INORGANIC OXIDES FOR CO2 CAPTURE FROM EXHAUST SYSTEMS

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This invention relates to the utilization of regenerable water tolerant solid materials for the abatements of CO2 emissions from internal combustion engine exhaust streams through repetitive sorption/desorption cycles. The system, which is designed to be used in a gasoline, lean gasoline, diesel passenger car, diesel truck, stationary engine with 50Hz or 60Hz electrical frequency, or a SOFC, will contain a solid sorbent which contains zirconium and will be able to reduce on board the average carbon emissions by up to 10wt%. The preferred materials have been selected from the class of hydrotalcite type compounds and/or earth and alkaline earth zirconates.