Abstract: Antifoulant compositions and methods are used for inhibiting fouling on structural parts of a system exposed to a fluid hydrocarbon or petrochemical stream. Polyamine antifoulants are added to such systems. The polyamine antifoulants may be conjointly used with dispersants and/or fatty acids. The fatty acids have been found to reduce thermal degradation of the polyamine antifoulants.

Abstract: Described herein are systems and methods for evaluating and mitigating the wax risks of a given hydrocarbon composition such as crude oil. The disclosed systems and methods enable rapid and ready prediction of wax risks using algorithms based on a small sample of the hydrocarbon composition. The wax risks are predicted using predictive models developed from machine learning. The disclosed systems and methods include mitigation strategies for wax risks that can include chemical additives, operation changes, and/or hydrocarbon blend.

Abstract: A wax inhibitor composition, the composition having at least one alpha-olefin maleic anhydride copolymer of the formula: wherein R1 is selected from hydrocarbyl groups containing 10-30 carbon atoms, and R2 is selected from a hydrogen or hydrocarbyl groups containing 10-80 carbon atoms, and R2, if not hydrogen, is broadly dispersed, wherein R2 comprises a weight fraction of carbon numbers greater than 30, wherein R2 can be the same or different, and n is a number of repeating units ranging from 1 to 100.

Abstract: An oil composition includes an oil and an effective amount of a wax inhibitor that includes at least one modified alpha-olefin maleic anhydride copolymer of the formula: wherein R1 is selected from hydrogen or hydrocarbyl groups containing 12-60 carbon atoms and an average carbon atom number of R1, if not hydrogen, in the copolymer is in a range from 20 to 32, R2 is selected from hydrocarbyl groups containing 6-12 carbon atoms, and n is a number of repeating units ranging from 1 to 100.

Abstract: Antifoulant compositions and methods are used for inhibiting fouling on structural parts of a system exposed to a fluid hydrocarbon or petrochemical stream. Polyamine antifoulants are added to such systems. The polyamine antifoulants may be conjointly used with dispersants and/or fatty acids. The fatty acids have been found to reduce thermal degradation of the polyamine antifoulants.

Abstract: A synergistic polymerization inhibitor composition, the composition having a copper salt, and a manganese salt; a copper salt or a manganese salt, and a cationic polymer; or a phenothiazine and a manganese salt. A method for inhibiting polymerization of unsaturated polymerizable monomers, the method providing adding a synergistic polymerization inhibitor composition to an methacrylic acid manufacturing system or component thereof, the composition having a copper salt, and a manganese salt; a copper salt or a manganese salt, and a cationic polymer; or a phenothiazine and a manganese salt.

Abstract: Antifoulant compositions and methods are used for inhibiting fouling on structural parts of a system exposed to a fluid hydrocarbon or petrochemical stream. Polyamine antifoulants are added to such systems. The polyamine antifoulants may be conjointly used with dispersants and/or fatty acids. The fatty acids have been found to reduce thermal degradation of the polyamine antifoulants.

Abstract: An oil composition includes an oil and an effective amount of a wax inhibitor that includes at least one modified alpha-olefin maleic anhydride copolymer of the formula: wherein R1 is selected from hydrogen or hydrocarbyl groups containing 12-60 carbon atoms and an average carbon atom number of R1, if not hydrogen, in the copolymer is in a range from 20 to 32, R2 is selected from hydrocarbyl groups containing 6-12 carbon atoms, and n is a number of repeating units ranging from 1 to 100.

Abstract: Described herein are systems and methods for evaluating and mitigating the wax risks of a given hydrocarbon composition such as crude oil. The disclosed systems and methods enable rapid and ready prediction of wax risks using algorithms based on a small sample of the hydrocarbon composition. The wax risks are predicted using predictive models developed from machine learning. The disclosed systems and methods include mitigation strategies for wax risks that can include chemical additives, operation changes, and/or hydrocarbon blend.

