Drying of fish press-cake with superheated steam in a pilot plant impingement system

被引：21
作者：
Borquez, R. M. [1 ]
Canales, E. R. [1 ]
Quezada, H. R. [1 ]
机构：
[1] Univ Concepcion, Dept Chem Engn, Concepcion, Chile
来源：
DRYING TECHNOLOGY | 2008年 / 26卷 / 03期
关键词：
impinging stream; mackerel press-cake; superheated steam drying;
D O I：
10.1080/07373930801897986
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Drying tests for pine sawdust and mackerel press-cake with hot air and with superheated steam were carried out in a pilot impingement cylindrical dryer. Wet particles move axially along the dryer, adjusting the inclination of the equipment, whereas hot gases circulate in cross-flow against the particles, forming a corotational impingement front. Feed rate and residence time of solids were studied experimentally as a function of dryer inclination for hot air and superheated steam as drying media. Drying rates and heat and mass transfer coefficients were found to increase at shorter residence times and higher gas temperatures. Dried mackerel press-cake with superheated steam resulted in a product with high moisture removal and very low losses of the valuable omega-3 fatty acids.
引用
收藏
页码：290 / 298
页数：9
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