Modern engineering practice is becoming largely dependent on computer and information technology. Computer Aided Design (CAD) is therefore used in the design, maintenance and operations of the plants (Oguntoyinbo 1993; Rooney and Steadman 1980; and Westerberg et al. 1979). Plants are generally made up of unit operation equipment, which are similar in functions and differ only in their duty or throughput. A design approach that is yielding positive results is the independent creation of modules, which can be incorporated into large
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systems of flowsheeting (Onifade 2000; Onifade 2001a). The objective of this work is to create a similar module for a binary distillation column.