Výsledky vyhledávání - "C. Alvim-Ferraz"

Otimization of Crambe abyssinica enzymatic transesterification using response surface methodology

Autor: Emanuel Costa, Manuel Almeida, Joana M. Dias, C. Alvim-Ferraz

Publikováno v: Renewable Energy. 174:444-452

Crambe abyssinica is a non-edible crop able to adapt to adverse climatic conditions, arising as an alternative feedstock for biodiesel production. With this objective, an eco-friendly route for biodiesel production from crambe oil by enzymatic transe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e32f94f6e6b36a9835bc617adf433078
https://doi.org/10.1016/j.renene.2021.04.042

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Monitoring Enzymatic Hydroesterification of Low-Cost Feedstocks by Fourier Transform InfraRed Spectroscopy

Autor: Manuel Almeida, M. da C. Alvim-Ferraz, Joana M. Dias, Mariana Cruz

Publikováno v: Catalysts, Vol 9, Iss 6, p 535 (2019)
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Catalysts
Volume 9
Issue 6

Enzymatic hydroesterification is a heterogeneous catalyzed process suitable for the conversion of low-cost feedstocks in biodiesel production, namely, because of its tolerance to high free fatty acid contents. The current study describes the use of F

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bcfd6b292f19a378024fb4ad28b42611
https://www.mdpi.com/2073-4344/9/6/535

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The cycle of biodiesel production from Crambe abyssinica in Portugal

Autor: Emanuel Costa, Joana M. Dias, Manuel Almeida, C. Alvim-Ferraz

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

Biodiesel is usually produced from edible oils which compete with the food market. Crambe abyssinica is a non-food crop referred as having high potential for biodiesel production. An entire cycle of seeding, harvesting, oil extraction and biodiesel p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9b8dad6bda77cea6641315e56f6a425b

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Enzymatic esterification of pre-treated and untreated acid oil soapstock

Autor: J. M. Borges, Joana M. Dias, C. Alvim-Ferraz, Manuel Almeida, S. Budžaki

Publikováno v: Scopus-Elsevier
WASTES – Solutions, Treatments and Opportunities II ISBN: 9781315206172

The soapstock oil presents high Free Fatty Acid (FFA) content, being potentially a sustainable alternative feedstock for biodiesel production. In the present work, enzymatic esterification using a suspension of Thermomyces lanuginosus lipase was cond

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7bcfd066550eed36f8beeb98906560e0
https://hdl.handle.net/10216/116151

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Evolution of air pollution in Oporto area

Autor: M. C. Alvim Ferraz, M. C. Faria Ferraz

Publikováno v: Environmental monitoring and assessment. 11(1)

The analysis of pollution data was the support for the proposed remodelation of the network and allowed an estimation of the Air Quality evolution since 1968.The most important pollution sources in Oporto area are the motor traffic, one oil refinery

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::06d02ee0b4c1db9b760bbb027caad2d9
https://pubmed.ncbi.nlm.nih.gov/24248798

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Air pollution and lung diseases in Oporto Area

Autor: J M Ferraz, M. C. Faria Ferraz, M. C. Alvim Ferraz, P I Fonseca

Publikováno v: Scopus-Elsevier

This area has a rate of patients with obstructive chronic lung disease that is the highest in Portugal and the second in Europe. Levels of pollution observed in 1985/86 and 1986/87 allowed evaluating the effects of concentrations lower than those tha

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a5456e2e63b4f20db6b45484ef32a8e2
https://pubmed.ncbi.nlm.nih.gov/24248890

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