System and method for passive collection of atmospheric carbon dioxide

A method for passively collecting atmospheric carbon dioxide, comprising:

• exposing a capture body to an airflow by moving the capture body into a collection configuration wherein at least a portion of the capture body is outside a harvest chamber, the capture body comprising a sorbent material that captures carbon dioxide, with the sorbent material hanging from at least one collapsible tether;
• moving the capture body into a release configuration by moving the capture body into the harvest chamber, with the portion of the capture body holding captured carbon dioxide entering the harvest chamber through a first opening of the harvest chamber;
• regenerating the sorbent material and releasing the captured carbon dioxide into the harvest chamber to form an enriched gas by exposing the sorbent material to a release medium introduced to the harvest chamber by a sorbent regeneration system;
• and
• removing a product stream of enriched gas from the harvest chamber through a product outlet.

A system for passive collection of atmospheric carbon dioxide, comprising:

• a harvest chamber comprising a first opening and a sorbent regeneration system;
• a capture body coupled to the harvest chamber and comprising a plurality of plates, each plate comprising a sorbent material, the capture body movable between a collection configuration wherein at least a portion of the capture body is outside the harvest chamber and in contact with an airflow such that atmospheric carbon dioxide is captured by the sorbent material, and a release configuration wherein the plurality of plates are enclosed within the harvest chamber and the capture body is operated upon by the sorbent regeneration system inside the harvest chamber such that captured carbon dioxide is released into the harvest chamber to form an enriched gas;
• and
• a product outlet in fluid communication with the inside of the harvest chamber and configured to receive a product stream of enriched gas.