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公开(公告)号：US20200339890A1
公开(公告)日：2020-10-29
申请号：US16902356
申请日：2020-06-16
摘要： It has been discovered that contaminants such as metals and/or amines can be transferred from a hydrocarbon phase to a water phase in an emulsion breaking process by using a composition that contains water-soluble C5-C12 polyhydroxy carboxylic acids, ammonium salts thereof, alkali metal salts thereof, and mixtures of all of these. The composition may also optionally include a mineral acid to reduce the pH of the desalter wash water. The method permits transfer of metals and/or amines into the aqueous phase with little or no hydrocarbon phase under-carry into the aqueous phase. Resolving the emulsion into the hydrocarbon phase and the aqueous phase occurs in a refinery desalting process using electrostatic coalescence. The composition is particularly useful in treating crude oil emulsions, and in removing calcium and other metals therefrom. The polyhydroxy carboxylic acid additionally inhibits metal corrosion of metal pipe or other equipment used in a crude unit.
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公开(公告)号：US11434434B2
公开(公告)日：2022-09-06
申请号：US17486689
申请日：2021-09-27
发明人： Jagrut Jani , Tran M. Nguyen , Jerry J. Weers , Zhengwei Liu
摘要： Metals, such as mercury, may be removed from aqueous, hydrocarbon, or mixed oilfield or refinery fluids by: applying a sulfur compound having the general formula HS—X, where X is a heteroatom substituted alkyl, cycloalkyl, aryl, and/or alkylaryl group either alone or in combination with or as a blend with at least one demulsifier, a buffering agent, a pour point depressant, and/or a water clarifier to chelate the at least one metal and form a chelate complex of the sulfur compound with the at least one metal and then separating the chelate complex from the fluid.
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公开(公告)号：US20220010222A1
公开(公告)日：2022-01-13
申请号：US17486689
申请日：2021-09-27
发明人： Jagrut Jani , Tran M. Nguyen , Jerry J. Weers , Zhengwei Liu
摘要： Metals, such as mercury, may be removed from aqueous, hydrocarbon, or mixed oilfield or refinery fluids by: applying a sulfur compound having the general formula HS—X, where X is a heteroatom substituted alkyl, cycloalkyl, aryl, and/or alkylaryl group either alone or in combination with or as a blend with at least one demulsifier, a buffering agent, a pour point depressant, and/or a water clarifier to chelate the at least one metal and form a chelate complex of the sulfur compound with the at least one metal and then separating the chelate complex from the fluid.
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公开(公告)号：US20210246376A1
公开(公告)日：2021-08-12
申请号：US17244522
申请日：2021-04-29
发明人： Jagrut Jani , Tran M. Nguyen , Jerry J. Weers , Zhengwei Liu
摘要： Metals, such as mercury, may be removed from glycol fluids by applying a sulfur compound having the general formula HS—X, wherein X is a heteroatom-substituted alkyl, cycloalkyl, aryl, and/or alkylaryl group either alone or in combination with or as a blend with at least one antifoam additive, at least one demulsifier and/or a buffering agent, to chelate the at least one metal and form a chelate complex of the sulfur compound with the at least one metal and then separating the chelate complex from the fluid.
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公开(公告)号：US20210079304A1
公开(公告)日：2021-03-18
申请号：US16573401
申请日：2019-09-17
发明人： Jagrut Jani , Tran M. Nguyen , Jerry J. Weers , Zhengwei Liu
摘要： Metals, such as mercury, may be removed from aqueous, hydrocarbon, or mixed oilfield or refinery fluids by: applying a sulfur compound having the general formula HS-X, wherein X is a heteroatom substituted alkyl, cycloalkyl, aryl, and/or alkylaryl group either alone or in combination with or as a blend with at least one demulsifier, a buffering agent, a pour point depressant, and/or a water clarifier to chelate the at least one metal and form a chelate complex of the sulfur compound with the at least one metal and then separating the chelate complex from the fluid.
