Modelling of influential parameters on a continuous evaporation process by Doehlert shells

Authors: Fauduet H.¹; Porte C.²; Havet J-L.²; Daguet D.¹

Source: Journal of Automated Methods & Management in Chemistry, Volume 25, Number 1, January-February 2003 , pp. 21-30(10)

Publisher: Taylor and Francis Ltd

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Abstract:

The modelling of the parameters that influence the continuous evaporation of an alcoholic extract was considered using Doehlert matrices. The work was performed with a wiped falling film evaporator that allowed us to study the influence of the pressure, temperature, feed flow and dry matter of the feed solution on the dry matter contents of the resulting concentrate, and the productivity of the process. The Doehlert shells were used to model the influential parameters. The pattern obtained from the experimental results was checked allowing for some dysfunction in the unit. The evaporator was modified and a new model applied; the experimental results were then in agreement with the equations. The model was finally determined and successfully checked in order to obtain an 8% dry matter concentrate with the best productivity; the results fit in with the industrial constraints of subsequent processes.

Document Type: Research article

DOI: http://dx.doi.org/10.1080/1463924031000086049

Affiliations: 1: Laboratoire de Productique Chimique--EA 21, Institut Universitaire de Technologie, Université d'Orléans, BP 6729, F-45067 Orléans-Cedex 2, France 2: Laboratoire de Chimie Industrielle et Génie des Procédés--EA 21, Conservatoire National des Arts et Métiers, 2 rue Conté, F-75003 Paris, France

Publication date: 2003-01-01

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