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公开(公告)号：US11866666B1
公开(公告)日：2024-01-09
申请号：US18157463
申请日：2023-01-20
CPC分类号： C10L10/04 , C10L1/1855 , C10L3/12 , C10L2230/08 , C10L2270/10
摘要： According to embodiments disclosed herein, a method of reducing corrosion during petroleum transportation, petroleum storage, or both, may comprise inputting a corrosion inhibitor formulation into a petroleum pipeline, a petroleum storage tank, or both, wherein the corrosion inhibitor formulation consists essentially of solvent and a pyridinium hydroxyl alkyl ether compound.
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2.发明公开公开(公告)号：US20230167221A1
公开(公告)日：2023-06-01
申请号：US18059627
申请日：2022-11-29
IPC分类号： C08F293/00 , C09D5/08 , C09D133/14
CPC分类号： C08F293/00 , C09D5/08 , C09D133/14
摘要： A block copolymer including blocks of the general formula:
where R1 is a cyclic compound having 5 to 8 atoms; R2, R3, and R4 is a linear or cyclic alkyl group; x is a molar fraction from 0.1 to 0.9; y is a molar fraction from 0.1 to 0.9; a sum of x+y is 1; z is from 1 to 10; and the block copolymer has a molecular weight from 500 Da to 50,000 Da.-
公开(公告)号：US20240294821A1
公开(公告)日：2024-09-05
申请号：US18176129
申请日：2023-02-28
IPC分类号： C09K8/54
CPC分类号： C09K8/54 , C09K2208/20 , C09K2208/32
摘要： The disclosure relates to corrosion inhibition compositions and methods of using such compositions to inhibit corrosion in a sour environment. The compositions and methods can be used in various settings, such as an oil and gas carrying pipeline and/or a component in an oil and gas facility that would handle a sour aqueous fluid.
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公开(公告)号：US11926758B2
公开(公告)日：2024-03-12
申请号：US17140678
申请日：2021-01-04
IPC分类号： C09D179/06
CPC分类号： C09D179/06
摘要： Coated substrates include a metal substrate and a polytriazole polymer applied to a surface of the metal substrate. The polytriazole polymer may include substituted phenyls, substituted benzyls, or both substituted phenyls and substituted benzyls. The substituted phenyls and the substituted benzyls may be independently substituted with hydrogen, bromo, fluoro, chloro, iodo, hydroxy, methyl, trifluoromethyl, dimethylamino, tert-butyl, carboxyl, triphenylmethyl, tris(4-fluorophenyl)methyl, tris(4-methylphenyl)methyl, (4-hydroxyphenyl)diphenylmethyl, and difluoromethoxy groups. The polytriazole polymer may have a degree of polymerization from 50 to 400.
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公开(公告)号：US11555777B2
公开(公告)日：2023-01-17
申请号：US16511466
申请日：2019-07-15
摘要： A system, an apparatus and a method for simulating and assessing a damaged corrosion film in a pipe segment for pitting corrosion potential under field conditions, including variations in cathode to anode ratios. The apparatus has an anode case that holds a working electrode, a first body portion attachable to one end of the pipe segment, and a second body portion attachable to another end of the pipe segment, the first and second body portions defining a corrosion simulation cell. The anode case can be contained within the corrosion simulation cell, and the working electrode can include a test matrix.
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公开(公告)号：US11345867B2
公开(公告)日：2022-05-31
申请号：US17304815
申请日：2021-06-25
发明人： Muthukumar Nagu , Nayef M. Alanazi
IPC分类号： C10G7/10 , C10G75/02 , C07C211/45
摘要： Corrosion inhibitor compositions and methods for inhibiting corrosion on a metal surface exposed to a hydrocarbon fluid are provided. The corrosion inhibition compositions can include a corrosion inhibitor, such as 3-dimethylamino benzoic acid, 4-dimethylamino benzoic acid, or 2,5-dihydroxyterephthalic acid. The corrosion inhibitor composition can further comprise dimethyl sulfoxide, and heavy aromatic naphtha. The corrosion inhibitor composition can be phosphate-free and can inhibit naphthenic acid corrosion. In the methods, a corrosion inhibitor composition is added to the hydrocarbon fluid exposed to the metal surface to prevent or inhibit corrosion on the metal surface, including naphthenic acid corrosion.
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公开(公告)号：US20220017774A1
公开(公告)日：2022-01-20
申请号：US17140678
申请日：2021-01-04
IPC分类号： C09D179/06
摘要： Coated substrates include a metal substrate and a polytriazole polymer applied to a surface of the metal substrate. The polytriazole polymer may include substituted phenyls, substituted benzyls, or both substituted phenyls and substituted benzyls. The substituted phenyls and the substituted benzyls may be independently substituted with hydrogen, bromo, fluoro, chloro, iodo, hydroxy, methyl, trifluoromethyl, dimethylamino, tert-butyl, carboxyl, triphenylmethyl, tris(4-fluorophenyl)methyl, tris(4-methylphenyl)methyl, (4-hydroxyphenyl)diphenylmethyl, and difluoromethoxy groups. The polytriazole polymer may have a degree of polymerization from 50 to 400.
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公开(公告)号：US20210018425A1
公开(公告)日：2021-01-21
申请号：US16511466
申请日：2019-07-15
摘要： A system, an apparatus and a method for simulating and assessing a damaged corrosion film in a pipe segment for pitting corrosion potential under field conditions, including variations in cathode to anode ratios. The apparatus has an anode case that holds a working electrode, a first body portion attachable to one end of the pipe segment, and a second body portion attachable to another end of the pipe segment, the first and second body portions defining a corrosion simulation cell. The anode case can be contained within the corrosion simulation cell, and the working electrode can include a test matrix.
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公开(公告)号：US20240309223A1
公开(公告)日：2024-09-19
申请号：US18183487
申请日：2023-03-14
IPC分类号： C09D5/08 , C07D213/30 , C09D7/20
CPC分类号： C09D5/086 , C07D213/30 , C09D7/20 , C08K5/3432
摘要： Described herein are corrosion-resistant substrates and methods of producing a corrosion-resistant substrates. In one or more embodiments, a corrosion-resistant substrate may include a substrate including a first surface and a corrosion-resistant film positioned on at least a portion of the first surface of the substrate. The corrosion-resistant film may be solid. In embodiments, the film may include a 1-(2-hydroxyalkyl)pyridinium compound.
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公开(公告)号：US11667829B1
公开(公告)日：2023-06-06
申请号：US17700977
申请日：2022-03-22
CPC分类号： C09K8/54 , C10G75/02 , C09K2208/32 , C10G2300/4075
摘要： Compositions inhibit corrosion in various commercial settings, such as in a refinery and/or in an oil and gas application. The compositions include at least one fatty acid and at least two amphipathic molecules selected from the group consisting of dodecenyl succinic acid, dimer fatty acid and benzalkonium chloride.
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