Patent ID: 11858871
Assignee: SOUTHERN GREEN GAS LIMITED
Field: Chemical engineering (Chemistry)
Classification: CPC B  C  Y | IPC B  C

Claim 10:
11. A method of producing renewable methane comprising the steps of:
directly capturing water from air to provide water in a liquid form, said step of directly capturing water involving exposing air to an absorbent material to absorb water from the air onto the absorbent material;
producing hydrogen by electrolysis of the liquid water;
extracting carbon dioxide by directly capturing carbon dioxide from air using a metal-organic framework (MOF) capable of directly absorbing carbon dioxide from air; and
reacting the hydrogen with the directly captured carbon dioxide in an exothermic Sabatier reaction to produce renewable methane, the absorbed carbon dioxide being released from the MOF by heating it via heat derived from the exothermic reaction in production of renewable methane.