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公开(公告)号：US10941366B2
公开(公告)日：2021-03-09
申请号：US16233318
申请日：2018-12-27
Applicant: ECOLAB USA INC.
Inventor： Nestor Soriano, Jr. , Ravindranath Mukkamala
Abstract: Disclosed are cloud point depressants and methods of making and using them. The disclosed cloud point depressants comprise copolymers of a maleic moiety polymerized with alpha olefins and then contacted with an aliphatic tertiary amine to provide a cloud depressant reaction product. When the disclosed reactions products are added to middle distillate fuels or blends of middle distillate fuels with biodiesel, the cloud point depressants inhibit the precipitation of waxes and/or biowaxes in the fuels and the fuels exhibit reduced precipitation, gelling, and/or crystallization when subjected to low or cold temperatures.
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公开(公告)号：US20170226841A1
公开(公告)日：2017-08-10
申请号：US15494728
申请日：2017-04-24
Applicant: Ecolab USA Inc.
Inventor： Joseph Paul Bailey , Aaron D. Martinez , Erick J. Acosta , Ravindranath Mukkamala , Maximilian A. Silvestri , Jose M. Macias
CPC classification number: E21B43/34 , C09K8/528 , C09K8/54 , C09K2208/20 , E21B43/25
Abstract: A method of performing a squeeze treatment comprises pumping a treatment fluid under pressure through a wellbore into a subterranean formation, wherein the treatment fluid includes a hydrogen sulfide scavenging compound that adsorbs onto the subterranean formation in a region around the wellbore. Production fluids are then allowed to flow from the subterranean formation into the wellbore, wherein the production fluids contact the adsorbed hydrogen sulfide scavenging compound as the production fluids flow through the region around the wellbore, and wherein the production fluids contain hydrogen sulfide that reacts with the hydrogen sulfide scavenging compound to reduce an amount of hydrogen sulfide in the production fluids before the production fluids flow into the wellbore.
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公开(公告)号：US20200277498A1
公开(公告)日：2020-09-03
申请号：US16801726
申请日：2020-02-26
Applicant: ECOLAB USA INC.
Inventor： Xiaowei Tong , Jennifer L. Sorrells , Elizabeth Balapitiya , Ravindranath Mukkamala
Abstract: Scavenging compounds and compositions useful in reducing sulfide emissions from asphalt, such as polymer-treated asphalt, are disclosed. The scavenger compositions may include sulfide-scavenging agents. The scavenger compositions also include a metal-containing compound and optionally a solvent. Any of the compositions, sulfide-scavenging agents and metal-containing compounds may be anhydrous. Methods of using the compositions to reduce hydrogen sulfide emissions from asphalt are also disclosed.
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4.发明申请公开(公告)号：US20200031759A1
公开(公告)日：2020-01-30
申请号：US16559926
申请日：2019-09-04
Applicant: ECOLAB USA INC.
Inventor： Prakasa Rao Anantaneni , Ryan Matthew Harrington , David Tarverdi , Lawrence J. Karas , Ravindranath Mukkamala , Subhasis De
Abstract: The disclosure provides compositions and methods that are useful in removing, lowering, or otherwise controlling hydrogen sulfide and mercaptans. The compositions and methods can be used in any industry where hydrogen sulfide poses problems, such as when dealing with crude oil based, natural gas based, and/or coal based products. In some embodiments, the compositions include one or more alkoxylated amino formaldehyde adducts.
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5.发明授权公开(公告)号：US10669228B2
公开(公告)日：2020-06-02
申请号：US16559926
申请日：2019-09-04
Applicant: ECOLAB USA INC.
Inventor： Prakasa Rao Anantaneni , Ryan Matthew Harrington , David Tarverdi , Lawrence J. Karas , Ravindranath Mukkamala , Subhasis De
IPC: C07C217/42 , C07C211/13 , C07C211/14 , C07C215/12 , C07C215/14 , C07C215/18 , C10G29/20 , C10G21/20 , C10L3/10 , C02F1/68 , B01D53/52 , C07C217/28 , B01D19/00 , C02F101/10
Abstract: The disclosure provides compositions and methods that are useful in removing, lowering, or otherwise controlling hydrogen sulfide and mercaptans. The compositions and methods can be used in any industry where hydrogen sulfide poses problems, such as when dealing with crude oil based, natural gas based, and/or coal based products. In some embodiments, the compositions include one or more alkoxylated amino formaldehyde adducts.
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Patent Agency Ranking
公开(公告)号：US10442755B2
公开(公告)日：2019-10-15
申请号：US15717338
申请日：2017-09-27
Applicant: ECOLAB USA INC.
