Book

Description

Fuzzy analogical gate strategy has been proposed for synthesizing multicomponent separation sequences for five, six and seven components and helping for decision making when there are a large number of possibilities. A new systematic method for optimal synthesis of heat integrated distillation column has been developed, the proposed method which is Fuzzy Analogical Gates consists of three sequential steps to select the best separation sequence: estimation of the normalized variables parameters, Fuzzy analogical gates and selection of the best split. Two analogical gates (symmetric and asymmetric) are employed. The symmetric gate (AND gate) inputs are the normalized heat load, normalized column temperature difference. The asymmetric gate (Invoke gate) inputs are the output of the AND gate and the normalized (Q.∆T). The method has been tested for three industrial cases which have been solved previously using other approaches. Process integration does not only involve the search for the optimal design parameters, but even more important the development of the optimal processing strategy.