Fuzzy analogical gates for separation sequence synthesis

In this work fuzzy analogical gates are used for generating separation schemes. The proposed algorithm consists of three sequential steps: estimation of the normalized separation mass load, utilization of the fuzzy analogical gates, and selection of the best split. Two fuzzy analogical gates (symmetric and asymmetric) are employed. The symmetric gate (AND gate) inputs are the normal boiling point difference and the normalized estimated mass load. The asymmetric gate (Invoke gate) inputs are the output of the AND gate and the relative volatility. The method has been tested for a number of conventional problems reported in the literature. The results of the proposed method are consistent with the reported optimum solutions.