Supercritical extraction of plant material with carbon dioxide. Scaling up from laboratory to ?-technical scale

Supercritical extraction of plant material with carbon dioxide. Scaling up from laboratory to ?-technical scale
BUJNOWSKI Z., BRZOZOWSKI R., SZARLIK S., CYBULSKI J., JEZIERSKA-ZIĘBA M., KĄKOL B., DĄBROWSKI Z., GOŚ A.

Please cite as: CHEMIK 2011, 65, 9, 849-858

Velocity and yield of the extraction of linseed cake and leafs of green tea with supercritical carbon dioxide were tested. Initially both processes were tested in the laboratory scale (150 cm3) under pressure of 20 MPa, using a dried and grinded plant feed (90-140 g). The influence of an entrainer was also tested. Optimized conditions such as temperature were used in scaling up the extraction. The ? scale process was carried out in the extractor of 10 dm3 volume and under pressure of 25 MPa. Results achieved in the large scale experiments confirmed conclusions from the laboratory experiments.

Keywords: supercritical extraction, carbon dioxide, linseed, green tea leafs

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