The basics of a reaction engineering approach to modeling air-drying of small droplets or thin-layer materials

In this article, the development of a reaction engineering approach (REA) to modeling air drying of thin-layer materials or solids droplet/particles, a 10-year-old approach, is critically reviewed. This approach for drying data reduction has been seen to be successful in several applications (droplet drying and layer drying). The historical aspects and its possible relations to the characteristic drying rate curve (CDRC) model, one of the most well-known drying kinetics models, have been articulated. Possible improvements and future prospects are discussed.