Collect. Czech. Chem. Commun. 1991, 56, 2107-2141

Large qualitative models of complex chemical and bioengineering processes

Mirko Dohnal

Department of Chemical and Food Engineering, Technical University, 616 69 Brno


Qualitative model is a theoretical background of commonsense. Complex qualitative models can have prohibitively many solutions (qualitative states). Therefore a qualitative analogy of such classical quantitative tools as e.g. the decomposition is developed. Practical applications of decomposition principle is nearly always ad hoc. Therefore two case studies are presented in details, a chemical process (mixer, chemical reactor, separator) and an anaerobic fermentor.