Abstract: A composition of co-polymers, surfactants and solvents is provided for use in methods of reducing paraffin and wax deposition from crude oils in storage and transportation vessels.

Abstract: A composition of co-polymers, surfactants and solvents is provided for use in methods of reducing paraffin and wax deposition from crude oils in storage and transportation vessels.

Abstract: 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.

Abstract: 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.

Abstract: The invention provides a method of removing sulfides from viscous petroleum streams such as asphalt, crude oil, and oil slurry using zinc octoate in which the molar ratio of zinc complexed with octanoic acid is not 1:2. Because zinc has a +2 charge and carboxylic acid has a ?1 charge, it was previously assumed that all zinc octoates must have a 1:2 ratio of zinc moieties to carboxylic acid. Zinc octoate formulations however, that contain a non 1:2 ratio, and those with 2.1:3 to 1.97:3 in particular, have in fact been shown to work better. In addition, these non 1:2 formulations have lower viscosity and therefore are easier to use than the previous formulations including a 1:2 ratio.

Abstract: The invention provides a method of removing hydrogen sulfide from hydrocarbon fluids. The method involves using an alpha-amino ether as a hydrogen sulfide scavenger. This allows for the introduction of an oil soluble scavenger in lieu of water-soluble scavengers.

Abstract: The invention provides a method of removing hydrogen sulfide from hydrocarbon fluids. The method involves using a nitroxide molecule to promote a sulfide scavenger such as alkyl-triazine. The nitroxide effectively accelerates the scavenger's activity. This allows for the avoidance of the introduction of halides into the hydrocarbon stream.

Abstract: The invention provides a method of removing mercaptans from hydrocarbon fluids. The method involves using an alpha-amino ether to scavenge the mercaptans. The scavenging reaction converts the mercaptans into a hydrocarbon soluble compound that mitigates the odor of the mercaptans.

Abstract: The invention provides a method of removing sulfides from viscous petroleum streams such as asphalt, crude oil, and oil slurry using zinc octoate in which the molar ratio of zinc complexed with octanoic acid is not 1:2. Because zinc has a +2 charge and carboxylic acid has a ?1 charge, it was previously assumed that all zinc octoates must have a 1:2 ratio of zinc moieties to carboxylic acid. Zinc octoate formulations however, that contain a non 1:2 ratio, and those with 2.1:3 to 1.97:3 in particular, have in fact been shown to work better. In addition, these non 1:2 formulations have lower viscosity and therefore are easier to use than the previous formulations including a 1:2 ratio.