System and method for removing carbon dioxide from a flow of gas having carbon dioxide therein

A system for removing carbon dioxide from a flow of gas having carbon dioxide therein, the system comprising:

• a first venturi eductor configured to receive the flow of gas having carbon dioxide therein and a flow of a first alkaline solution at a first predetermined pH range, the first venturi eductor configured to introduce and mix the flow of gas having carbon dioxide therein into the flow of the first alkaline solution to induce a reaction of the carbon dioxide with the first alkaline solution to form a solution having metal bicarbonate therein;
• a first reactor coupled to the first venturi eductor, the first reactor including a volume of the first alkaline solution at the first predetermined pH and configured to provide sufficient reaction time to augment the reaction of the carbon dioxide with the first alkaline solution to increase the concentration of metal bicarbonate in the solution having metal bicarbonate therein and output a flow of partially treated gas having carbon dioxide therein;
• a second venturi eductor configured to receive the flow of the partially treated gas and a flow of a second alkaline solution at a second predetermined pH range, the second venturi eductor configured to introduce and mix the flow of the partially treated gas into the flow of the second alkaline solution to induce a reaction of a majority of the remaining carbon dioxide with the second alkaline solution to form a solution having metal carbonate therein;
• a second reactor coupled to the second venturi eductor, the second reactor including a volume of the second alkaline solution at the second predetermined pH range and configured to provide sufficient reaction time to augment the reaction of the majority of the remaining carbon dioxide with the second alkaline solution to increase the concentration of metal carbonate in the solution having metal carbonate therein;
• the second reactor configured to output a flow of the solution having metal carbonate therein into the flow of the first alkaline solution and/or the first reactor to maintain the pH of the first alkaline solution at the first predetermined pH range and output a flow of treated gas having a majority of the carbon dioxide removed;
• and
• a pH adjustment subsystem configured to introduce a flow of a concentrated alkaline solution into the flow of the second alkaline solution and/or the second reactor to maintain the pH of the second alkaline solution at the second predetermined pH.