Evaporation is one of the central process operations in almost all processes in the petrochemical, chemical, pharmaceutical, cosmetic, food processing, refrigeration or energy industry. Thereby, in many applications an evaporation that is particularly gentle on the product is essential.
Product damage can be caused by exceeding product-compatible maximum temperatures, a too high residence time at elevated temperature, a too wide and partly undefined residence time distribution, mechanical damage due to shear in a circulation pump or the formation of steam bubbles on a hot wall. Gentle evaporation is often made more difficult by a multi-phase nature of the product stream, e.g. fibers in fruit juices or emulsions when processing milk or fats, an increased viscosity or a tendency to foam or to form deposits. Too harsh evaporation can lead to a loss of valuable product or a loss of quality. The resulting reduction in revenue is to be assessed against increased process or equipment costs for a product-friendly evaporation.
Therefore, a product-gently evaporation requires the optimal interplay of process design and equipment implementation. In the process and apparatus design, the three steps of selection - design - dimensioning and definition of details must be observed and used in a targeted manner. Only then, a full range of possible alternative solutions can be developed and, together with economic evaluations, lead to an overall optimum.
Target audience
Engineers, chemists, biologists, biotechnologists, physicists, pharmacists, food chemists and other professional groups in industry and universities who deal with evaporation problems in the planning, development and operation of production plants.
More information will follow soon.
