Commonwealth Scientific and Industrial Research Organisation

Graeme Douglas Puxty

Qi Yang

William Conway

Paul Feron

Paul Hubert Maria Feron

Robert Bennett

Mark Bown

Mathew John Ballard

Moetaz Ibrahim Attalla

Erik Everhardus Bernardus Meuleman

Susan N James

Andrew Wayne Allport

Robert Cameron Rowland

Michael Webster-Gardiner

Michael Webster-gardiner

Erik Everhardus Meuleman

A process for absorbing carbon dioxide from a gas stream containing carbon dioxide, including the steps of contacting the gas stream with an aqueous composition including a substituted heteroaromatic compound having a six-membered heteroaromatic ring with from 1 to 3 nitrogen atoms in the heteroaromatic ring and at least one substituent wherein at least one of the substituents is of formula —RNHwherein Ris selected from Cto Calkylene and ethers of formula —R—O—R— wherein Rand Rare Cto Calkylene.

Process and system for capture of carbon dioxide

The invention provides a process for regenerating a liquid absorbent, comprising: contacting the liquid absorbent with a hydrophobic medium, wherein the liquid absorbent comprises at least one amine of Formula (I) and degradation product thereof comprising at least one imine of Formula (II), wherein each Ar is independently an aromatic group and each R is independently selected from hydrogen, an organyl group and NH; and selectively extracting the degradation product into or through the hydrophobic medium.

Process for regenerating a liquid absorbent

The invention provides a process for regenerating a liquid absorbent, including: contacting the liquid absorbent with a hydrophobic medium, wherein the liquid absorbent includes at least one amine of Formula (I) and degradation product thereof including at least one imine of Formula (II), wherein each Ar is independently an aromatic group and each R is independently selected from hydrogen, an organyl group and NH2; and selectively extracting the degradation product into or through the hydrophobic medium.

A process for absorbing carbon dioxide from a gas stream containing carbon dioxide, including the steps of contacting the gas stream with an aqueous composition including a substituted heteroaromatic compound having a six-membered heteroaromatic ring with from 1 to 3 nitrogen atoms in the heteroaromatic ring and at least one substituent wherein at least one of the substituents is of formula &#x2014;RNHwherein Ris selected from Cto Calkylene and ethers of formula &#x2014;R&#x2014;O&#x2014;R&#x2014; wherein Rand Rare Cto Calkylene.

A process for absorbing carbon dioxide from a gas stream containing carbon dioxide, including contacting the gas stream with an aqueous composition having a substituted heteroaromatic compound including a six-membered heteroaromatic ring comprising from 1 to 3 nitrogen atoms in the heteroaromatic ring and at least one substituent wherein at least one of the substituents is of formula &#x2014;RNHwherein Ris selected from Cto Calkylene and ethers of formula &#x2014;R&#x2014;O&#x2014;R&#x2014; wherein Rand Rare Cto Calkylene.

The invention relates to a process for removing a target gas from a gas stream rich in the target gas and to an absorbent solution for absorbing a gas, such as carbon dioxide, from a gas stream. The invention involves the use of a photoactive compound that is convertible from a first state to a second state upon irradiation to facilitate removal or collection of a target gas from a gas stream.

Reversible light driven gas absorbent solution and process

An absorption columnfor separating COand a second acid gas from a gas stream, the column comprising a first and second section () for the absorption of COand the second acid gas; a solvent inlet in the second section for the addition of liquid streamincluding an absorbent liquid for COand the second acid gas; a gas inlet () in the first section for the addition of a gas stream () containing COand the second acid gas; a gas outlet () in the second section of the column; a first solvent outlet () for the removal of at least a portion of the solvent () from the second section of the column and a second solvent outlet () for solvent stream () from the first section of the column; and a liquid flow distributor arrangement () to allow a portion of the solvent to flow from the second section of the column to the first section. A method of operating the apparatus and method of solvent extraction is also disclosed.

Process for capturing acid gases

A process for the capture of COfrom gas streams, the process including contacting a COcontaining gas stream with a compound including: a primary or non-sterically hindered secondary amine group and at least one tertiary amine or sterically hindered secondary amine group; wherein the primary or non-sterically hindered secondary amine and the nearest tertiary or sterically hindered secondary amine group are separated by a carbon chain including 3 or 4 carbon atoms and wherein the compound is a compound of Formula (I).

Gas capture process

A process for the capture of COfrom gas streams comprising contacting a COcontaining gas stream with an aqueous alkanolamine solution, wherein the alkanolamine is selected from the group consisting of: 3-piperidinemethanol, Tricine, 3-quinuclidinol, 3-piperidino-1,2-propanediol and their salts.

Growing community of inventors

New South Wales, Australia

Graeme Douglas Puxty