Hydrocyclone contactor for carbon dioxide removal

A module for removing CO2 from gas, the module comprising:

• a hydrocyclone having a cyclonic cone section constructed from a gas-permeable and liquid-impermeable membrane;
• an inlet to the cyclonic cone section;
• and
• an outlet at the apex of the cyclonic cone section.

A system for removing CO2 (5) from gas, the system comprising:

• one or more modules having a hydrocyclone having a cyclonic cone section constructed from a gas-permeable and liquid-impermeable membrane, an inlet to the cyclonic cone section, and
• an outlet at the apex of the cyclonic cone section;
• a CO2 separation unit;
• and
• a liquid absorber.

A method of removing CO2 from gas, the method comprising:

• providing a module for removing CO2 from gas, the module comprising:
• a hydrocyclone having a cyclonic cone section constructed from a gas-permeable and liquid-impermeable membrane, an inlet to the cyclonic cone section, and an outlet at the apex of the cyclonic cone section;
• flowing a liquid absorber in a continuous flow spiral on the inside of the membrane section of the module whilst simultaneously passing gas around the outside of the membrane section of the hydrocyclone to absorb CO2 from the gas outside of the membrane section of the hydrocyclone;
• flowing the liquid absorber out of the outlet into a CO2 separation unit to remove the CO2;
• and
• flowing the refreshed liquid absorber through the inlet and into the continuous flow spiral on the inside of the membrane section of the module.