Evaluation of drying and degradation kinetics using neurocomputing

Abstract

Application of artificial neural network (ANN) in chemical engineering with special reference to drying process is discussed in the paper. Two types of networks: RBF and MLP, which are important for the description of a process dynamics, are presented. As an example drying and degradation of ascorbic acid in agricultural products are considered. The final conclusion supported with experimental data states that the type of ANN should be carefully selected because the real capability of the ANN model for a given dynamic problem is expressed in recurrent working mode

Recent Advances in Catalytic Conversion of Ethanol to Chemicals

“…The main issue in developing the biosynthesis of 1-butanol is the low concentration of biobutanol fermentation broth. This is limited by the toxic metabolic product of the bacterium Clostridium acetobutylicum . Catalytic production of 1-butanol from ethanol is another route to convert biomass into valuable chemicals.…”

“…This is limited by the toxic metabolic product of the bacterium Clostridium acetobutylicum. 126 Catalytic production of 1-butanol from ethanol is another route to convert biomass into valuable chemicals. Two reaction pathways have been proposed for the formation of 1-butanol from ethanol.…”

Role of the surface intermediates in the stability of basic mixed oxides as catalyst for ethanol condensation

“…2 The large availability as well as its potential as reactant for different catalytic conversions justify the high interest for its upgrading as an alternative sustainable raw material, not only for obtaining biofuels, [3][4][5] but also as a platform for the manufacture of other petrochemicals, such as butadiene, butanol or acetone 6 Among the different technological alternatives, 7 the chemo-catalytic route (following the Guerbet reaction) is considered as the most promising one, even above the biological ones. 8 1-Butanol is the most interesting condensation adduct that can be obtained from bioethanol. It has been proposed as renewable fuel, with better properties than the starting bioethanol (higher energetic density and less hydrophilic behavior).…”