期刊
DRYING TECHNOLOGY
卷 25, 期 4-6, 页码 1053-1067出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/07373930701396535
关键词
drying; efficiency; heat recovery; multistage; zeolite
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.
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