Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Allen Puente-Urbina"'
Autor:
Zeyou Pan, Allen Puente-Urbina, Syeda Rabia Batool, Andras Bodi, Xiangkun Wu, Zihao Zhang, Jeroen A. van Bokhoven, Patrick Hemberger
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-9 (2023)
Abstract Unveiling catalytic mechanisms at a molecular level aids rational catalyst design and selectivity control for process optimization. In this study, we find that the Brønsted acid site density of the zeolite catalyst efficiently controls the
Externí odkaz:
https://doaj.org/article/0b93fc5bc22742109acb0c1c39b26d16
Publikováno v:
Journal of Natural Fibers, Vol 20, Iss 1 (2023)
Pineapple leaf fibers (PALF) were biopulped using Trametes versicolor, and the resulting biopulp was bleached with xylanase-enzymatic treatments. The biopulping was extensively described using determinations of fiber morphology, color, chemical compo
Externí odkaz:
https://doaj.org/article/2195ab7010e446eb9e4f30c0dd29314b
Autor:
Stephanie Mariela Varela-Fonseca, Camila Hernández-Murillo, Ernesto Montero-Zeledón, Dionisio Gutiérrez-Fallas, Roberto Urcuyo, Allen Puente-Urbina
Publikováno v:
Tecnología en Marcha, Vol 35, Iss 4 (2022)
Los alótropos de carbono han ganado interés en las últimas décadas debido a sus propiedades y a la gran variedad de posibles aplicaciones tecnológicas que han demostrado. Por dichas razones, la obtención de estos alótropos con diferentes propi
Externí odkaz:
https://doaj.org/article/f62a30b8eaaf4f8cad0a74b40e46f35c
Autor:
Allen Puente-Urbina
Publikováno v:
Tecnología en Marcha, Vol 35, Iss 7 (2022)
Las biomasas lignocelulósicas son materias primas con baja huella de carbono, útiles para la producción de energía, materiales y productos químicos, las cuales pueden provenir de diferentes fuentes, incluyendo actividades agroindustriales y plan
Externí odkaz:
https://doaj.org/article/9fe4b33def584496893c3ff99e0c4145
Autor:
Andrey Caballero-Chavarría, Maiby Patricia Rojas-Soto, Melissa María Villalobos-Barquero, Alexander Davis-Barquero, Carlos Roldan-Villalobos, Róger Moya, Allen Puente-Urbina
Publikováno v:
Tecnología en Marcha, Vol 32, Iss 4 (2019)
La gasificación es un proceso termoquímico en el que materias primas orgánicas se convierten en gases que contienen H2 y CO (gas de síntesis), los cuales pueden utilizarse para obtener productos como electricidad, combustibles y otras sustancias
Externí odkaz:
https://doaj.org/article/b719b9090504434e8d6411d40fd72d31
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
Publikováno v:
Energies, Vol 10, Iss 8, p 1205 (2017)
The purpose of the biomass torrefaction and pelletizing processes is to increase its energy properties, be environmentally friendly, decrease shipping costs, and make handling easier. The objective of the present work is to evaluate the density, inte
Externí odkaz:
https://doaj.org/article/cd9b5feaa0764eb8ba1c5571765e99bd
Publikováno v:
ChemSusChem, 15 (14)
Lignin is an abundant natural polymer obtained from lignocellulosic biomass and rich in aromatic substructures. When efficiently depolymerized, it has great potential in the production of value-added chemicals. Fast pyrolysis is a promising depolymer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6956e96ed2a405b56cf3cbb4dc0f5667
https://hdl.handle.net/20.500.11850/546226
https://hdl.handle.net/20.500.11850/546226
Publikováno v:
Journal of Chemical Education. 98:1583-1593
While several engineering and science disciplines, including biology and environmental science, have greatly benefited from adopting a systems thinking approach, its extension to chemistry education is a much more recent advancement. The initial body
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d23d90c8844957ff25beb9c2e470dac4
https://doi.org/10.1021/acs.jchemed.1c00005
https://doi.org/10.1021/acs.jchemed.1c00005
Publikováno v:
Chemical Science
Chemical Science, 12 (9)
Chemical Science, 12 (9)
The catalytic pyrolysis mechanism of the initial lignin depolymerization products will help us develop biomass valorization strategies. How does isomerism influence reactivity, product formation, selectivities, and side reactions? By using imaging ph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2dd448bc3b926f44e1751713ac0b181d
https://doi.org/10.1039/d1sc00654a
https://doi.org/10.1039/d1sc00654a