hadi zohreie - department of chem eng faculty of eng ferdowsi university of mashhad i.r.iran
mohammad ali fanaei - department of chem eng faculty of eng ferdowsi university of mashhad i.r.iran
ali ahmadpour

Characterization of porous materials has been an interesting issue for researchers. Conditions and operating parameters of preparing porous materials are very important to reach to required charactristics of porous materials. Some methods have been used for estimation of these parameters for instance neural networks. In this paper hierarchical hybrid-fuzzy neural network (HHFNN) is used for approximation of operating parameters of activated carbon preparation as there are mixed input variables, continuous and discrete. The results show that HHFNN approximate the parameters beter than standard neural network (SNN). Also fewer parameters is needed in HHFNN related to SNN.

HHFNN,modeling ,activated carbon,adsorption,fuzzy systems ,neural networks