Výsledky vyhledávání - "Gustavo V. Duarte"

Quantification of lignin-carbohydrate complexes in hardwood pulps, Part 2: Effects of bleaching chemicals

Autor: David J. Kiemle, David J. Nicholson, Aaron T. Leavitt, Gustavo V. Duarte, Raymond C. Francis, Ericka F. Alves

Publikováno v: October 2015. 14:663-670

High kappa number kraft and soda-anthraquinone (soda-AQ or SAQ) pulps from sugar maple (Acer saccharum) were investigated to see how the lignin-carbohydrate complexes (LCC) they contained affected lignin removal by oxygen, chlorine dioxide, and hydro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f7ebc7eac26d7dc8d21230fa08c02766
https://doi.org/10.32964/tj14.10.663

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Pyrolysis kinetics of forestry residues from the Portuguese Central Inland Region

Autor: Jon Alvarez, Gartzen Lopez, Javier Bilbao, Gustavo V. Duarte, Rui Moreira, João Osvaldo Rodrigues Nunes, Maider Amutio, Martin Olazar

Publikováno v: Chemical Engineering Research and Design. 91:2682-2690

The pyrolysis behaviour and kinetics of forest shrub wastes (Cytisus multiflorus, Spartium junceum, Acacia dealbata and Pterospartum tridentatum) from the Portuguese Central Inland Region have been studied in a thermobalance, as a previous step for t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a23622ad58988464986cccaffebac6e6
https://doi.org/10.1016/j.cherd.2013.05.031

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Flash pyrolysis of forestry residues from the Portuguese Central Inland Region within the framework of the BioREFINA-Ter project

Autor: Gartzen Lopez, Martin Olazar, Javier Bilbao, Jon Alvarez, João Osvaldo Rodrigues Nunes, Rui Moreira, Maider Amutio, Gustavo V. Duarte

Publikováno v: Bioresource Technology. 129:512-518

The feasibility of the valorization by flash pyrolysis of forest shrub wastes, namely bushes (Cytisus multiflorus, Spartium junceum, Acacia dealbata and Pterospartum tridentatum) has been studied in a conical spouted bed reactor operating at 500 °C,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::41ca7eae8f6da014dd0cee0f73cfeb22
https://doi.org/10.1016/j.biortech.2012.11.114

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Inverse gas chromatography and XPS of extracted kraft pulps

Autor: José A. F. Gamelas, Paulo Ferreira, Gustavo V. Duarte

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

Kraft pulps at the κ number level of 15 obtained from Acer saccharum (sugar maple) and Eucalyptus globulus prepared with and without hot water extraction (HWE) were analyzed by inverse gas chromatography (IGC) and X-ray photoelectron spectroscopy (X

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ceb3bc55e79c1d4f4d4a2375697468c
https://doi.org/10.1515/hf-2012-0126

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Properties of extracted Eucalyptus globulus kraft pulps

Autor: Gustavo V. Duarte, Thomas E. Amidon, José A. F. Gamelas, B. F. Ramarao, Paulo Ferreira

Publikováno v: April 2012. 11:47-55

This work was a comprehensive study of the properties of extracted Eucalyptus globulus kraft pulps. Five levels of hot water extraction were performed, each followed by kraft cooking to three different kappa numbers. As extraction took place, the hem

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8bcae5ea45067526b6cfd8800da999cc
https://doi.org/10.32964/tj11.4.47

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Effect of Hot Water Extraction on Hardwood Kraft Pulp fibers (Acer saccharum, Sugar Maple)

Autor: Gustavo V. Duarte, Thomas E. Amidon, Paulo T. Ferreira, Bandaru V. Ramarao

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

This study focuses on the properties of fibers obtained from the kraft pulping of pre-extracted sugar maple wood chips. Hot-water pre-extraction was carried out for different times characterized by P-factors in the range of 12 and 600 h. It was found

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ff7bc91dad7c45a99edb5f08e5a2506
https://doi.org/10.1021/ie200639u

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Evaluation of the papermaking potential of Ailanthus altissima

Autor: José A. F. Gamelas, Jorge Canhoto, Raphaël Passas, M. G. V. S. Carvalho, Gustavo V. Duarte, Paulo Ferreira

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

In this work, Ailanthus altissima (tree-of-heaven) wood was analyzed for its chemical, morphological and papermaking properties. The A. altissima wood was cooked under kraft conditions using different active alkali charges and then handsheets were pr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::caf4b42a0826c100d22c9b6c0db3f29a
https://hdl.handle.net/10316/24554

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Use of Hardwoods in an Integrated Biorefinery: Modelling of the Pretreatment Process and Papermaking Potential

Autor: Rui Moreira, Bandaru V. Ramarao, Paulo T. Ferreira, Gustavo V. Duarte

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

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a69745d8375a0d88165fab79a1446b14
http://hdl.handle.net/10316/28284

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