Commonwealth Scientific and Industrial Research Organisation

Qi Yang

Graeme Douglas Puxty

William Conway

Paul Hubert Maria Feron

Paul Feron

Mark Bown

Robert Bennett

Mathew John Ballard

Moetaz Ibrahim Attalla

Susan N James

Andrew Wayne Allport

Robert Cameron Rowland

Michael Webster-Gardiner

Michael Webster-gardiner

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.

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

Victoria, Australia

Qi Yang