Simplified analytical shrinking core breakthrough model for the design of a packed column of Lewatite TP 214 chelating resin

Mohammad Outokesh, Hitoshi Mimura, Houshyar Noshad, Yuichi Niibori

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

A preliminary analytical model for prediction of the breakthrough behavior of Lewatite TP 214 chelating resin in adsorption of Ag+ ions was developed on the basis of the shrinking core model and constant pattern approximation (CPA). The model, instead of fractional residual capacity or "f" factor of classical CPA, uses a correlation between C 0(Ve -Vb) and Q -C0Vb. In order to find the adjustable parameters of the model, a semiempirical correlation between operational parameters and one of the adjustable parameters in the form of B (qsatv/Co) was devised. In addition, the available mass transfer correlations were also employed for estimation of the adjustable parameters. The results demonstrated the superiority of the first method from both simplicity and accuracy points of view. The model could successfully estimate the breakthrough and exhaustion points. Moreover, in contrast to the famous bed depth service time (BDST) model, it was capable of fitting the experimental breakthrough curves.

Original languageEnglish
Pages (from-to)5412-5419
Number of pages8
JournalIndustrial and Engineering Chemistry Research
Volume46
Issue number16
DOIs
Publication statusPublished - 2007 Aug 1

ASJC Scopus subject areas

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

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