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公开(公告)号：US10760008B2
公开(公告)日：2020-09-01
申请号：US15997127
申请日：2018-06-04
摘要： It has been discovered that contaminants such as metals and/or amines can be transferred from a hydrocarbon phase to a water phase in an emulsion breaking process by using a composition that contains water-soluble C5-C12 polyhydroxy carboxylic acids, ammonium salts thereof, alkali metal salts thereof, and mixtures of all of these. The composition may also optionally include a mineral acid to reduce the pH of the desalter wash water. The method permits transfer of metals and/or amines into the aqueous phase with little or no hydrocarbon phase under-carry into the aqueous phase. Resolving the emulsion into the hydrocarbon phase and the aqueous phase occurs in a refinery desalting process using electrostatic coalescence. The composition is particularly useful in treating crude oil emulsions, and in removing calcium and other metals therefrom. The polyhydroxy carboxylic acid additionally inhibits metal corrosion of metal pipe or other equipment used in a crude unit.
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公开(公告)号：US11718798B2
公开(公告)日：2023-08-08
申请号：US16902356
申请日：2020-06-16
CPC分类号： C10G31/08 , C08L95/005 , C10C3/026 , C10G33/02 , C10L1/182 , C10L1/1814 , C10L1/328 , C10G2300/203 , C10G2300/205 , C10L2250/082
摘要： It has been discovered that contaminants such as metals and/or amines can be transferred from a hydrocarbon phase to a water phase in an emulsion breaking process by using a composition that contains water-soluble C5-C12 polyhydroxy carboxylic acids, ammonium salts thereof, alkali metal salts thereof, and mixtures of all of these. The composition may also optionally include a mineral acid to reduce the pH of the desalter wash water. The method permits transfer of metals and/or amines into the aqueous phase with little or no hydrocarbon phase undercarry into the aqueous phase. Resolving the emulsion into the hydrocarbon phase and the aqueous phase occurs in a refinery desalting process using electrostatic coalescence. The composition is particularly useful in treating crude oil emulsions, and in removing calcium and other metals therefrom. The polyhydroxy carboxylic acid additionally inhibits metal corrosion of metal pipe or other equipment used in a crude unit.
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公开(公告)号：US11326109B2
公开(公告)日：2022-05-10
申请号：US17244522
申请日：2021-04-29
发明人： Jagrut Jani , Tran M. Nguyen , Jerry J. Weers , Zhengwei Liu
摘要： Metals, such as mercury, may be removed from glycol fluids by applying a sulfur compound having the general formula HS—X, wherein X is a heteroatom-substituted alkyl, cycloalkyl, aryl, and/or alkylaryl group either alone or in combination with or as a blend with at least one antifoam additive, at least one demulsifier and/or a buffering agent, to chelate the at least one metal and form a chelate complex of the sulfur compound with the at least one metal and then separating the chelate complex from the fluid.
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公开(公告)号：US11130918B2
公开(公告)日：2021-09-28
申请号：US16573401
申请日：2019-09-17
发明人： Jagrut Jani , Tran M. Nguyen , Jerry J. Weers , Zhengwei Liu
摘要： Metals, such as mercury, may be removed from aqueous, hydrocarbon, or mixed oilfield or refinery fluids by: applying a sulfur compound having the general formula HS-X, wherein X is a heteroatom substituted alkyl, cycloalkyl, aryl, and/or alkylaryl group either alone or in combination with or as a blend with at least one demulsifier, a buffering agent, a pour point depressant, and/or a water clarifier to chelate the at least one metal and form a chelate complex of the sulfur compound with the at least one metal and then separating the chelate complex from the fluid.
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公开(公告)号：US20180346826A1
公开(公告)日：2018-12-06
申请号：US15997127
申请日：2018-06-04
摘要： It has been discovered that contaminants such as metals and/or amines can be transferred from a hydrocarbon phase to a water phase in an emulsion breaking process by using a composition that contains water-soluble C5-C12 polyhydroxy carboxylic acids, ammonium salts thereof, alkali metal salts thereof, and mixtures of all of these. The composition may also optionally include a mineral acid to reduce the pH of the desalter wash water. The method permits transfer of metals and/or amines into the aqueous phase with little or no hydrocarbon phase under-carry into the aqueous phase. Resolving the emulsion into the hydrocarbon phase and the aqueous phase occurs in a refinery desalting process using electrostatic coalescence. The composition is particularly useful in treating crude oil emulsions, and in removing calcium and other metals therefrom. The polyhydroxy carboxylic acid additionally inhibits metal corrosion of metal pipe or other equipment used in a crude unit.
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