Journal
DRYING TECHNOLOGY
Volume 27, Issue 11, Pages 1205-1216Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/07373930903263210
Keywords
Adsorption; Drying; Energy efficiency; Regeneration; Zeolite
Categories
Funding
- Chemical Engineering Department of Diponegoro University, Semarang, Indonesia [NEOT01005]
- Dutch Ministry of Economics
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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.
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