摘要:
Provided are oil-in-water and water-in-oil emulsion compositions including from 0.01 to 5 wt % of a halogenated elastomer emulsifier, and optionally from to 0.5 wt % of a polyalkylene amine co-emulsifier. The emulsion compositions disclosed herein provide for increased interfacial elasticity and decreased interfacial tension at the oil-water interface to increase resistance to coalescence of dispersed water droplets of a water-in-oil emulsion or oil droplets of an oil-in-water emulsion. The emulsion compositions disclosed herein are suitable for lubricant applications due to their resistance to shear thinning.
摘要:
The invention is a method for forming a solid carbonaceous material into a pumpable fluid by combining the solid with an aqueous treatment solution and then subjecting the mixture to shearing forces. The solid carbonaceous material can be deasphalter unit rock (“DAU rock”), coke, and mixtures of DAU rock and coke. Aqueous treatment solutions contain a water soluble polymer.
摘要:
A method and composition for enhancing the biodegradation of hydrocarbon contaminated soil, water, and/or sludge are disclosed. The composition comprises an adduct of urea with a non-ionic surfactant and a phosphorous source. The disclosed method provides for the application of a degradation effective amount of a composition which comprises a N:P ratio which ranges from 10:2 to about 10:0.5 and the urea and non-ionic surfactant are present in the adduct in a weight ratio ranging from 98:2 to 75:25. Further, the method of biodegradation is carried out by the application of the composition to provide for a C:N:P ratio of 100:10:1 to 100:1:001. The C:N:P ratio is based on the weight percent of the hydrocarbon contaminate in the soil, water and/or sludge sites to be treated. Surfactants which are useful in the disclosed composition and method have from about 2 to fifty ethylene oxide groups; and comprise such compounds as alkylethoxylates, alkyl ethoxylated phosphates, alkyl ethoxylated amines, alkylethoxylated ammonium salts, etc.
摘要:
A method for reducing the viscosity and surface wetting tendency of an oil containing hydrophilic aspaltenes comprises adding to said oil an amount of hydrophobic asphaltenes in the range of 1 to 80 wt % based on weight of the hydrophilic asphaltense of said oil.
摘要:
The invention is a method for forming a solid carbonaceous material into a pumpable fluid by combining the solid with an aqueous treatment solution and then subjecting the mixture to shearing forces. The solid carbonaceous material can be deasphalter unit rock (“DAU rock”), coke, and mixtures of DAU rock and coke. Aqueous treatment solutions contain a water soluble polymer.
摘要:
Provided are oil-in-water and water-in-oil emulsion compositions including from 0.01 to 5 wt % of a halogenated elastomer emulsifier, and optionally from to 0.5 wt % of a polyalkylene amine co-emulsifier. The emulsion compositions disclosed herein provide for increased interfacial elasticity and decreased interfacial tension at the oil-water interface to increase resistance to coalescence of dispersed water droplets of a water-in-oil emulsion or oil droplets of an oil-in-water emulsion. The emulsion compositions disclosed herein are suitable for lubricant applications due to their resistance to shear thinning.
摘要:
A method for reducing the viscosity and toluene equivalence of an oil containing asphaltenes comprises the steps of: a) mixing with the oil, a polar solvent, and an asphaltene dispersant additive wherein the weight ratio of oil:polar solvent is in the range of 10:0.1 to 10:5, the asphaltene dispersant additive is at a treat rate in the range of 0.025 to 5 weight percent based on the weight of the oil, and then, b) removing at least 90 wt % of the polar solvent from the mixture of oil, polar solvent and the asphaltene dispersant additive to provide upgraded oil with reduced viscosity and toluene equivalence.
摘要:
The invention is directed towards a chemical demulsifier formulation comprising an alkyl aromatic sulfonic acid additive with at least 16 carbon atom alkyl group and at least two 6 carbon-ring aromatic group and a co-additive selected from the group consisting of dipropylene monobutyl ether, aromatic naphtha, isoparaffinic solvent, cycloparaffinic solvent, aromatic solvent, diethylene glycol monobutyl ether, benzyl alcohol and mixtures thereof and a process for demulsification and desalting crude oil using the demulsifier formulation.
摘要:
In one embodiment, the invention is related to a process for desalting crude oil that requires less wash water than conventional desalting methods. In the preferred embodiment of the invention, a chemical demulsifier formulation comprising an emulsion-breaking chemical and a solvent carrier is added to the crude oil. Wash water is then added to the crude oil until the volume of water in the oil ranges from about 0.1 to about 3 vol. %. Subsequently, the mixture of crude oil, wash water, and chemical demulsifier formulation is subjected to opposed-flow mixing. Chemical emulsion-breakers useful in the invention have a hydrophobic tail group and a hydrophilic head group. Preferably, the emulsion breaker has the formula: x ranges from 1 to 5, y ranges from 0 to 2, and R is an alkyl group having 4-9 carbon atoms, and n ranges from 3 to 9.
摘要:
The present invention provides a composition for dispersing oil slicks comprising a twin tail surfactant or mixture of twin tail surfactants having the general formula: ##STR1## wherein R.sub.1 and R.sub.3 may be the same or different alkyl or alkenyl groups; R.sub.2 is H or OH; and x is from 1 to about 20.