Zobrazeno 1 - 10
of 306
pro vyhledávání: '"MARIA DO CARMO RANGEL"'
Autor:
Mateus da Silva Carvalho, Francieli Martins Mayer, Ana Paula Stelzer de Oliveira, Doris Ruiz, Cesário Francisco das Virgens, Maria do Carmo Rangel
Publikováno v:
Biomass, Vol 3, Iss 3, Pp 279-290 (2023)
Catalytic pyrolysis is an attractive alternative for converting biomass into energy and chemicals, replacing fossil sources. Efficient catalysts can be used to remove compounds containing oxygen during pyrolysis, improving the bio-oil properties and
Externí odkaz:
https://doaj.org/article/49ee1938c0eb4ea0b4779d1e73a4679d
Autor:
Maria do Carmo Rangel, Francieli Martins Mayer, Mateus da Silva Carvalho, Giovanni Saboia, Arthur Motta de Andrade
Publikováno v:
Biomass, Vol 3, Iss 1, Pp 31-63 (2023)
The pyrolysis of lignocellulosic biomass is a promising technology for obtaining renewable chemicals and fuels to replace fossil-based products. However, due to the complexity of the lignin, cellulose and hemicellulose molecules, a large variety of c
Externí odkaz:
https://doaj.org/article/b3bc16590aac45d38910360c6adf7d98
Publikováno v:
Dyna, Vol 86, Iss 210, Pp 58-65 (2019)
NiO has a variety of applications, mainly in the production of electrochemical sensors and of metallic nickel. In addition, it is widely used as catalysts to produce hydrogen from natural gas. In this work, hydrotalcites based on nickel-aluminum and
Externí odkaz:
https://doaj.org/article/e212c667a88c49c5bd8cca49fec8d32e
Publikováno v:
Revista de Investigaciones Universidad del Quindío, Vol 24, Iss 1, Pp 91-99 (2013)
La producción de hidrogeno es de vital importancia para diversos procesos industriales y en este contexto la reacción WGS es de gran utilidad para conseguir altos valores de pureza de este elemento, especialmente por su reciente uso en la obtenció
Externí odkaz:
https://doaj.org/article/97a4291d5c174c7d8cb17197e2276e9f
Publikováno v:
Química Nova, Vol 36, Iss 1, Pp 131-142 (2013)
This review presents the main characteristics and properties of microporous (zeolites) and ordered mesoporous materials, focusing on structural aspects and preparation. In addition, their use as heterogeneous catalysts are also discussed, with emphas
Externí odkaz:
https://doaj.org/article/78b0c211038f4d10a5f590aff33a777c
Publikováno v:
Química Nova, Vol 36, Iss 1, Pp 131-142 (2013)
This review presents the main characteristics and properties of microporous (zeolites) and ordered mesoporous materials, focusing on structural aspects and preparation. In addition, their use as heterogeneous catalysts are also discussed, with emphas
Externí odkaz:
https://doaj.org/article/2b3db9aa0821425f8f35b9ae880b8ecf
Publikováno v:
Química Nova, Vol 32, Iss 8, Pp 2133-2141 (2009)
Porous carbons have received great attention because of their potential use as adsorbents, sensors, catalytic supports and others. Among the available methods for preparing these solids, the sequential templating emerges as an efficient way to tail c
Externí odkaz:
https://doaj.org/article/557137d2663b4ade96b5a40305e534a9
Publikováno v:
Química Nova, Vol 32, Iss 7, Pp 1860-1870 (2009)
In recent years nanomaterials, such as metallic nanoparticles, nanowires, nanotapes, nanotubes and nanocomposites, have attracted increasing interest for several technological applications. In catalysis, the great potential of nanomaterials is relate
Externí odkaz:
https://doaj.org/article/6c3af653660b45b5981c3ad013de59cf
Publikováno v:
Química Nova, Vol 31, Iss 1, Pp 114-122 (2008)
In an effort to minimize the impact on the environment, removal of pollutants, such as phenolic compounds, from the industrial wastewater has great importance nowadays because of the high toxicity and low biodegradability of these compounds. This wor
Externí odkaz:
https://doaj.org/article/ff63d030a8bd4aa888c828c147cb41a0
Autor:
Hadma Sousa Ferreira, Soraia Jesus Oliveira, Maria do Carmo Rangel, Ernesto A. Urquieta-González, Leandro Martins, José Luís Garcia Fierro, Sérgio G. Marchetti
Publikováno v:
Química Nova, Vol 30, Iss 3, Pp 611-615 (2007)
The activity of copper-doped hematite in the SCR with propane, in the presence of oxygen, was evaluated in this work. It was found that copper sulfate led to the production of solids with different specific surface areas depending on the amount of co
Externí odkaz:
https://doaj.org/article/dadc4038222644e09f308dca43f701dc