Výsledky vyhledávání - "Ana L. Paiva"

Kinetics of Lipase-mediated Synthesis of Butyl Butyrate in n -hexane

Autor: F. Xavier Malcata, Ana L. Paiva, Diman van Rossum

Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP

This paper reports experimental and modeling work concerning alcoholysis reactions between butanol and ethyl butanoate, catalyzed by Lipozyme™ in n -hexane, using a batch stirred system at 60°C. Description of the reaction kinetics was based on a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eaab0620c38c41b202f8cfa5c78de0d2
https://doi.org/10.1080/10242420210151

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Comparison of the performance of integrated and sequential reaction and separation units in terms of recovery of a desired product

Autor: Ana L. Paiva, F. Xavier Malcata

Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP

Integration of reaction and separation has experienced fast progress in this decade because it provides a convenient way of alleviating kinetic and/or thermodynamic constraints usually present in the more traditional sequential configuration (where r

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c63b80c151e761d965e2dc1fa633b104
https://doi.org/10.1016/s0009-2509(99)00155-4

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Integrated vs. sequential reaction and separation: contributions for a global analysis

Autor: Ana L. Paiva, Diman van Rossum, F. Xavier Malcata

Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP

Integration of reaction and separation in one single step has often been claimed to provide enhanced processing and economic results when compared with the traditional configuration where a reaction unit is followed by a downstream separation unit, d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::14e9f898e470ad9b1f05080dc0578537
https://doi.org/10.1016/s0009-2509(98)00541-7

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Reversible reaction and diffusion within a porous catalyst slab

Autor: Ana L. Paiva, F. Xavier Malcata

Publikováno v: Chemical Engineering Science. 52:4429-4432

This note intends to help in elucidating how integration of reaction and separation can bring about enhancement of effectiveness factors via consideration of a catalyst immobilized onto a porous slab-shaped bead which catalyzes a reversible reaction

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::96b52a4dccbcc21baa6a628fbd50ef62
https://doi.org/10.1016/s0009-2509(97)00187-5

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Integration of reaction and separation with lipases: An overview

Autor: F. Xavier Malcata, Ana L. Paiva

Publikováno v: Journal of Molecular Catalysis B: Enzymatic. 3:99-109

Integration of reaction and separation steps in processes involving lipases is currently undergoing fast progress because it provides a convenient way to alleviate limiting kinetic factors that are common in biological reactions, viz. decreased produ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::853943a7b93688d0d41dd2607351ba54
https://doi.org/10.1016/s1381-1177(96)00057-4

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Does thermodynamics improve processing when chemical reaction is integrated with physical separation in binary ideal mixtures?

Autor: Ana L. Paiva, F. X. Malcata

Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP

Submitted by Ana Costa (apcosta@porto.ucp.pt) on 2011-05-09T17:16:56Z No. of bitstreams: 1 Does thermodynamics....pdf: 384357 bytes, checksum: eb8f8549f839502b1154a39369ce912f (MD5) Made available in DSpace on 2011-10-21T11:39:02Z (GMT). No. of bitst

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ca9504c47f267ca721eb64cedc5f995
https://doi.org/10.1016/s0009-2509(96)00416-2

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Lipase-catalyzed synthesis of butyl butyrate by alcoholysis in an integrated liquid-vapor system

Autor: F. Xavier Malcata, Diman van Rossum, Ana L. Paiva

Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP

This paper reports experimental work pertaining to alcoholysis between butanol and ethyl butanoate, catalyzed by an immobilized lipase in a liquid-vapor system where chemical reaction and physical separation are simultaneously carried out. The proces

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::caa46bb46ebfbfb3d39242539e5abbb9

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Kinetics and mechanisms of reactions catalyzed by immobilized lipases

Autor: Victor M. Balcão, F. X. Malcata, Ana L. Paiva

Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP

This review focuses on the kinetics of several modes of immobilization of lipases, on the mechanisms of reactions of activation of immobilized lipases, and on the kinetics and mechanisms of reactions catalyzed by immobilized lipases. A comprehensive

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2a41afd8395f7ab44f8d21a3864d9764
https://hdl.handle.net/10400.14/6906

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Cascading reactor-separator sets reduces total processing time for low yield Michaelis-Menten reactions: model predictions

Autor: Diman van Rossum, Ana L. Paiva, F. Xavier Malcata

Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP

Integration of reaction with separation has often been claimed to provide enhanced processing due to alleviation of processing constraints which, like equilibrium limitation or product inhibition, are common in enzyme-catalyzed reactions. In this pap

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31cfdd8ddd861ed2c19e4cc8cc26d3e0

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