PROCESS AND SYSTEM FOR REMOVING CARBON DIOXIDE FROM COMBUSTION GAS AND OTHER GAS MIXTURES

摘要

A method and system of separating carbon dioxide from flue gas is introduced.
Instead of relying on large temperature or pressure changes to remove carbon
dioxide from a solvent used to absorb it from flue gas, the ion pump method,
as disclosed herein, dramatically increases the concentration of dissolved
carbonate ion in solution. This increases the overlying vapor pressure of
carbon dioxide gas, permitting carbon dioxide to be removed from the
downstream side of the ion pump as a pure gas . The ion pumping may be
obtained from reverse osmosis, electrodialysis, thermal desalination methods,
or an ion pump system having an oscillating flow in synchronization with an
induced electric field.