Listar Ingeniería Química - (IQ) por título
Mostrando ítems 75-94 de 227
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Efecto del H3PO4 en la preparación de fibras de carbono a partir de lignina. Mejoras en el proceso de estabilización y propiedades finales
(2015-11-06)El presente trabajo propone un nuevo método de preparación de fibras de carbono mediante electrohilado de mezclas de lignina/H3PO4, en el que se obtienen resultados que aceleran el proceso de preparación de estos materiales ... -
Effect of heating rate and H3PO4 as catalyst on the pyrolysis of agricultural residues
(Elsevier, 2022-11)This study reports the effect of heating rate and the addition of H3PO4 on the pyrolysis of three representative agricultural wastes of different lignocellulosic composition, namely pistachio shell, bitter orange peel, and ... -
Effect of hydroxylammonium chloride as a reductant for hydrochloric acid leaching of valuable metals from discarded lithium-ion batteries
(Elsevier, 2024-06)The use of hydroxylammonium chloride as a reducing agent is proposed to enhance the acid leaching of cathode material from spent lithium-ion batteries. The current study was conducted using real waste from scooter ... -
Effect of NaHCO3 addition on the anaerobic co-digestion of fruit and vegetable waste and sewage sludge performance
(2013-11-08)Digestion of FVW residues with sewage sludge is feasible as long as the FVW to sludge ratio fed to the batch digester is not too large. The pH is the main variable determining the reactor performance and ... -
Effect of Nb as dopant of hydrotalcite catalysts during the ethanol condensation to optimize n-Butanol production
(Elsevier, 2024)The present study optimizes Cu-supported catalysts on hydrotalcite for the synthesis of n-butanol whose interest is in its use as biofuel, due to its superior performance in comparison with other short-chain alcohols. ... -
Effect of phosphorous groups on the stabilization and activation of low-cost lignin fibers prepared by electrospinning
(2013-11-25)The feasible wider use of carbon fibers in many of their current and potential applications demands a reduction of their manufacturing costs. In this sense, the use of lignin as an abundant, renewable and low-cost carbonaceous ... -
Effect of the feed procedure on production of biogas from anaerobic digestion of pear residues using a CSTR Digester
(2014-10-30)The anaerobic digestion for the production of biogas is one of the best alternative management procedures of the fruits and vegetables wastes (FWV) since it simultaneously allows energy recovery and material recycling if ... -
Effectiveness of conventional drinking water treatment in the removal of polycyclic aromatic hydrocarbons
(2020-09-23)The presence of recalcitrant organic pollutants, such as polycyclic aromatic hydrocarbons (PAHs) in aquatic environments poses a threat to the human health. According to recent studies, PAHs, such as benz[a]anthracene and ... -
Efficient methanol dehydration to DME and light hydrocarbons by submicrometric ZrO2-ZSM-5 fibrillar catalysts with a shell-like structure
(Elsevier, 2022-01-20)Zeolites are widely used in many applications, such as catalysis and adsorption processes. The use of these materials in a nanometric size would be of great interest for these applications, due to the better performance ... -
Electrochemical behavior of pt- a d pd-supported activated carbons with different functionalities
(2014-07-28)Due to their relatively low price, high surface area and versatile physic-chemical properties, conductive carbon materials are considered among the most promising supports of electroactive species and/or catalysts for ... -
Electrodialytic processes in solid matrices. New insights into batteries recycling. A review.
(2019-02-26)Electrodialytic Remediation has been widely applied to the recovery of different contaminants from numerous solid matrices solving emerging issues of environmental concern. Results and conclusions reported in studies about ... -
Electrodialytic Recovery of Cobalt from Spent Lithium-Ion Batteries
(2019-02-08)Recycling lithium-ion batteries has an increasing interest for economic and environmental reasons. Disposal of lithium-ion batteries imposes high risk to the environment due to the toxicity of some of their essential ... -
Electrodialytic Treatment of Secondary Batteries Cathodes
(2019-10-07)The interest for reusing and recycling secondary batteries is increasing, driven by both economic and environmental reasons. Lithium-ion batteries are among the main energy storage devices more popular in portable electronic ... -
Electrospinning of alcell lignin for the preparation of ORR electrocatalysts
(2019-10-28)Carbon fibers are one of the components of the electrode assemblies used in fuel cells. They are usually prepared from polyacrylonitrile, a non-renewable synthetic polymer. Lignin is a highly abundant biopolymer that is ... -
Electrospun CuO/ZnO/ZrO2-ZSM-5 fibrillar bifunctional catalysts for the direct DME synthesis
(2019-06-28)A straightforward method for the preparation of CuO/ZnO/ZrO2-ZSM-5 fibrillar bifunctional catalysts, by using the electrospinning technique. The prepared fibers presented a high aspect ratio and a fairly good copper ... -
Electrospun Functional Nanofibers for Antimicrobial Applications in Air Filtration and Wound Dressing
(UMA Editorial, 2023)The design of several materials with functional properties was suitably obtained, combining some of them, the electrospray and electrospinning technique, and giving better antibacterial and filtering properties. The synthesis ... -
Electrospun iron-containing sustainable carbon submicron fibers as Fischer-Tropsch catalyst
(2023)The problems derived from fossil fuels usage such as climate change and energy crises have led to seek for alternatives. Biomass is a renewable source which can be used to produce fuels and olefins via Fischer-Tropsch from ... -
Estudio cinético de la desactivación de un catalizador de zirconio y fósforo sobre carbón activado en la reacción de metanol a dimetileter
(2022-04-27)El dimetil éter es un sustituto del diésel que puede producirse de forma sostenible mediante deshidratación de metanol obtenido por gasificación de biomasa. Los catalizadores usados en este proceso sufren una desactivación ... -
Estudio cinético de la oxidación de carbón activado con ácido fosfórico
(2022-04-27)La activación con H3PO4 genera en los carbones activos resultantes, grupos superficiales de fósforo muy estables química y térmicamente. Estos grupos confieren al carbón activo cierta resistencia a la oxidación. Debido al ... -
Estudio cinético de la producción de hidrógeno mediante gasificación con vapor de agua de carbonizados de origen lignocelulósico.
(2023)La principal fuente de hidrógeno es el reformado húmedo de gas natural y otros recursos fósiles. Debido a la escasez de estos recursos, sus altos costes y los problemas medioambientales causados por su uso, es importante ...