Patents by Inventor Kekeli A. Ekoue-Kovi
Kekeli A. Ekoue-Kovi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11981871Abstract: Green demulsifiers useful for demulsifying emulsions of water and crude oil are made by reacting together an alcohol, a multifunctional acid and/or anhydride, and a fatty acid, and optionally a polyol that is polyethylene glycol and/or polypropylene glycol. The green demulsifier has ester bonds between the reactant moieties. These ester bonds can hydrolyze which results in relatively high biodegradation.Type: GrantFiled: March 13, 2023Date of Patent: May 14, 2024Assignee: Baker Hughes Oilfield Operations LLCInventors: Kekeli A. Ekoue-Kovi, Wojciech Jakubowski, Kui Xu, Xiaofeng Wang, Onome Ugono
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Publication number: 20240132787Abstract: Non-acidic sulfur compounds (e.g., thiols) can be selectively extracted from a hydrocarbon stream containing them (e.g., crude oil) by contacting the hydrocarbon stream with a carbonate solvent that contains at least one organic carbonate (e.g., propylene carbonate) in an amount effective to selectively absorb and extract the non-acidic sulfur compounds therefrom. The carbonate solvent may optionally also comprise an additional solvent (e.g., caprolactam), a soluble metal salt (e.g., a metal salt where the metal is iron), and/or a mercaptan scavenger that is a heterocyclic amine (e.g., oxazolidine).Type: ApplicationFiled: October 5, 2022Publication date: April 25, 2024Applicant: Baker Hughes Oilfield Operations LLCInventors: Sankaran Murugesan, Jerry J. Weers, Sai Reddy Pinappu, Onome Ugono, Kekeli A. Ekoue-Kovi
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Patent number: 11820938Abstract: Dispersants including at least one organic carbonate can keep deposits dispersed within hydrocarbons, where the solids are asphaltenes and derivatives from triazine-based H2S scavengers.Type: GrantFiled: July 31, 2022Date of Patent: November 21, 2023Assignee: BAKER HUGHES OILFIELD OPERATIONS LLCInventors: Onome Ugono, Sankaran Murugesan, Jerry J. Weers, Kekeli A. Ekoue-Kovi
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Publication number: 20230348806Abstract: Reversion problems with heavy oils, such as heavy fuel oils, are mitigated by introducing an effective amount of an additive that contains both a phase change material and a pour point depressant, even synergistically mitigated.Type: ApplicationFiled: April 28, 2022Publication date: November 2, 2023Applicant: Baker Hughes Oilfield Operations LLCInventors: Asha Patel, Kekeli A. Ekoue-Kovi, Sankaran Murugesan
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Publication number: 20230166992Abstract: A method for selective extraction of lithium from geothermal brines using host-guest complexes of host molecules such as calixarene, dendrimeric polymers, hyper-branched polymers, and/or acid-catalyzed resins complexed with synergists such as organic acids, condensation polymers, olefin/maleic anhydride copolymers, and/or chelants.Type: ApplicationFiled: November 30, 2021Publication date: June 1, 2023Applicant: Baker Hughes Oilfield Operations LLCInventors: Sankaran Murugesan, Mary Jane Legaspi Felipe, Jerry J. Weers, Onome Ugono, Kekeli A. Ekoue-Kovi, Sai Reddy Pinappu
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Patent number: 11339118Abstract: Disclosed herein are scavenging compounds and compositions useful in applications relating to the production, transportation, storage, and separation of crude oil and natural gas. Also disclosed herein are methods of using the compounds and compositions as scavengers, particularly in applications relating to the production, transportation, storage, and separation of crude oil and natural gas.Type: GrantFiled: March 12, 2020Date of Patent: May 24, 2022Assignee: Ecolab USA Inc.Inventors: Ryan Matthew Harrington, Prakasa Rao Anantaneni, Lawrence J. Karas, Kekeli Ekoue-Kovi
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Patent number: 10703710Abstract: Disclosed herein are scavenging compounds and compositions useful in applications relating to the production, transportation, storage, and separation of crude oil and natural gas. Also disclosed herein are methods of using the compounds and compositions as scavengers, particularly in applications relating to the production, transportation, storage, and separation of crude oil and natural gas.Type: GrantFiled: December 18, 2018Date of Patent: July 7, 2020Assignee: ECOLAB USA INC.Inventors: Ryan Matthew Harrington, Prakasa Rao Anantaneni, Lawrence J. Karas, Kekeli Ekoue-Kovi
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Publication number: 20200207703Abstract: Disclosed herein are scavenging compounds and compositions useful in applications relating to the production, transportation, storage, and separation of crude oil and natural gas.Type: ApplicationFiled: March 12, 2020Publication date: July 2, 2020Applicant: ECOLAB USA INC.Inventors: Ryan Matthew Harrington, Prakasa Rao Anantaneni, Lawrence J. Karas, Kekeli Ekoue-Kovi
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Patent number: 10457817Abstract: The present invention generally relates to methods and compounds for preventing metal corrosion. More specifically, the method comprises contacting a hydrocarbon-containing liquid with a composition in an effective amount to prevent metal corrosion.Type: GrantFiled: May 2, 2017Date of Patent: October 29, 2019Assignee: Ecolab USA Inc.Inventors: Kekeli Ekoue-Kovi, Neetu Tomar, Deepak Jadhav, Kim B. Peyton, Jennifer L. Sorrells, Ian Michael Jones
