Dow Global Technolgoies LLC

The Dow Chemical Company

Mg Generon

Ddp Specialty Electronic Materials Us, LLC

H Robert Goltz

Scott T Matteucci

Ajay N Badhwar

Nicholas J Shurgott

Jonathan W Leister

Matthew Lawrence Rodgers

Reid Henry Bowman

Brandon J Kern

David H West

Kaoru Aou

Arjun Raghuraman

Chan Han

Juan Carlos Medina

William I Harris

Thomas Caldwell Young

Daryl John Gisch

Junqiang Liu

Philip J Carlberg

Yasmin N Srivastava

William G Worley

Fabio Aguirre Vargas

Richard T Stringfield

Avery L Watkins

Sachit Goyal

Leming Gu

Seth I Norman

Robert L LaBrie

Upen J Bharwada

Tom N Demopolis

Ann F Johnson

David A Reuschle

A coated proppant includes a solid core proppant particle and a heavy metal recovery coating, including heavy metal recovery crystals embedded within a polymer resin matrix. A process for the manufacture of a coated proppant includes providing a solid core proppant particle, and forming on the solid core proppant particle, a heavy metal recovery coating including heavy metal recovery crystals embedded within a polymer resin matrix.

Proppant coating for heavy metal recovery

A method for separating Nfrom a hydrocarbon gas mixture containing Ncomprising the steps of: i) providing a bed of adsorbent selective for N; (ii) passing the hydrocarbon gas mixture through the bed of adsorbent to at least partially remove Nfrom the gas mixture to produce: (a) N-loaded adsorbent and (b) N-depleted hydrocarbon gas mixture; iii) recovering the N-depleted hydrocarbon gas mixture; iv) regenerating the N-loaded adsorbent by at least partially removing Nfrom the adsorbent; and v) sequentially repeating steps (ii) and (iii) using regenerated adsorbent from step (iv); wherein the adsorbent comprises a pyrolized sulfonated macroporous ion exchange resin.

Separation of nitrogen from hydrocarbon gas using pyrolyzed sulfonated macroporous ion exchange resin

A process for purification of a carbon dioxide feedstock that includes carbon dioxide and gaseous and liquid C+ hydrocarbons. Specifically, a carbon dioxide feedstream is passed through one or more separation unit, each separation unit removing one or more C+ hydrocarbon from the carbon dioxide feedstream to provide a richer carbon dioxide gas stream. The one or more separation unit employs an adsorption media and has an adsorption step and a media regeneration step.

Process for carbon dioxide recovery from a gas stream containing carbon dioxide and hydrocarbons

Disclosed is a method for running natural gas powered stationary combustion systems, such as an internal combustion engine, a furnace, a fired heater, a power plant, an incinerator, and the like. In one embodiment of the present method, ethane and heavier hydrocarbons or propane and heavier hydrocarbons () are removed () from a natural gas feedstream () to provide the methane-rich natural gas stream () used to fuel the stationary combustion system (). One embodiment of this method provides for the use of a regenerable adsorbent media to remove the higher hydrocarbons which is regenerated by a microwave heating system. Said regeneration step may be operated as a batch process, a semi-continuous process, or a continuous process.

Methane-rich natural gas supply for stationary combustion systems

A method is disclosed for the separation of ethane and heavier hydrocarbons or propane and heavier hydrocarbons from natural gas to provide a methane-rich natural gas stream and less volatile natural gas liquids (NGLs). This method provides for passing a natural gas feedstream though a regenerable adsorbent media which adsorbs the NGLs to provides the methane rich natural gas product. The regenerable adsorbent media of the present invention is a cross-linked macroporous polymeric adsorbent media.

Method for extracting natural gas liquids from natural gas using an adsorbent media comprising a cross-linked macroporous polymer

Disclosed is a method of sequentially separating and recovering one or more NGLs () from a natural gas feedstream (). Specifically, a raw natural gas feedstream () is passed through two or more NGLs separation unit () wherein each separation unit removes one or more NGLs from the natural gas feedstream to provide a methane-rich natural gas supply (). Each separation unit employs an adsorption media and has an adsorption step and a media regeneration step wherein the regeneration step may be operated as a batch process, a semi-continuous process, or a continuous process. One embodiment of this method provides for the use of a different regenerable adsorbent media in each separation unit.

