CO2 adsorption recycler

• US 10,835,855 B2
• Filed: 03/07/2014
• Issued: 11/17/2020
• Est. Priority Date: 03/13/2013
• Status: Active Grant

• Current Assignee: LetsACT Co.
• Original Assignee: LetsACT Co.
• Inventors: Castellanet, Frederic
• Primary Examiner(s): Nguyen, Nyca T
• Application Number:
  US14/774,867
• Publication Number:
  US 20160023156A1
• Time in Patent Office: 2,447 Days
• CPC Class Codes: B01D 2256/12 Oxygen
• CPC Class Codes: B01D 2257/504 Carbon dioxide
• CPC Class Codes: B01D 2259/402 using two beds
• CPC Class Codes: B01D 2259/4541 for portable use, e.g. gas masks
• CPC Class Codes: B01D 53/0438 Cooling or heating systems
• CPC Class Codes: B01D 53/0462 Temperature swing adsorption
• CPC Class Codes: B63C 11/24 in closed circulation
• CPC Class Codes: Y02C 20/40 of CO2

Abstract

A system for extracting carbon dioxide from a mixture of gases that include at least carbon dioxide, wherein a reservoir is provided that contains a material capable of adsorbing the carbon dioxide, the reservoir having an inlet for the mixture and an outlet for a mixture that is at least partially purified of carbon dioxide, where the system also includes at least one element for heating the reservoir, at least one electronic control circuit that causes a heating of the reservoir when at least one condition is fulfilled, so as to give rise to the desorption of the carbon dioxide adsorbed on the material contained in the reservoir.

Claims

1. A system for a diver breathing apparatus for extraction of carbon dioxide from a gas mix that has at least carbon dioxide, the system comprising:

a reservoir, which comprises a material configured to adsorb carbon dioxide within said reservoir, at least one means for heating said reservoir, an inlet for said gas mix, and an outlet for an output mix of gases from which at least some of the carbon dioxide has been eliminated;

an end piece, in fluid communication with said reservoir via an intake pipe, configured for a user to breathe gas therethrough; and

an electronic control circuit, connected to said at least one means for heating said reservoir and configured to heat said reservoir when at least one condition is satisfied, so as to cause desorption of the carbon dioxide adsorbed on the material contained in said reservoir,

wherein the reservoir and the electronic circuit are embedded in a resin block.

2. The system for extraction of carbon dioxide according to claim 1, wherein said reservoir further comprises a mix inlet valve, a purified mix outlet valve and a carbon dioxide outlet valve, and said electronic control circuit is configured to close said mix inlet valve and said purified mix outlet valve and to open the carbon dioxide outlet valve when said electronic control circuit causes heating of said reservoir.

3. The system for extraction of carbon dioxide according to claim 2, further comprising

at least one means of measuring at least one parameter characterising the environment in which said system is located, and said condition applies to at least one environmental parameter.

4. The system for extraction of carbon dioxide according to claim 1, further comprising:

at least one means of measuring at least one parameter characterising the environment in which said system is located, and said condition applies to at least one environmental parameter.

5. The system for extraction of carbon dioxide according to claim 4, wherein the at least one means of measuring includes a pressure sensor and/or a water presence sensor, and said condition applies to a pressure and/or a presence of water.

6. A closed circuit breathing system for a diver, comprising:

a end piece, fitted with an inhalation pipe and an exhalation pipe, configured for a user to breathe gas therethrough;

a breathing bag connected to said inhalation pipe;

a cylinder containing compressed oxygen for introduction of oxygen into said breathing bag; and

an extraction system for extraction of carbon dioxide from a gas mix comprising at least carbon dioxide, comprising;

a reservoir, which a material configured to adsorb carbon dioxide within the reservoir, at least one means for heating said reservoir, an inlet for said gas mix, and an outlet for an output mix of gases from which at least some of the carbon dioxide has been eliminated, and

at least one electronic control circuit connected to said at least one means for heating said reservoir and configured to heat said reservoir when at least one condition is satisfied, so as to cause desorption of the carbon dioxide adsorbed on the material contained in said reservoir,

wherein the inlet of the reservoir is connected to said exhalation pipe and the outlet of the reservoir is connected to said breathing bag, and

wherein the extraction system is embedded in a resin block.

7. The closed circuit breathing system for a diver according to claim 6, wherein the extraction system further comprises at least one means of measuring at least one parameter characterising the environment in which said system is located, and said condition applies to at least one environmental parameter.

8. The closed circuit breathing system for a diver according to claim 7, wherein the at least one means of measuring includes a pressure sensor and/or a water presence sensor, and said condition applies to a pressure and/or a presence of water.

9. The closed circuit breathing system for a diver according to claim 6, wherein said reservoir further comprises a mix inlet valve, a purified mix outlet valve and a carbon dioxide outlet valve, and said electronic control circuit is configured to close said mix inlet valve and said purified mix outlet valve and to open the carbon dioxide outlet valve when said electronic control circuit causes heating of said reservoir.