Dynamic modeling and semibatch reactive crystallization of calcium carbonate through CO2capture in highly alkaline water

•A carbon capture strategy is integrated with crystallization process of CaCO3.•Energy for CO2decomposition is avoided by production of value-added chemical.•Using aqueous solutions of sodium hydroxide for carbon capture and valorization.•Demonstration of calcium carbonate crystallization as a by-product of CO2capture.•Population balance modeling for evaluating calcium carbonate growth rate constant.