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Carbon Dioxide Capture Via Liquid Nitrogen in Compression Ignition Engine
The current study presents a new process for post combustion carbon dioxide (CO2) capture in diesel engine. Cryogenic technique is used to achieve CO2 separation from engine exhaust gas. The proposed process converted the CO2 in the form of dry ice using a cooled liquid absorbent (liquid nitrogen) at low pressure (close to atmospheric) and cryogenic temperature. The liquid nitrogen has a temperature of -196°C provided the cooling power to freeze out the CO2 in the form of dry ice. Experiments are performed in single cylinder four stroke diesel engine with an eddy current dynamometer and AVL444 Di-Gas analyser. The engine exhaust gas is allowed to pass over liquid nitrogen CO2 capture system. The result shows that liquid nitrogen is able to convert 90% of CO2 in the form of dry ice at full load condition.
Keywords
Diesel Engine, Emission, CO2 Capture, Liquid Nitrogen.
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