In order to meet Navys need, ChromoLogic LLC (CL) proposes to develop a Membrane Contactor based CO2 Absorbing Module (MC-CAM) to timely remove CO2 maintain CO2 concentration of CCR in a safe range (
Benefit: Military applications of MC-CAM will include: CO2 removal in underwater environments and on-site generation of fuel by capturing CO2 from seawater. Besides SCUBA, the MC-CAM can be incorporated into submarine, where CO2 are accumulated, and may cause safety and life support issues. U.S. Navy is currently developing a technology to extract CO2 and H2 from seawater and turn them into a liquid hydrocarbon fuel to power jet engines. Connecting to a low pressure CO2-free gas flow or vacuum, MC-CAM system can be modified to collect CO2 for fuel generation. Integrated to the current diving system, MC-CAM system will have broad application in civilian under water operations, including leisure diving, cleaning ship surfaces from fouling, constructing the underwater structures, rescue, education and training, underwater journalism and cinematography, and scientific researches. The scaled up MC-CAM can be directly used to remove CO2 from flue gas or post-combustion gas with seawater plus limestone. The absorbed CO2 will be converted to soluble calcium bicarbonate and sending calcium bicarbonate back to ocean will increase seawater alkalinity, which protects coral reefs, calcareous plankton, and other sea life from acidic seawater.
Keywords: Membrane, Membrane, Catalyst, Diving, Absorption, carbon dioxide, rebreather, Nanocomposite
