Abstract
This work was aimed at removing CO2 from a fire power plant by using the thermal swing adsorption (TSA) process. It is well known that CO2 adsorption uptake is blocked by the coexistence of steam in the TSA process. In this paper, the influence of desorption temperature and relative humidity in the desorption process on the CO2 capture performance during the TSA process is kinetically investigated. Under conditions without water, the adsorption decreases by half; when the relative humidity is 1.1% at 393 K, adsorption decreases to 2.5 mg-CO2/ghoneycomb. The recovery ratio of the CO2 adsorption performance depends on the relative humidity, not the desorption temperature. Therefore, in the TSA process, it is expected that the influence of steam can be disregarded if a better steam desorption adsorbent is used. This has the added benefit of eliminating the need to remove steam during preprocessing.
Published Version
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