Abstract: A wax inhibitor composition, the composition having at least one alpha-olefin maleic anhydride copolymer of the formula: wherein R1 is selected from hydrocarbyl groups containing 10-30 carbon atoms, and R2 is selected from a hydrogen or hydrocarbyl groups containing 10-80 carbon atoms, and R2, if not hydrogen, is broadly dispersed, wherein R2 comprises a weight fraction of carbon numbers greater than 30, wherein R2 can be the same or different, and n is a number of repeating units ranging from 1 to 100.

Abstract: Antifoulant compositions and methods are used for inhibiting fouling on structural parts of a system exposed to a fluid hydrocarbon or petrochemical stream. Polyamine antifoulants are added to such systems. The polyamine antifoulants may be conjointly used with dispersants and/or fatty acids. The fatty acids have been found to reduce thermal degradation of the polyamine antifoulants.

Abstract: A water treatment system comprises at least one electrolytic cell comprising at least one electrode and a power source for powering the electrode. The electrode may be a metal electrode comprising a coating of polymer comprising structural units of formula I (I) wherein R1 is independently at each occurrence a C1-C6 alkyl radical or —SO3M wherein M is independently at each occurrence a hydrogen or an alkali metal a hydrogen or an alkali metal, R2 is independently at each occurrence a C1-C6 alkyl radical, a is independently at each occurrence an integer ranging from 0 to 4, and b is independently at each occurrence an integer ranging from 0 to 3. An associated method is also described.

Abstract: A water treatment system comprises an electrolytic cell comprising: a first electrode; a second electrode comprising a coating of polymer comprising structural units of formula I and a power source for powering the first and the second electrodes; wherein R1 is independently at each occurrence a C1-C6 alkyl radical or —SO3H; R2 is independently at each occurrence a C1-C6 alkyl radical; a is independently at each occurrence an integer ranging from 0 to 4; and b is independently at each occurrence an integer ranging from 0 to 3. An associated method is also described.

Abstract: A water treatment system comprises at least one electrolytic cell comprising at least one electrode and a power source for powering the electrode. The electrode may be a metal electrode comprising a coating of polymer comprising structural units of formula I (I) wherein R1 is independently at each occurrence a C1-C6 alkyl radical or —SO3M wherein M is independently at each occurrence a hydrogen or an alkali metal a hydrogen or an alkali metal, R2 is independently at each occurrence a C1-C6 alkyl radical, a is independently at each occurrence an integer ranging from 0 to 4, and b is independently at each occurrence an integer ranging from 0 to 3. An associated method is also described.

Abstract: The invention relates to a polymer derived from: reaction of glycidyl (meth)acrylate, allyl glycidyl ether or [(vinyloxy)methyl]oxirane with ammonia or primary amine to obtain a mixture of monomer compounds; reaction of the mixture of monomer compounds with at least one of acrylic acid, vinyl alcohol, vinyl acetate, acrylamide, methylacrylic acid, and methylacrylamide to obtain an intermediate polymer; and reaction of the intermediate polymer with a dithiocarbamic acid salt. Methods for using the polymer are also described herein.

Abstract: A water treatment system comprises an electrolytic cell comprising: a first electrode; a second electrode comprising a coating of polymer comprising structural units of formula I and a power source for powering the first and the second electrodes; wherein R1 is independently at each occurrence a C1-C6 alkyl radical or —SO3H; R2 is independently at each occurrence a C1-C6 alkyl radical; a is independently at each occurrence an integer ranging from 0 to 4; and b is independently at each occurrence an integer ranging from 0 to 3. An associated method is also described.

Abstract: The invention relates to a polymer derived from: reaction of glycidyl (meth)acrylate, allyl glycidyl ether or [(vinyloxy)methyl]oxirane with ammonia or primary amine to obtain a mixture of monomer compounds; reaction of the mixture of monomer compounds with at least one of acrylic acid, vinyl alcohol, vinyl acetate, acrylamide, methylacrylic acid, and methylacrylamide to obtain an intermediate polymer; and reaction of the intermediate polymer with a dithiocarbamic acid salt. Methods for using the polymer are also described herein.