Simulation of CO₂ adsorption-separation from an N₂/CO₂ gas mixture in a fixed Mg-MOF-74 column
by Rached Ben-Mansour; Olufemi Eyitope Bamidele; Mohamed A. Habib; Abdul Malik P. Peedikakkal
International Journal of Global Warming (IJGW), Vol. 11, No. 2, 2017

Abstract: A computational study of adsorption-separation of CO₂ from an N₂/CO₂ gas mixture is presented in this paper. A detailed one-dimensional, transient mathematical model has been formulated to include the heat and mass transfer, the pressure drop and multi-component mass diffusion. The model has been implemented on a MATLAB program using second order discretisation. Validation of the model was performed using a complete experimental data set for carbon dioxide separation using activated carbon. Simulation of the adsorption breakthrough experiment on fixed bed has been carried out to evaluate the capacity of Mg-MOF-74 for CO₂ capture with varying feed gas temperature of 301 K, 323 K, 373 K and 423 K. The results show the superiority of MOF adsorbent in comparison to activated carbon. The simulated breakthrough time for CO₂ on Mg-MOF-74 with feed temperature and pressure of 301 K and 1.02 bar respectively is about 500 min as compared to 50 min for activated carbon. The amount of CO₂ adsorbed on Mg-MOF-74 under this condition is 6.43 mole per kilogram of adsorbent. The maximum temperature exhibited in the system is at the bed exit with a value of about 356 K after about 500 min of simulation.

Online publication date: Sun, 12-Feb-2017

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Global Warming (IJGW):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com