US 11,858,871 B2
Renewable methane production module
Rohan Gillespie, Melbourne (AU)
Assigned to SOUTHERN GREEN GAS LIMITED, Melbourne (AU)
Appl. No. 17/256,132
Filed by SOUTHERN GREEN GAS LIMITED, Melbourne (AU)
PCT Filed May 30, 2019, PCT No. PCT/AU2019/050546
§ 371(c)(1), (2) Date Dec. 24, 2020,
PCT Pub. No. WO2020/000020, PCT Pub. Date Jan. 2, 2020.
Claims priority of application No. 2018902332 (AU), filed on Jun. 28, 2018; and application No. 2018903181 (AU), filed on Aug. 29, 2018.
Prior Publication US 2021/0221753 A1, Jul. 22, 2021
Int. Cl. C07C 1/12 (2006.01); C25B 9/65 (2021.01); B01D 53/14 (2006.01); C25B 1/04 (2021.01)
CPC C07C 1/12 (2013.01) [B01D 53/1418 (2013.01); C25B 1/04 (2013.01); C25B 9/65 (2021.01); B01D 2253/204 (2013.01); B01D 2257/504 (2013.01); B01D 2257/80 (2013.01); B01D 2258/06 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A renewable methane production module comprising:
a water capture generator designed for directly capturing water from atmosphere to provide water in a liquid form, the water capture generator including an absorbent material designed to be exposed to atmosphere for directly absorbing water from the atmosphere onto the absorbent material;
an electrolyser operatively coupled to the water capture generator for receiving the liquid water, the electrolyser being effective in electrolysis of the liquid water to produce hydrogen;
a carbon dioxide extractor for extracting carbon dioxide from atmosphere, the carbon dioxide extractor being configured for directly capturing carbon dioxide from atmosphere using a metal-organic framework (MOF) capable of directly absorbing carbon dioxide from the atmosphere; and
an exothermic reactor operatively coupled to the electrolyser, said exothermic reactor (a) configured for reacting hydrogen from the electrolyser with carbon dioxide from the carbon dioxide extractor to produce renewable methane in a Sabatier reaction, and (b) operatively coupled to a heat exchanger designed to exchange heat derived from the production of renewable methane with the carbon dioxide extractor to heat the MOF of said extractor to release the absorbed carbon dioxide from the absorbent structure.