Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.14/6873
Título: Process integration involving lipase-catalyzed ester synthesis reactions
Autor: Paiva, Ana L.
Malcata, F. Xavier
Data: 1994
Editora: Springer Verlag
Citação: PAIVA, Ana L. ; MALCATA, F. Xavier - Process integration involving lipase-catalyzed ester synthesis reactions. Biotechnology Techniques. ISSN 1573-6784. 8:9 (1994) 629-634
Resumo: The technical feasibility of integrating bioconversion (using a lipase from Mucor miehei immobilized by ion exchange onto a macroporous resin) and product recovery (via mass transfer towards liquid/vapor equilibrium) was experimentally verified for the production of ethyl acetate from acetic acid and ethanol at 30 and 40 °C. The configuration selected consisted of a packed bed thermostatted reactor inserted between the condenser and the liquid reflux to a distillation column. The concentrations of the aforementioned components and water were measured periodically for a 9 to 10-h period. The extents of conversion of acetic acid ranged from 1 to 32% at 30 °C, and from 13 to 25% at 40 °C, and they were maximum at initial molar fractions of acid of ca. 0.3 and 0.4, respectively. The ratio of the reaction product to the equilibrium reaction product increased from 2 to 32 at 30 °C, and from 5 to 27 at 40 °C when the initial molar fraction of acid in the feed increased from 0.2 to 0.7.
Peer review: yes
URI: http://hdl.handle.net/10400.14/6873
Versão do Editor: The original publication is available at www.springerlink.com
Aparece nas colecções:ESB - Artigos em revistas internacionais com Arbitragem / Papers in international journals with Peer-review

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