Apparatus and method for sequestering flue gas CO2

A method of simultaneously capturing and mineralizing CO2 in flue gas with a fluidized bed reactor, the method comprising the steps of:

• providing the flue gas comprising the CO2 to an inlet of the fluidized bed reactor;
• distributing the flue gas in a substantially uniform distribution in the fluidized bed reactor;
• simultaneously capturing and mineralizing CO2 by reacting the flue gas with unprocessed power plant fly ash, wherein the simultaneously capturing and mineralizing is conducted at a rate of about 0.05 [grams of CO2/(min. * kg of flyash)] or greater;
• filtering the reacted flue gas and the fly ash to separate the reacted flue gas and return the fly ash for additional contact with the flue gas;
• and
• stabilizing the mineralized CO2.

A method of simultaneously capturing and mineralizing CO2 in flue gas with a fluidized bed reactor, the method comprising the steps of:

• providing the flue gas from a coal fired plant comprising the CO2 to an inlet of the fluidized bed reactor;
• distributing the flue gas in a substantially uniform distribution in the fluidized bed reactor;
• simultaneously capturing and mineralizing CO2 by reacting flue gas with the unprocessed power plant fly ash to capture carbon dioxide at a rate of about 0.05 [grams of CO2/ (min. * kg of flyash)] or greater;
• filtering the reacted flue gas and the fly ash;
• and
• stabilizing the reacted fly ash comprising mineralized CO2.