Kinetic modelling of decyl acetate synthesis by immobilized lipase-catalysed transesterification of vinyl acetate with decanol in supercritical carbon dioxide

2009 ◽  
Vol 50 (2) ◽  
pp. 138-145 ◽  
Author(s):  
Manuela V. Oliveira ◽  
Sílvia F. Rebocho ◽  
Adriano S. Ribeiro ◽  
Eugénia A. Macedo ◽  
José M. Loureiro
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Vinyl Acetate ◽  
Kinetic Modelling ◽  
Immobilized Lipase ◽  
Decyl Acetate ◽  
Supercritical Carbon

scholarly journals Effects of Substrate Solubility in Interesterification with Triolein by Immobilized Lipase in Supercritical Carbon Dioxide

1998 ◽  
Vol 62 (1) ◽  
pp. 170-172 ◽  
Author(s):  
Seung-Heon YOON ◽  
Hideki NAKAYA ◽  
Osamu ITO ◽  
Osato MIYAWAKI ◽  
Kwan-Hwa PARK ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Immobilized Lipase ◽  
Supercritical Carbon

Cobalt-Mediated Radical Polymerization of Vinyl Acetate and Acrylonitrile in Supercritical Carbon Dioxide

2016 ◽  
Vol 37 (6) ◽  
pp. 539-544 ◽  
Author(s):  
Anthony Kermagoret ◽  
Ngoc Do Quyen Chau ◽  
Bruno Grignard ◽  
Daniela Cordella ◽  
Antoine Debuigne ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Radical Polymerization ◽  
Vinyl Acetate ◽  
Supercritical Carbon

Dynamic Kinetic Resolution of Sec-Alcohols in Ionic Liquids/Supercritical Carbon Dioxide Biphasic Systems

2009 ◽  
Vol 7 (1) ◽  
Author(s):  
Pedro Lozano ◽  
Teresa De Diego ◽  
Michel Vaultier ◽  
Jose L Iborra
Keyword(s):  
Carbon Dioxide ◽  
Ionic Liquids ◽  
Supercritical Carbon Dioxide ◽  
Kinetic Resolution ◽  
Immobilized Lipase ◽  
Enzymatic Catalysis ◽  
Chemical Properties ◽  
Dynamic Kinetic Resolution ◽  
Biphasic Systems ◽  
Supercritical Carbon

Supercritical fluids and ionic liquids are neoteric solvents that can be used as non-conventional reaction media for enzymatic catalysis under optimised conditions. These solvents exhibit many different physical and chemical properties, but have two cross-points: they are not-miscible and can be easily separated from substrates and products, and they can be reused. As supercritical carbon dioxide (scCO2) can dissolve in the ionic liquid (IL) phase (up to 0.7 mole fraction), a new concept of biphasic bioreactors for Fine Chemicals syntheses may be developed by using both enzyme and chemical catalysts "immobilized" into the IL phase, and substrates transported by the scCO2 phase. The system was tested for the continuous chemoenzymatic dynamic kinetic resolution (DKR) of rac-1-phenylethanol in IL/scCO2 by using simultaneously immobilized lipase (Novozym 435) and acid zeolites catalysts at 50°C and 100 bars, providing good yields (up 98.0 %) for R-phenylethyl propionate ester with excellent enantioselectivity (up to 97.3 %), and without any activity loss after 14 days of operation.

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