigneesExxonMobil Research and Engineering Company, Merichem Company

InventorsMark A. Greaney, Binh N. Le, Daniel P. Leta, John N. Begasse, Charles T. Huang, Verlin Keith Turner

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Abstract

The invention relates to a method for treating and upgrading a hydrocarbon containing acidic species such as mercaptans, comprising: (a) contacting the hydrocarbon, in the essential absence of oxygen, with a first phase of a treatment composition containing water, dissolved alkali metal hydroxide, cobalt phthalocyanine sulfonate, and dissolved alkylphenylates and having at least two phases, (i) the first phase containing water, alkali metal alkylphenylate, dissolved alkali metal hydroxide, and dissolved sulfonated cobalt phthalocyanine, and (ii) the second phase containing water and dissolved alkali metal hydroxide; and then (b) separating an upgraded hydrocarbon.

Claims24

Dependent claims

A method for upgrading a hydrocarbon containing mercaptans, comprising:

(a) contacting the hydrocarbon under substantially anaerobic conditions with a first phase of a treatment composition containing water, alkali metal hydroxide, cobalt phthalocyanine sulfonate, and alkylphenols and having at least two phases,
(i) the first phase containing dissolved alkali metal alkylphenylate, dissolved alkali metal hydroxide, water, and dissolved sulfonated cobalt phthalocyanine, and
(ii) the second phase containing water and dissolved alkali metal hydroxide;
(b) extracting mercaptan sulfur from the hydrocarbon to the first phase;
(c) separating an upgraded hydrocarbon;
(d) conducting an oxidizing amount oxygen and the first phase containing mercaptan sulfur to an oxidizing region and oxidizing the mercaptan sulfur to disulfides;
(e) separating the disulfides from the first phase;
and then
(f) conducting the first phase to step (a) for re-use.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/161,956Filed 4 Jun 2002 · us provisional application
Priority: 19 Jun 2001
Published: US 2003/0052046 A120 Mar 2003
Granted: 21 Mar 2006
Term ends: Not estimatedThe source records don’t support an estimate.

Classification14 codes

C10G 19/04
With aqueous alkaline solutions: containing solubilisers, e.g. solutisers
C10G 19/02
Refining hydrocarbon oils in the absence of hydrogen, by alkaline treatment: with aqueous alkaline solutions
C10G 19/08
Refining hydrocarbon oils in the absence of hydrogen, by alkaline treatment: recovery of used refining agents
C10G 21/06
Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents: characterised by the solvent used

Family

Application60/299,347Us provisional application · filed 19 Jun 2001
Application60/299,346Us provisional application · filed 19 Jun 2001
Application60/299,331Us provisional application · filed 19 Jun 2001
Application60/299,330Us provisional application · filed 19 Jun 2001
Application60/299,329Us provisional application · filed 19 Jun 2001
US 2003/0052046 A1Pre-grant publication · published 20 Mar 2003
US 7,014,751 B2This patent

From the US filing history. Foreign family members aren’t listed.