Dow Global Technolgoies LLC

M J Yanjarappa

Michael K Poindexter

Stephen M Hoyles

Cecile Boyer

Peter N Nickias

Scott T Matteucci

Victor J Sussman

Phani Kiran Bollapragada

Deepak Akolekar

Embodiments of the present disclosure include a method of separating an oil-in-water emulsion formed during crude oil production into a water phase and an oil phase that includes adding 1 part-per-million (ppm) to 10000 ppm of a cationic vinyl imidazolium-based copolymer to the oil-in-water emulsion, based on the total volume of the oil-in-water emulsion, to form a water phase and an oil phase, and separating the water phase from the oil phase.

Cationic vinyl imidazolium-based copolymer for separating an oil-in-water emulsion

Embodiments of the present disclosure include a method of separating an oil-in-water emulsion formed during crude oil production into a water phase and an oil phase that includes adding 1 part-per-million (ppm) to 10000 ppm of an N-vinylpyrrolidone based cationic copolymer to the oil-in-water emulsion, based on the total volume of the oil-in-water emulsion, to form a water phase and an oil phase, and separating the water phase from the oil phase.

N-vinylpyrrolidone-based cationic copolymer for separating an oil-in-water emulsion

A composition comprising a mesoporous silica having grafted therewith an ionic liquid to form a mesoporous silica composition offers desirable levels of functionality, sorption, specific surface functionalization, and selectivity for polar gas/non-polar gas and olefin/paraffin separations. One particular embodiment employs silylated 3,3'-(2,2-bis(hydroxymethyl)propane-1,3-diyl)bis(1-methyl-1H-imidazol-3-ium)bis-((trifluoromethyl-sulfonyl)amide as the ionic liquid. The mesoporous silica composition may be configured as, for example, a membrane.

Ionic liquid grafted mesoporous silica compositions for polar gas/non-polar gas and olefin/paraffin separations

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Pune, India

M J Yanjarappa