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Publication number: 20190119197Abstract: Disclosed herein are scavenging compounds and compositions useful in applications relating to the production, transportation, storage, and separation of crude oil and natural gas. Also disclosed herein are methods of using the compounds and compositions as scavengers, particularly in applications relating to the production, transportation, storage, and separation of crude oil and natural gas.Type: ApplicationFiled: December 18, 2018Publication date: April 25, 2019Applicant: ECOLAB USA INC.Inventors: Ryan Matthew Harrington, Prakasa Rao Anantaneni, Lawrence J. Karas, Kekeli Ekoue-Kovi
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Patent number: 10196343Abstract: Disclosed herein are scavenging compounds and compositions useful in applications relating to the production, transportation, storage, and separation of crude oil and natural gas. Also disclosed herein are methods of using the compounds and compositions as scavengers, particularly in applications relating to the production, transportation, storage, and separation of crude oil and natural gas.Type: GrantFiled: November 8, 2016Date of Patent: February 5, 2019Assignee: ECOLAB USA INC.Inventors: Ryan Matthew Harrington, Prakasa Rao Anantaneni, Lawrence J. Karas, Kekeli Ekoue-Kovi
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Publication number: 20170335204Abstract: The present invention generally relates to compositions and methods for scavenging hydrogen sulfide and/or mercaptans from fluids. More particularly, the invention relates to the use of compositions comprising a surfactant and the reaction product between a polyamine and a formaldehyde as a hydrogen sulfide or a mercaptan scavenger for hydrocarbon-containing fluids, particularly for natural gas, crude oil, field oil, fuel oil, naphtha, gasoline, kerosene, diesel, slurry oil, gas oil, resid, refinery gas, coal gas, tar, asphalt, coke gas, ammonia synthesis gas, gas from an industrial gas stream, or a sulfurization plant.Type: ApplicationFiled: May 19, 2017Publication date: November 23, 2017Inventors: Kekeli Ekoue-Kovi, Ian Michael Jones
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Publication number: 20170313891Abstract: The present invention generally relates to methods and compounds for preventing metal corrosion. More specifically, the method comprises contacting a hydrocarbon-containing liquid with a composition in an effective amount to prevent metal corrosion.Type: ApplicationFiled: May 2, 2017Publication date: November 2, 2017Inventors: Kekeli Ekoue-Kovi, Neetu Tomar, Deepak Jadhav, Kim B. Peyton, Jennifer L. Sorrells, Ian Michael Jones
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Publication number: 20170088505Abstract: Disclosed herein are scavenging compounds and compositions useful in applications relating to the production, transportation, storage, and separation of crude oil and natural gas. Also disclosed herein are methods of using the compounds and compositions as scavengers, particularly in applications relating to the production, transportation, storage, and separation of crude oil and natural gas.Type: ApplicationFiled: November 8, 2016Publication date: March 30, 2017Applicant: ECOLAB USA INC.Inventors: Ryan Matthew Harrington, Prakasa Rao Anantaneni, Lawrence J. Karas, Kekeli Ekoue-Kovi
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Patent number: 9523045Abstract: Disclosed herein are scavenging compounds and compositions useful in applications relating to the production, transportation, storage, and separation of crude oil and natural gas. Also disclosed herein are methods of using the compounds and compositions as scavengers, particularly in applications relating to the production, transportation, storage, and separation of crude oil and natural gas.Type: GrantFiled: January 30, 2014Date of Patent: December 20, 2016Assignee: ECOLAB USA INC.Inventors: Ryan Matthew Harrington, Prakasa Rao Anantaneni, Lawrence J. Karas, Kekeli Ekoue-Kovi
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Patent number: 9273254Abstract: The present invention generally relates to compositions and methods for scavenging hydrogen sulfide and/or mercaptans from fluids. More particularly, the invention relates to the use of amino acetal and ketal compounds as a hydrogen sulfide or a mercaptan scavenger for hydrocarbon fluids, particularly for natural gas, crude oil, field oil, fuel oil, naphtha, gasoline, kerosene, diesel, refinery gas, coal gas, tar, asphalt, coke gas, ammonia synthesis gas, gas from a sulfurization plant, or industrial gas streams.Type: GrantFiled: December 20, 2013Date of Patent: March 1, 2016Assignee: Ecolab USA Inc.Inventors: Dennis R. Compton, Kekeli Ekoue-Kovi
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Publication number: 20150175903Abstract: The present invention generally relates to compositions and methods for scavenging hydrogen sulfide and/or mercaptans from fluids. More particularly, the invention relates to the use of amino acetal and ketal compounds as a hydrogen sulfide or a mercaptan scavenger for hydrocarbon fluids, particularly for natural gas, crude oil, field oil, fuel oil, naphtha, gasoline, kerosene, diesel, refinery gas, coal gas, tar, asphalt, coke gas, ammonia synthesis gas, gas from a sulfurization plant, or industrial gas streams.Type: ApplicationFiled: December 20, 2013Publication date: June 25, 2015Applicant: Ecolab USA Inc.Inventors: Dennis R. Compton, Kekeli Ekoue-Kovi
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Publication number: 20140209510Abstract: Disclosed herein are scavenging compounds and compositions useful in applications relating to the production, transportation, storage, and separation of crude oil and natural gas.Type: ApplicationFiled: January 30, 2014Publication date: July 31, 2014Applicant: ECOLAB USA INC.Inventors: Ryan Matthew Harrington, Prakasa Rao Anantaneni, Lawrence J. Karas, Kekeli Ekoue-Kovi