Sequential removal of NGLs from a natural gas stream

A method is disclosed for the separation of ethane and heavier hydrocarbons or propane and heavier hydrocarbons from natural gas to provide a methane-rich natural gas stream and less volatile natural gas liquids (NGLs). This method provides for the use of a regenerable adsorbent media comprising a porous cross-linked polymeric adsorbent, a pyrolized macroporous polymer, or mixtures thereof, which is regenerated by a pressure swing adsorption (PSA) process, temperature swing adsorption (TSA) process, or combination of the two. Said regeneration step may be operated as a batch process, a semi-continuous process, or preferably as a continuous process.

Method for regenerating adsorbent media used for extracting natural gas liquids from natural gas

A method for separating natural gas liquids (NGLs) from a hydrocarbon gas mixture containing natural gas liquids and methane, comprising the steps of: i) providing a bed of adsorbent selective for NGLs over methane; ii) passing a hydrocarbon gas mixture containing methane and NGL through the bed of adsorbent to at least partially remove NGLs from the gas mixture to produce: (a) NGL-loaded adsorbent and (b) NGL-depleted hydrocarbon gas mixture; iii) recovering the NGL-depleted hydrocarbon gas mixture; iv) regenerating the NGL-loaded adsorbent by at least partially removing NGLs from the adsorbent; and v) sequentially repeating steps (ii) and (iii) using regenerated adsorbent from step (iv).

Separation of hydrocarbons using regenerable macroporous alkylene-bridged adsorbent

The present invention relates to a method of separating and recovering NGLs from a natural gas feedstream. Specifically, the present method allows for the separation of ethane and heavier hydrocarbons and/or propane and heavier hydrocarbons from a raw natural gas feedstream to provide pipeline quality natural gas. One embodiment of this method provides for the use of a regenerable adsorbent media which is regenerated by a microwave heating system. Said regeneration step may be operated as a batch process, a semi-continuous process, or a continuous process.

Method to provide pipeline quality natural gas

Use a modified, amine-functionalized anion exchange resin as a catalyst to produce a bishalohydrin ether and then dehydrohalogenate the bishalohydrin ether with an aqueous inorganic hydroxide mixture to yield a liquid epoxy resin.

Production of epoxy resins using improved ion exchange resin catalysts

A macroporous polymeric adsorbent is used to remove oil mist and oil vapors from compressed air produced by an oil-lubricated air compressor prior to feeding the compressed air to an air separation membrane system. The macroporous polymeric adsorbent, previously known only for its ability to extract low molecular weight volatile organic compounds from liquids and gases, retains its ability to extract the oil for extended periods of time and outperforms the commonly used activated carbon of the prior art.

Removal of oil from compressed gas with macroporous polymeric adsorbent

Hydrocarbon emissions from fuel reservoirs, particularly those associated with motor vehicles, are abated by contacting a vented hydrocarbon fuel vapor stream from the reservoirs with a polymeric adsorbent derived from a macroporous or macroreticular copolymer of at least one monovinylidene aromatic monomer and a crosslinking monomer. The macroporous copolymers are converted into suitable adsorbents by post-polymerization crosslinking in a swollen state in the presence of a Friedel-Crafts catalyst. The resulting adsorbent has improved hydrocarbon adsorption capacity relative to conventional activated carbon adsorbents.

Method to reduce fuel vapor emissions

A process for decolorizing an aqueous sugar solution by contacting the solution with an absorbent resin, wherein the adsorbent resin is a macroporous copolymer being post-crosslinked in a swollen state in the presence of a Friedel-Crafts catalyst and functionalized with hydrophilic groups prior to contact with the aqueous sugar solution.

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Midland, MI, United States of America

H Robert Goltz