Adsorption Calculation of Oxygen, Nitrogen and Argon in Carbon-Based Adsorbent with Randomly Etched Graphite Pores 


Vol. 24,  No. 4, pp. 348-356, Dec.  2018
10.7464/ksct.2018.24.4.348


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  Abstract

The adsorption equilibria of oxygen, nitrogen and argon on carbonaceous adsorbent with slit-shaped and randomly etched graphite (REG) pores were calculated by molecular simulation method. Reliable models of adsorbents and adsorbates for adsorption equilibria are important for the correct design of industrial adsorptive separation processes. At the smallest physical pore of 5.6 A, only oxygen molecules were accommodated at the center of the slit-shaped pore, and from 5.9 A nitrogen and argon molecules could be accommodated in the pores. Slit pores showed higher adsorption capacity compared with REG pores with same averaged reenterance pore size due to dead volume and inaccessible volume in defected pores. And it was shown the adsorption capacities of oxygen and argon was same in larger pore size. From calculated adsorption isotherms at 298 K it showed that the adsorption capacity ratio of oxygen to nitrogen is increased as pressure is increased.

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  Cite this article

[IEEE Style]

S. YG, "Adsorption Calculation of Oxygen, Nitrogen and Argon in Carbon-Based Adsorbent with Randomly Etched Graphite Pores," Clean Technology, vol. 24, no. 4, pp. 348-356, 2018. DOI: 10.7464/ksct.2018.24.4.348.

[ACM Style]

Seo YG. 2018. Adsorption Calculation of Oxygen, Nitrogen and Argon in Carbon-Based Adsorbent with Randomly Etched Graphite Pores. Clean Technology, 24, 4, (2018), 348-356. DOI: 10.7464/ksct.2018.24.4.348.

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pISSN : 1598 - 9712
eISSN : 2288 - 0690

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