Assessment of a two-stage zeolite dryer for energy-efficient drying

M. Djaeni, P.V. Bartels, C.J. van Asselt, J.P.M. Sanders, G. van Straten, A.J.B. van Boxtel

Research output: Contribution to journalArticleAcademicpeer-review

16 Citations (Scopus)

Abstract

Multistage adsorption drying with zeolite is experimentally evaluated for a single- and a two-stage dryer. For a 1:1 ratio between air flows for drying and regeneration, the energy efficiency for a single-stage system 50-54% and for the two-stage system 63%. Calculations with a calibrated model show that the two-stage system achieves a 4:1 ratio between the air flows an efficiency of 85%, 12% above that of a single-stage system. A sensitivity analysis shows the influence of operational conditions on the energy efficiency. Options to realize multistage adsorption dryer systems and to control such systems as well as the economic aspects are discussed
Original languageEnglish
Pages (from-to)1205-1216
JournalDrying Technology
Volume27
Issue number11
DOIs
Publication statusPublished - 2009

Keywords

  • process integration
  • adsorption

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