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Influence of the Nozzle Geometry on Spray‐Dried Particle Formation Expanding Superheated Suspensions
Author(s) -
Monse K.,
Linnepe T.,
Groom S.,
Walzel P.
Publication year - 2003
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.200303039
Subject(s) - suspension (topology) , nozzle , superheating , superheated steam , evaporation , flash evaporation , particle (ecology) , pressure drop , drop (telecommunication) , materials science , air suspension , atmospheric pressure , aerosol , chemical engineering , chemistry , meteorology , mechanics , chromatography , thermodynamics , mechanical engineering , engineering , physics , oceanography , geology , mathematics , homotopy , axle , pure mathematics , organic chemistry
Expanding a superheated solution or suspension to ambient atmosphere leads to a flash evaporation as a part of the pure liquid evaporates. If a superheated solution or suspension is atomized into a spray dryer working under atmospheric conditions, the particles formed are smaller than the particles resulting from nonsuperheated suspensions. The amount of air needed to dry the particles is reduced and the filters or cyclones installed for exhaust gas cleaning can be operated at lower pressure drop. Because of the decreased amount of drying air, the energy losses are also reduced.