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Projects / Programmes source: ARIS

Concentration methods of natural compounds at elevated pressures

Research activity

Code Science Field Subfield
2.02.02  Engineering sciences and technologies  Chemical engineering  Separation processes 

Code Science Field
T350  Technological sciences  Chemical technology and engineering 
Keywords
dense gasses, supercritical fluids, separation, extraction, concentration, phase equilibria, equations of state, mass transfer
Evaluation (rules)
source: COBISS
Researchers (6)
no. Code Name and surname Research area Role Period No. of publicationsNo. of publications
1.  12636  Davorin Bauman  Chemical engineering  Researcher  2002 - 2004  83 
2.  17868  PhD Majda Hadolin Kolar  Chemical engineering  Researcher  2002 - 2004  108 
3.  21689  PhD Petra Kotnik  Chemical engineering  Researcher  2002 - 2004  155 
4.  15241  PhD Andreja Rižner Hraš  Chemical engineering  Researcher  2002 - 2004  58 
5.  20200  PhD Špela Stangler Herodež  Oncology  Researcher  2002 - 2004  241 
6.  11865  PhD Mojca Škerget  Chemical engineering  Head  2002 - 2004  768 
Organisations (1)
no. Code Research organisation City Registration number No. of publicationsNo. of publications
1.  0794  University of Maribor, Faculty of Chemistry and Chemical Engineering  Maribor  5089638012  13,089 
Abstract
The research project is oriented in: - research of phase equilibria in binary and ternary systems what includes experimental determining of equilibrium solubilities of substances ( pesticides, vitamins and other active natural components) and solid-liquid phase transitions in sub- and supercritical fluids, as well as modeling with cubic equation of states. - extraction of plant materials (green tea, camomile, Chilly Pepper, Melisa Officinalis, L., Lavandula, Thymus vulgaris L., Origanum majorana L., Milk thistle..) - mass transfer studies in systems with supercritical fluids, which includes effects of particle size, solvent flow rate, pressure and temperature and effect of water content on extraction rate, modelling of extraction curves and determining of transport coefficients. Aim is determine the parameters needed in dimensioning high pressure separation process of plant materials which are missing in the literature and further to analyse and explain the behaviour of named highly nonideal systems from the thermodynamical point of view.
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