Supercritical Fluid Extraction of Reed ( thypa )
Reed ( typha ) mill was converted to liquid products by using organic solvents (methanol, ethanol and acetone) with catalysts (% 10 NaOH and ZnCl 2 ) and without catalyst in an autoclave at temperatures of 533, 553, and 573 K. The liquid products were extracted by liquid-liquid extractio[DSA1]n (benzene and diethyl ether). The yields from supercritical methanol, ethanol and acetone conversions were 36.2, 24.5, and 55.1%, respectively, at 573 K. In the catalytic runs with methanol and ethanol extracts were 46.3 and 35.5% (for NaOH catalyst) and 51.8 and 38.5% (for ZnCl 2 catalyst) respectively, at 573 K. The yields from supercritical methanol were increased from 38.2 to 52.4% as the temperature was increased from 533 to 573 K in the catalytic run.
Keywords: biomass liquefaction; reed ( typha ); supercritical gas extraction; thermochemical process
Document Type: Research Article
Affiliations: 1: YYÜ Educational Faculty, Van, Turkey 2: YYÜ Science and Art Faculty, Van, Turkey
Publication date: 01 April 2005
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