Commonwealth Scientific and Industrial Research Organisation

Paul Hubert Maria Feron

Graeme Douglas Puxty

Qi Yang

William Conway

Ashleigh Jane Cousins

Ramesh Thiruvenkatachari

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

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 absorption of a target gaseous component from a gas stream comprising the steps of: contacting the gas stream with an absorber comprising an liquid absorbent for absorbing the target gaseous component to produce a rich liquid absorbent stream and a non target gaseous component, said non target gaseous component including water vapour; treating the rich liquid absorbent stream in a desorber to thereby release the target gaseous component and a water vapour component into a desorber gas stream and produce a lean liquid absorbent stream; and forming a recovered water stream from the output of a water separator for separating the water vapour from the target gaseous component, said water separator forming part of the absorber and/or the desorber. The lean liquid absorbent stream exiting the desorber is treated with a forward osmosis (FO) membrane unit comprising a water permeable membrane, wherein the membrane unit transfers water from a salt water stream through the water permeable membrane to the lean liquid absorbent stream, thereby replenishing at least part of the water removed in the process.

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New South Wales, Australia

Paul Hubert Maria Feron