Multistage Zeolite drying for energy-efficient drying

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

Research output: Contribution to journalArticleAcademicpeer-review

35 Citations (Scopus)

Abstract

This work discusses the potential of three multistage zeolite drying systems (counter-, co-, and cross-current) with a varying number of stages. The evaluation showed that for 2¿4 stages with heat recovery the efficiency of the systems ranges between 80 and 90%. Additionally, by introducing a compressor, the latent heat in the exhaust air from the regenerator is recovered and used to heat the inlet air for an additional drying stage. As a result, for the counter-current drying system and compressor pressure 1.5¿2 bar, a maximum energy efficiency of 120% is achieved, which results in halving the energy consumption compared to conventional drying systems.
Original languageEnglish
Pages (from-to)1053-1067
JournalDrying Technology
Volume25
Issue number6
DOIs
Publication statusPublished - 2007

Keywords

  • process integration
  • air

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