CO2 separation from flue gas using zeolite and carbon molecular sieve by indirect heated and cooled TSA process

Saxanana, Pidari Fayani (2024) CO2 separation from flue gas using zeolite and carbon molecular sieve by indirect heated and cooled TSA process. S1 thesis, Universitas Andalas.

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Abstract

Since CO2 is consider as major facilitator of climatic change, carbon capture (CC) is a significant way for sustaining the use of fossil fuels while lowering the amount of CO₂ released into the atmosphere, thereby to achieve zero net carbon emission [1]. Due to high energy consumption and operational cost, carbon capture using adsorption method has been researched from various angle emphasize the sorption materials. Zeolite as famous adsorbent in carbon capture field, exhibits more selective to CO2, but present challenge deteriotion at wet condition, weak in acidic, and high cost. Furthermore, CMS is less expensive than zeolites, and high resistance into acidic and alkaline. This study investigated the CO2 separation and recovery by using mixing and layer adsorbent packed of CMS and Zeolite. TSA process with indirect heating and cooling was used, to shorting the operating time and low energy consumption. Both dry and wet condition reveal the result, that CO2 concentration and recovery ratio of CO2 of mixing adsorbent slightly higher than layer adsorbent, eventhough the total amount CO2 desorption of mixing and layer adsorbent is not much different. In addition, adding moisture on feed and purge gas at Td=5°C decrease the CO2 concentration and recovery ratio around 2% than dry condition, it’s because adsorbent haven’t reached yet the saturation of moisture adsorption before starting the cycle time experiment

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