Using gifs in the analysis and design of process systems
William H. Dodrill · 1962
A process system may be defined as an integrated combination of equipment which functions to produce one or more products, and possibly byproducts, by altering the physical and/or chemical nature of raw materials. Even though there is wide diversity in products produced, raw materials used, and equipment combinations employed, all process systems exhibit certain fundamental similarities. Characteristically, any process system maybe subdivided into three operational phases. These are: preparation of raw materials, conversion to products, and recovery and purification. All three phases may not necessarily be included in a specific process system, nor is there always clear distinction among them. Still, there is universality in practice in that only a limited number of types of equipment are used to perform specific types of operations.