Integrated system for capturing co2 and producing sodium bicarbonate (nahco3) from trona (na2co3 - 2h2o - nahco3)

Abstract

The present invention presents an integrated system for the production of Na2HCO3 from CO2 captured from industries or power plants by means of a dry carbonate process starting from trona as raw material (Na2CO3—NaHCO3-2H2O) and converting it into sodium carbonate (Na2CO3). The optimized integration of the unit allows coupling the system with renewable energies at medium temperatures below 220° C., such as biomass or medium temperature solar thermal energy systems. The use of this invention integrated in a CO2 emitting plant results in a global system of almost zero CO2 emissions, being able to meet the heat requirements of the global integrated system, minimizing the energy consumption of the CO2 capture system and conversion to bicarbonate. This optimized integration reduces the energy and economic penalty of integrating the CO2 capture system and conversion to value-added chemical.

Dependencies are inferred from the claim text.