Analysis of the contact time in a cyclic thermal swing adsorption process

Daeho Ko, il Moon, Dae Ki Choi

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

In this study were performed dynamic simulations of a cyclic thermal swing adsorption (TSA) process to analyze the effects of contact time on the dynamic behaviors and were compared the breakthrough curves of simulations with those of experiments. The fixed bed of TSA is charged with activated carbon as an adsorbent to purify and regenerate the ternary mixtures consisting of benzene, toluene, and p-xylene. The conditions are nonequilibrium, nonisothermal, and nonadiabatic. The cyclic steady-state (CSS) cycles are obtained under various conditions by dynamic simulations. That is to say, this work perceived the influences of purge gas velocity and bed length on breakthrough curves, CSS convergence time, cyclic operating step time, purge gas consumed,regeneration energy requirement, and adsorption ability at CSS.

Original languageEnglish
Pages (from-to)1603-1615
Number of pages13
JournalIndustrial and Engineering Chemistry Research
Volume41
Issue number6
DOIs
Publication statusPublished - 2002 Mar 20

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Adsorption
Gases
Computer simulation
Toluene
Xylene
Benzene
Activated carbon
Adsorbents
Hot Temperature
Experiments
4-xylene

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

Cite this

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Analysis of the contact time in a cyclic thermal swing adsorption process. / Ko, Daeho; Moon, il; Choi, Dae Ki.

In: Industrial and Engineering Chemistry Research, Vol. 41, No. 6, 20.03.2002, p. 1603-1615.

Research output: Contribution to journalArticle

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AB - In this study were performed dynamic simulations of a cyclic thermal swing adsorption (TSA) process to analyze the effects of contact time on the dynamic behaviors and were compared the breakthrough curves of simulations with those of experiments. The fixed bed of TSA is charged with activated carbon as an adsorbent to purify and regenerate the ternary mixtures consisting of benzene, toluene, and p-xylene. The conditions are nonequilibrium, nonisothermal, and nonadiabatic. The cyclic steady-state (CSS) cycles are obtained under various conditions by dynamic simulations. That is to say, this work perceived the influences of purge gas velocity and bed length on breakthrough curves, CSS convergence time, cyclic operating step time, purge gas consumed,regeneration energy requirement, and adsorption ability at CSS.

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