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US 2021/0079338 A1Published application
Upgrading and enrichment of gases through algae photobioreactors
AssigneeExxonMobil Technology and Engineering Company
InventorsVinit Choudhary, Everett J. O'Neal, Sarah E. Feicht, Patrick L. Hanks, Samantha J. Reuter, Rachel G. Munson
Life of this patent
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Abstract
A method includes containing an algae media within a contactor, introducing a stream of natural gas comprising up to 80 wt % carbon dioxide (CO2) into the contactor, contacting the natural gas on the algae media and thereby allowing the algae media to consume CO2 from the natural gas, and discharging a stream of natural gas comprising 2 wt % or less CO2 from the contactor.
Claims20
A method, comprising:
- containing an algae media within a contactor;
- introducing a stream of natural gas comprising up to 80 wt % carbon dioxide (CO2) into the contactor;
- contacting the natural gas on the algae media and thereby allowing the algae media to consume CO2 from the natural gas;
- and
- discharging a stream of natural gas comprising 2 wt % or less CO2 from the contactor.
2 more elements
A method, comprising:
- introducing a stream of natural gas into an algae photobioreactor (PBR) containing an algae media;
- generating oxygen (O2) with the algae media;
- stripping at least a portion of the O2 with the natural gas within the PBR;
- discharging a stream of natural gas enriched with O2 from the PBR;
- and
- using the stream of natural gas enriched with O2 in an oxygen-requiring process.
3 more elements
A method, comprising:
- introducing a stream of a high-carbon dioxide (CO2) concentration gas into a contactor containing an algae media, the high-CO2 concentration gas comprising at one of natural gas having up to 80 wt % CO2 and a biogas having about 20-40 wt % CO2;
- contacting the high-CO2 concentration gas on the algae media and thereby allowing the algae media to consume CO2 from the high-CO2 concentration gas;
- and
- discharging a stream of gas comprising 2 wt % or less CO2 from the contactor.
1 more element
Dependencies are inferred from the claim text.