Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Johanna Gaitán-Álvarez"'
Publikováno v:
Materials, Vol 15, Iss 9, p 3394 (2022)
Magnetic wood is a composite material that achieves harmony between both woody and magnetic functions through the active addition of magnetic characteristics to the wood itself. In addition to showing magnetic characteristics, magnetic wood offers lo
Externí odkaz:
https://doaj.org/article/d0d3dc3f0118447397946b64e388a924
Autor:
Johanna Gaitán-Álvarez, Roger Moya
Publikováno v:
Revista Chapingo: Serie Ciencias Forestales y del Ambiente, Vol 22, Iss 3, Pp 325-337 (2016)
La torrefacción y peletización se han estudiado en la generación de calor a partir de residuos lignocelulósicos, para incrementar las propiedades energéticas del material. El objetivo del presente trabajo fue torrefaccionar aserrín de Gmelina a
Externí odkaz:
https://doaj.org/article/4c986c3e34f34de981ebb91fe681262d
Publikováno v:
Energies, Vol 11, Iss 4, p 696 (2018)
We evaluated the thermogravimetric and devolatilization rates of hemicellulose and cellulose, and the calorimetric behavior of the torrefied biomass, of five tropical woody species (Cupressus lusitanica, Dipteryx panamensis, Gmelina arborea, Tectona
Externí odkaz:
https://doaj.org/article/3994646111d040079e67c55789ae6df0
Autor:
Alexander Berrocal, George I. Mantanis, Roger Moya, Charalampos Lykidis, Johanna Gaitán-Álvarez
Publikováno v:
Wood Material Science & Engineering. 18:112-119
Publikováno v:
Wood Material Science & Engineering. 17:410-419
This work focused on the upgrading of non-durable tropical wood species originating from fast-growing plantations of Costa Rica. Modification of such tropical woods with furfuryl alcohol, although ...
Autor:
Edgar Ortiz-Malavassi, Johanna Gaitán-Álvarez, David Fernández-Sólis, Alexander Berrocal, Roger Moya
Publikováno v:
JOURNAL OF TROPICAL FOREST SCIENCE. 32:379-390
Publikováno v:
Journal of Wood Science, Vol 66, Iss 1, Pp 1-10 (2020)
Acetylation of softwoods has been largely investigated to increase the dimensional stability and biological resistance of wood. However, the knowledge of this technology has not been applied to tropical hardwood species up to date. The objective of t
Publikováno v:
BioResources. 15:4802-4822
This work aimed to evaluate the effect of the precipitation of CaCO3 via subsequential in-situ mineral formation based on a solution-exchange process of two solution-exchange cycles via impregnation with CaCl2 in ethanol and NaHCO3 in water. The effe
Publikováno v:
Energy. 149:1-10
Light (Tlight), middle (Tmiddle) and severe (Tsevere) torrefaction processes by TGA in woody biomass were evaluated in relation to devolatilization rate (Drate), maximum devolatilization rate (DRmax), temperature at the level of 50% weight loss (T50)
Publikováno v:
BioResources. 12:7566-7589
Torrefaction can increase the energy yield of biomass for better utilization in bioenergy, but chemical changes occur during the pretreatment process. Wood residues of Cupressus lusitanica, Dipteryx panamensis, Gmelina arborea, Tectona grandis, and V