Christophe R Laroche

US Patent:

20210138388, May 13, 2021

Filed:

Apr 19, 2017

Appl. No.:

16/491863

Inventors:

- Midland MI, US
Christophe R. Laroche - Lake Jackson TX, US
Diego Ortiz Vega - Houston TX, US
Linda L. Pirtle - Brazoria TX, US

International Classification:

B01D 53/14
B01D 53/52
B01D 53/96
B01D 53/78
C10L 3/10

Abstract:

Disclosed is a process for regenerating a hybrid solvent used to remove contaminants from a fluid stream and to provide an improved yield of purified fluid. Said process comprises a purification unit () and at least one regeneration unit () wherein make-up water () is added to the regenerated lean hybrid solvent () prior to reuse in the first purification unit and no water is recycled into the regeneration unit.

US Patent:

20210138389, May 13, 2021

Filed:

Apr 19, 2017

Appl. No.:

16/491905

Inventors:

- Midland MI, US
Christophe R. Laroche - Lake Jackson TX, US
Diego Ortiz Vega - Houston TX, US
Linda L. Pirtle - Brazoria TX, US

International Classification:

B01D 53/14
B01D 53/52
B01D 53/96
B01D 53/78
C10L 3/10
C07C 7/11
C07C 7/12

Abstract:

Disclosed is a process for regenerating a hybrid solvent used to remove contaminants from a fluid stream and to provide an improved yield of purified fluid. Said process comprises at least one purification unit () and at least one regeneration unit () wherein condensed water from the regeneration unit is recycled back into the purification unit and none of the condensed water is reintroduced into the regeneration unit.

US Patent:

20200016528, Jan 16, 2020

Filed:

Apr 19, 2017

Appl. No.:

16/490707

Inventors:

- Midland MI, US
Christophe R. LAROCHE - Lake Jackson TX, US
Diego ORTIZ VEGA - Houston TX, US
Linda L. PIRTLE - Brazoria TX, US

Assignee:

Dow Global Technologies LLC - Midland MI

International Classification:

B01D 53/14
C10L 3/10

Abstract:

Disclosed is a process for regenerating a hybrid solvent used to remove contaminants from a fluid stream and to provide an improved yield of purified fluid. Said process comprises at least one purification unit () and at least one regeneration unit () wherein condensed water () from the regeneration unit is combined with the regenerated lean hybrid solvent () prior to reuse in the purification unit and none of the condensed water is recycled into the regeneration unit.

US Patent:

20190111380, Apr 18, 2019

Filed:

Apr 19, 2017

Appl. No.:

16/090981

Inventors:

- Midland MI, US
Christophe R. Laroche - Lake Jackson TX, US
Diego Ortiz Vega - Houston TX, US
Linda L. Pirtle - Brazoria TX, US
Gerardo Padilla - Lake Jackson TX, US

International Classification:

B01D 53/14
B01D 53/96

Abstract:

Disclosed is a process for regenerating a hybrid solvent used to remove contaminants from a fluid stream and to provide an improved yield of purified fluid. Said process comprises at least two purification units and at least one regeneration unit wherein regenerated lean hybrid solvent and condensed water from the regeneration unit is used to reclaim additional purified fluid in the second purification unit.

US Patent:

20190112538, Apr 18, 2019

Filed:

Mar 16, 2017

Appl. No.:

16/090952

Inventors:

- Midland MI, US
Christophe Laroche - Lake Jackson TX, US

International Classification:

C10L 3/10
B01D 53/14

Abstract:

Disclosed is a solvent composition and use thereof for removal of one or more acid gas from a fluid stream comprising: i) a physical solvent, ii) an alkali metal organoborate, where Rand Rmay be the same or different and are independently an alkylene group comprising 2 to 6 carbons, Rand Rmay be the same or different and are independently H or a linear or branched alkyl group comprising from 1 to 18 carbons, and Z is an alkali metal ion; and iii) optionally an amine compound.

US Patent:

20180290101, Oct 11, 2018

Filed:

May 17, 2016

Appl. No.:

15/573975

Inventors:

- Midland MI, US
Christophe R. Laroche - Lake Jackson TX, US
Jonathan W, Leister - Manvel TX, US

International Classification:

B01D 53/14

Abstract:

The present invention relates to an aqueous alkanolamine solution and use therein a process for the selective removal of hydrogen sulfide from gaseous mixtures comprising hydrogen sulfide. The aqueous alkanolamine solution consists of—an amino compound with the formula: RRNCHCH(OH)CHOH wherein Rand Rindependently represent methyl, ethyl, propyl or isopropyl groups—and bis(2-hydroxyethyl)methylamine,—optionally one or more of a physical solvent, an antifoaming agent, an antioxidant, a corrosion inhibitor, a film former, a chelating agent or a pH adjuster and—water The process for selectively removing hydrogen sulfide, comprising the step of contacting the gaseous mixture with the aqueous alkanolamine solution, preferably wherein the temperature of the aqueous alkanolamine solution is equal to or greater than 140 F.

US Patent:

20180208567, Jul 26, 2018

Filed:

Jul 8, 2016

Appl. No.:

15/743772

Inventors:

- Midland MI, US
Ravindra S. Dixit - Lake Jackson TX, US
Stephen W. King - League City TX, US
Christophe R. Laroche - Lake Jackson TX, US

International Classification:

C07D 295/088
B01D 3/14
C07B 63/02
B01D 3/00

Abstract:

The present invention relates to an improved process for making hydroxyethyl piperazine compounds especially mono-hydroxyethyl piperazine. The improvement comprises reacting piperazine and an alkylene oxide, preferably ethylene oxide in a reactive distillation column.

US Patent:

20160206992, Jul 21, 2016

Filed:

Aug 27, 2014

Appl. No.:

14/914979

Inventors:

- Midland MI, US
Christophe R. Laroche - Lake Jackson TX, US

International Classification:

B01D 53/14

Abstract:

A method of treating oil and gas streams comprising HS and a carbon oxide, the method including the step of treating the oil and gas stream with an amine solution having an alkanolamine and a quaternary ammonium salt, wherein the amine solution selectively removes the HS over the carbon oxide.