Inventor： Prakasa Rao Anantaneni , Ryan Matthew Harrington , David Tarverdi , Lawrence J. Karas , Ravindranath Mukkamala , Subhasis De
IPC: B01D53/52 , C07C217/28 , C02F1/68 , C10G21/20 , C10G29/20 , C10L3/10 , B01D19/00 , C02F101/10
Abstract: The disclosure provides compositions and methods that are useful in removing, lowering, or otherwise controlling hydrogen sulfide and mercaptans. The compositions and methods can be used in any industry where hydrogen sulfide poses problems, such as when dealing with crude oil based, natural gas based, and/or coal based products. In some embodiments, the compositions include one or more alkoxylated amino formaldehyde adducts.
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公开(公告)号：US11981817B2
公开(公告)日：2024-05-14
申请号：US16801726
申请日：2020-02-26
Applicant: ECOLAB USA INC.
Inventor： Xiaowei Tong , Jennifer L. Sorrells , Elizabeth Balapitiya , Ravindranath Mukkamala
CPC classification number: C08L95/00 , C08J3/203 , C08J2395/00 , C08L2555/32 , C08L2555/50 , C08L2555/60
Abstract: Scavenging compounds and compositions useful in reducing sulfide emissions from asphalt, such as polymer-treated asphalt, are disclosed. The scavenger compositions may include sulfide-scavenging agents. The scavenger compositions also include a metal-containing compound and optionally a solvent. Any of the compositions, sulfide-scavenging agents and metal-containing compounds may be anhydrous. Methods of using the compositions to reduce hydrogen sulfide emissions from asphalt are also disclosed.
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公开(公告)号：US10370951B2
公开(公告)日：2019-08-06
申请号：US15899017
申请日：2018-02-19
Applicant: Ecolab USA Inc.
Inventor： Joseph Paul Bailey , Aaron D. Martinez , Erick J. Acosta , Ravindranath Mukkamala , Maximilian A. Silvestri , Jose M. Macias
Abstract: A method of performing a squeeze treatment comprises pumping a treatment fluid under pressure through a wellbore into a subterranean formation, wherein the treatment fluid includes a hydrogen sulfide scavenging compound that adsorbs onto the subterranean formation in a region around the wellbore. Production fluids are then allowed to flow from the subterranean formation into the wellbore, wherein the production fluids contact the adsorbed hydrogen sulfide scavenging compound as the production fluids flow through the region around the wellbore, and wherein the production fluids contain hydrogen sulfide that reacts with the hydrogen sulfide scavenging compound to reduce an amount of hydrogen sulfide in the production fluids before the production fluids flow into the wellbore.
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公开(公告)号：US20180171771A1
公开(公告)日：2018-06-21
申请号：US15899017
申请日：2018-02-19
Applicant: Ecolab USA Inc.
Inventor： Joseph Paul Bailey , Aaron D. Martinez , Erick J. Acosta , Ravindranath Mukkamala , Maximilian A. Silvestri , Jose M. Macias
CPC classification number: E21B43/34 , C09K8/528 , C09K8/54 , C09K2208/20 , E21B43/25
Abstract: A method of performing a squeeze treatment comprises pumping a treatment fluid under pressure through a wellbore into a subterranean formation, wherein the treatment fluid includes a hydrogen sulfide scavenging compound that adsorbs onto the subterranean formation in a region around the wellbore. Production fluids are then allowed to flow from the subterranean formation into the wellbore, wherein the production fluids contact the adsorbed hydrogen sulfide scavenging compound as the production fluids flow through the region around the wellbore, and wherein the production fluids contain hydrogen sulfide that reacts with the hydrogen sulfide scavenging compound to reduce an amount of hydrogen sulfide in the production fluids before the production fluids flow into the wellbore.
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公开(公告)号：US09638018B2
公开(公告)日：2017-05-02
申请号：US14108617
申请日：2013-12-17
Applicant: Ecolab USA Inc.
Inventor： Aaron D. Martinez , Ravindranath Mukkamala , Erick J. Acosta Otero , Joseph P. Bailey
CPC classification number: E21B43/34 , B01D53/52 , B01D2252/202 , E21B43/25
Abstract: Alpha-hydroxy alkyl esters have been found to perform as hydrogen sulfide scavengers. A method of scavenging hydrogen sulfide includes contacting a fluid containing hydrogen sulfide with a treatment fluid including an alpha-hydroxy alkyl ester. Accordingly, the alpha-hydroxy alkyl ester reacts with the hydrogen sulfide to reduce the amount of hydrogen sulfide in the fluid. A broad range of alpha-hydroxy alkyl esters are disclosed.
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