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Synthesis and characterisation of a silicon oxide film solid-phase extraction system for lead traces determination: an all the way green analytical method
(Taylor & Francis, 2011-08)
In this work, an all the way green analytical procedure based on a silicon oxide film-solid phase extraction system is proposed for lead traces determination. From the synthesis of a solid phase extraction (SPE) system and ...
Preparação e caracterização de biocatalisadores heterogêneos para a produção de biolubrificante
(Universidade Federal de Minas GeraisBrasilENG - DEPARTAMENTO DE ENGENHARIA QUÍMICAPrograma de Pós-Graduação em Engenharia QuímicaUFMG, 2020-10-16)
In recent years, biolubricants have been gaining prominence in comparison with conventional petroleum-based lubricants. This trend is observed in almost all sectors relying on these products, regardless of their applications. ...
Removal Of Silver Ions On Calcined Verde-lodo Bentonite Clay: Equilibrium Study
(Italian Association of Chemical Engineering - AIDIC, 2014)
Study of the Nature and Location of Silver in Ag-Exchanged Mordenite Catalysts. Characterization by Spectroscopic Techniques
(American Chemical Society, 2013-11)
Catalysts based on Na-mordenite (symbolized as M) exchanged with 5, 10, and 15 wt % of Ag were characterized by X-ray photoelectron spectroscopy (XPS), extended X-ray absorption fine line structure (EXAFS), X-ray absorption ...
Desativação e regeneração de catalisadores zeolíticos (HY E HZSM-5) utilizados em craqueamento catalítico fluidizado (FCC)
(Universidade Federal do Rio Grande do NorteBrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM CIÊNCIA E ENGENHARIA DE PETRÓLEO, 2015-03-10)
The use of catalysts is of fundamental importance to the oil industry, given that
they reduce the time and energy required for a reaction to take place, improving
efficiency and product quality. In return they end up ...
Utilização de esferas de alginato para extração e pré-concentração de chumbo em amostras de água
(Universidade Tecnológica Federal do ParanáDois VizinhosPonta GrossaBrasilPrograma de Pós-Graduação em BiotecnologiaUTFPR, 2020-02-21)
Lead (Pb) is a toxic element and a potential contaminants in aquatic environments. World Health Organization (WHO) establishes a maximum limit of 10 µg L-1 of Pb in drinking water. The determination of Pb, in trace levels ...
Estudio de la adsorción y desorción de pares adsorbente / adsorbato para sistemas de enfriamiento utilizando fuentes renovables de energía.
(Universidad Católica de Santiago de Guayaquil, 2021)
Desulfurization of FCC Gasoline: Novel Catalytic Processes with Zeolites
(Berkeley Electronic Press, 2008-01)
New regulations aim to achieve a drastic sulfur emission reduction in fuels and impose very low sulfur concentration caps (30 ppm in gasoline and 15 ppm in diesel) that will be in full force in 2009. FCC gasoline represents ...