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Rotary contactor for vehicle carbon dioxide capture

  • US 10,563,555 B2
  • Filed: 10/19/2017
  • Issued: 02/18/2020
  • Est. Priority Date: 10/19/2017
  • Status: Active Grant
First Claim
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1. A method for capturing carbon dioxide (CO2) in exhaust gas of a vehicle, the method including:

  • locating a rotary contactor onboard the vehicle;

    delivering a stream of the exhaust gas of the vehicle to a cooled section of a rotary contactor, the rotary contactor including openings that extend from a first side of the rotary contactor to a second side of the rotary contactor opposite the first side;

    adsorbing the CO2 of the exhaust gas with a sorbent of the cooled section of the rotary contactor, where non-CO2 components of the exhaust gas pass through the openings;

    heating the cooled section of the rotary contactor with a hot fluid of the vehicle to release the adsorbed CO2 as a released CO2 stream and converting the cooled section of the rotary contactor to a heated section of the rotary contactor;

    directing a mixture of the released CO2 stream and the exhaust gas towards the stream of the exhaust gas with a purge sector; and

    cooling the heated section of the rotary contactor to convert the heated section of the rotary contactor back to the cooled section of the rotary contactor.

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