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PROCESS CONTROL IN THE EDUCATION OF ORGANIC CHEMICAL TECHNOLOGY

Csontos, lstván; Department of Organic Chemical Technology, Budapest University of Technology and Economics; Marosi, György; Department of Organic Chemical Technology, Budapest University of Technology and Economics; Faigl, Ferenc; Department of Organic Chemical Technology, Budapest University of Technology and Economics

Laboratory practices for demonstrating the importance of advanced process control methods in the organic chemical technologies have been elaborated. It required the development of a system tha tintegrates the advantages ...

APPLICATION OF MODEL PREDICTIVE CONTROL TO BATCH POLYMERIZATION REACTOR

Ghasem, N. M.; Department of Chemical Engineering, University of Malaya, Kuala Lumpur, Malaysia; Hussain, M. A.; Department of Chemical Engineering, University of Malaya, Kuala Lumpur, Malaysia; Sata, S. A.; Department of Chemical Engineering, University of Malaya, Kuala Lumpur, Malaysia

The absence of a stable operational state in polymerization reactors that operates in batches is factor that determine the need of a special control system. In this study, advanced control methodology is implemented for ...

Neural network modelling of a depollution process

Steyer, J.P.; Pelayo-Ortiz, C.; Gonzalez-Alvarez, V.; Bonnet, B.; Bories, A. (2000)

In this paper an artificial neural network is developed to model a new depollution process that uses sequential cultures of anaerobic bacteria and yeasts to efficiently remove both carbon and nitrogen from wastewaters. A ...

Neural network modelling of a depollution process

Steyer, J.P.; Pelayo-Ortiz, C.; Gonzalez-Alvarez, V.; Bonnet, B.; Bories, A. (2000)

In this paper an artificial neural network is developed to model a new depollution process that uses sequential cultures of anaerobic bacteria and yeasts to efficiently remove both carbon and nitrogen from wastewaters. A ...

Determination of Cu in tequila by anodic stripping voltammetry

Carreon-Alvarez, A.; Casillas, N.; Ibanez, J.G.; Hernandez, F.; Prado-Ramirez, R.; Barcena-Soto, M.; Gomez-Salazar, S. (2008)

Concentrations of metals such as copper in alcoholic beverages must be strictly regulated due to negative effects ranging from beverage spoilage and hazing, to sensorial and health consequences. In this paper, a voltammetric ...

Synthesis and characterization of polyacrylamide-chitosan hydrogels

Ortega-Gudino, P.; Sanchez-Diaz, J.C.; Becerra, F.; Martinez-Ruvalcaba, A.; Gonzalez-Alvarez, A. (2007)

Polyacrylamide/chitosan hydrogels were synthesized in aqueous itaconic acid solution (1% w/w), in order to determine its swelling kinetics at various chitosan concentrations. Analysis of the hydrogel swelling behavior ...

Synthesis and characterization of polyacrylamide-chitosan hydrogels

Ortega-Gudino, P.; Sanchez-Diaz, J.C.; Becerra, F.; Martinez-Ruvalcaba, A.; Gonzalez-Alvarez, A. (2007)

Polyacrylamide/chitosan hydrogels were synthesized in aqueous itaconic acid solution (1% w/w), in order to determine its swelling kinetics at various chitosan concentrations. Analysis of the hydrogel swelling behavior ...

Assembly of debranched xylan from solution and on nanocellulosic surfaces

Bosmans, T.J.; Stepan, A.M.; Toriz, G.; Renneckar, S.; Karabulut, E.; Wagberg, L.; Gatenholm, P. (2014)

This study focused on the assembly characteristics of debranched xylan onto cellulose surfaces. A rye arabinoxylan polymer with an initial arabinose/xylose ratio of 0.53 was debranched with an oxalic acid treatment as a ...

Assembly of debranched xylan from solution and on nanocellulosic surfaces

Bosmans, T.J.; Stepan, A.M.; Toriz, G.; Renneckar, S.; Karabulut, E.; Wagberg, L.; Gatenholm, P. (2014)

This study focused on the assembly characteristics of debranched xylan onto cellulose surfaces. A rye arabinoxylan polymer with an initial arabinose/xylose ratio of 0.53 was debranched with an oxalic acid treatment as a ...

Interfacial tensions and phase behavior of alcohol-hydrocarbon-water-sodium chloride systems

Puig, J.E.; Hemker, D.L.; Gupta, A.; Davis, H.T.; Scriven, L.E. (1987)

The phase behavior and interfacial tensions of mixtures of alcohol, alkane, water, and sodium chloride that split into two or three liquid phases at 25�C are reported as a function of type of alcohol and alkane and sodium ...

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