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1. General drying considerations
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Principle
Drying is an operation that removes some of the solvent from a body, by vaporizing the solvent. The final "dry" product is obtained in a solid form of variable size, possibly in the form of a "divided solid" or powder. The product thus passes from an initial "wet" state, either solid or liquid, to a final "dry solid" state, even if it still contains a residual water (or solvent) content.
The solvent considered is most often water, and we will only present the drying of water here. The same principles can be applied to other solvents, organic for example, but taking into account the properties associated with this solvent (latent heat of vaporization, sorption isotherms, etc.). Mixing several solvents is a more complex case, not dealt with here.
Drying is a "thermal separation" operation,...
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Unit operations. Chemical reaction engineering
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General drying considerations
Definitions, drying objectives and competing techniques
Bibliography
Reviews
Journals dealing with the drying unit operation, independently of the product:
Chemical Engineering Science ;
Chemical Engineering Processing ;
Drying Technology Journal ;
International Journal of Thermal Science ;
Journal of Heat and Mass Transfer...
Software tools
Collection of psychrometry software http://www.linric.com
Online psychrometric calculation http://www.psychro.com
Commercial "Dryer 3 000" software [Windows, MacOSX or Unix/Linux], for calculating cereal tower dryers, by simulation using...
Events
IDS Congress: International Drying Symposium (number of the year)
International congress dedicated to drying. It takes place every two years, in a different host country. The proceedings of each congress are available for consultation.
Directory
AFSIA: French Drying Association for Industry and Agriculture
It brings together applied drying research centers, researchers and manufacturers in France. Its headquarters can change (in 2008, INSA Lyon). It organizes or participates in conferences, and produces its own publications (AFSIA publications).
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