DR. TRAN NGOC NGUYEN, L. AC.
Acupuncture at Richmond Ave, Houston, TX

7799213, Sep 21, 2010

Jul 8, 2005

11/177060

Lawrence N. Kremer - The Woodlands TX, US
Tran M. Nguyen - Houston TX, US
Jerry J. Weers - Richmond TX, US

Baker Hughes Incorporated - Houston TX

C10G 17/00, B01D 17/05

208282, 208177, 208179, 208181, 208187, 208188, 208263, 208265, 208283, 208284, 585820, 585823, 516142

Reactive phosphorus species can be removed or transferred from a hydrocarbon phase to a water phase in an emulsion breaking process by using a composition that contains water-soluble hydroxyacids. Suitable water-soluble hydroxyacids include, but are not necessarily limited to glycolic acid, gluconic acid, C-Calpha-hydroxy acids, poly-hydroxy carboxylic acids, thioglycolic acid, chloroacetic acid, polymeric forms of the above hydroxyacids, poly-glycolic esters, glycolate ethers, and ammonium salt and alkali metal salts of these hydroxyacids, and mixtures thereof. The composition may optionally include a mineral acid to reduce the pH of the desalter wash water. A solvent may be optionally included in the composition. The invention permits transfer of reactive phosphorus species into the aqueous phase with little or no hydrocarbon phase undercarry into the aqueous phase. The composition is particularly useful in treating crude oil emulsions, and in removing calcium and other metals therefrom.

2011010, May 12, 2011

Jan 18, 2011

13/008615

Tran M. Nguyen - Houston TX, US
Lawrence N. Kremer - The Woodlands TX, US
Jerry J. Weers - Richmond TX, US

Baker Hughes Incorporated - Houston TX

C10G 33/02, C10G 33/04, C10L 1/00, B01F 1/00

208 14, 208187, 208188, 252364

It has been discovered that metals and/or amines can be removed or transferred from a hydrocarbon phase to a water phase in an emulsion breaking process by using a composition that contains water-soluble hydroxyacids. Suitable water-soluble hydroxyacids include, but are not necessarily limited to glycolic acid, gluconic acid, C-Calpha-hydroxy acids, poly-hydroxy carboxylic acids, thioglycolic acid, chloroacetic acid, polymeric forms of the above hydroxyacids, poly-glycolic esters, glycolate ethers, and ammonium salt and alkali metal salts of these hydroxyacids, and mixtures thereof. The composition may also include at least one mineral acid to reduce the pH of the desalter wash water. A solvent may be optionally included in the composition. The invention permits transfer of metals and/or amines into the aqueous phase with little or no hydrocarbon phase undercarry into the aqueous phase. The composition is particularly useful in treating crude oil emulsions, and in removing calcium and other metals therefrom.

7497943, Mar 3, 2009

Aug 27, 2003

10/649921

Tran M. Nguyen - Houston TX, US
Lawrence N. Kremer - The Woodlands TX, US
Jerry J. Weers - Richmond TX, US

Baker Hughes Incorporated - Houston TX

C10G 45/00

208251R, 208179, 208181, 208187, 208254 R, 585 3

It has been discovered that metals and/or amines can be removed or transferred from a hydrocarbon phase to a water phase in an emulsion breaking process by using a composition that contains water-soluble hydroxyacids. Suitable water-soluble hydroxyacids include, but are not necessarily limited to glycolic acid, gluconic acid, C-Calpha-hydroxy acids, poly-hydroxy carboxylic acids, thioglycolic acid, chloroacetic acid, polymeric forms of the above hydroxyacids, poly-glycolic esters, glycolate ethers, and ammonium salt and alkali metal salts of these hydroxyacids, and mixtures thereof. The composition may also include at least one mineral acid to reduce the pH of the desalter wash water. A solvent may be optionally included in the composition. The invention permits transfer of metals and/or amines into the aqueous phase with little or no hydrocarbon phase undercarry into the aqueous phase. The composition is particularly useful in treating crude oil emulsions, and in removing calcium and other metals therefrom.

8372270, Feb 12, 2013

Jan 18, 2011

13/008667

Tran M. Nguyen - Houston TX, US
Jerry J. Weers - Richmond TX, US
Jianzhong Yang - Missouri City TX, US
Ksenija Babic - Katy TX, US

Baker Hughes Incorporated - Houston TX

C10G 17/04, C10G 33/04

208251R, 208252, 208290, 208291

It has been discovered that metals can be removed or transferred from a hydrocarbon phase to a water phase in an emulsion breaking process by using a composition that contains a demulsifier (for instance, an oxyalkylated alkyl resin and/or a crosslinked polypropylene glycol), a surfactant, a diketone and a solvent (for instance an aromatic solvent). The method may also include introducing a hydroxyl carboxylic acid and/or at least one mineral acid to reduce the pH of the desalter wash water. The method permits transfer of metals into the aqueous phase with little or no hydrocarbon phase undercarry into the aqueous phase. The composition is particularly useful in treating crude oil emulsions, and in removing iron therefrom.

2012018, Jul 26, 2012

Aug 3, 2011

13/197359

Tran Nguyen - Houston TX, US
Lawrence N. Kremer - Woodlands TX, US
Douglas J. Longtin - Pasadena TX, US
Marc N. Lehmann - Houston TX, US
George G. Duggan - Katy TX, US
Lauren Wagner - Houston TX, US
Simon C. Cornelius - Tomball TX, US
Joseph L. Stark - Richmond TX, US
Xiomara M. Price - League City TX, US

Baker Hughes Incorporated - Houston TX

C10M 177/00, B01D 21/02

210749, 508110

Multi-valent metals, such as iron, may be removed from crude oil by introducing at least one metal removal chemical to the crude oil before, during or after the crude oil is charged to a settling tank. After mixing the metal removal chemical with the crude oil, the crude oil is kept still or held quiescent for an effective period of time to allow the metal species to settle to the bottom of the tank. Oil having reduced metal content may be removed from the top of the tank and/or metal-rich oil may be drained from the bottom of the tank or both. The crude oil having reduced metal content will cause fewer problems downstream in the refinery.