Design and Performance Assessment of Zeolite 13X Based Adsorber Bed for Carbon Capture under Atmospheric Conditions

Abstract

Anthropogenic CO2 emissions to the atmosphere are one of the most concerning climate issues in the modern era. This triggers the researchers to look forward to carbon capture technologies. They are many technologies available for carbon capture such as distillation process, cryogenic treatment, ad/absorption process, biosynthesis etc. Among these, for high quantity of carbon capture, low operating and maintenance costs, faster CO2 capture rate and industry-oriented applications, adsorption-based carbon capture technology was found to be prominent. Thus, in the present investigation, the design and performance assessment of Zeolite 13X based adsorber bed for carbon capture is analyzed analytically under atmospheric conditions. Here, a finite difference-based analytical model is developed for design and performance analyses of adsorber bed. The developed model is validated with the experimental data available in the literature and found to match well with a maximum probable error of ±15%. Further, this analytical model has also been validated against the temperature swing adsorption (TSA) models for signifying the accuracy of the proposed model. The design and performance parameters chosen for the present study are adsorber bed length, temperature, CO2 concentration variation with respect to time, CO2 adsorption effectiveness, purity and recovery of CO2 with adsorption time. Employing the above-mentioned parameters, Zeolite 13X based adsorber bed design and performance analyses are evaluated. From the present study, it is observed that 28.46 % decrement in concentration ratio as temperature increase from 393.13 K to 303.15 K and 15% more CO2 can be adsorbed by increasing the length of the bed from 2.4 m to 0.8 m.