Results 51 to 60 of about 22,628 (224)

Nachhaltige Ammoniak‐Elektrosynthese Gekoppelt mit Glycerin‐Valorisierung Mittels Eines Adaptiven Dreikomponenten‐Katalysators

open access: yesAngewandte Chemie, EarlyView.
Ein Cu‐Ni‐W‐Dreikomponenten‐Katalysator ermöglicht eine effiziente Umwandlung von Nitrat zu Ammoniak unter gepulster Elektrolyse. Kombinierte experimentelle und theoretische Studien führen seine Leistungsfähigkeit auf die Synergie der Komponenten und regulierte Zwischenprodukte zurück.
Christean Nickel   +14 more
wiley   +1 more source

Uso da cromatografia gasosa bidimensional abrangente (GC×GC) na caracterização de misturas biodiesel/diesel: aplicação ao biodiesel de sebo bovino

open access: yesQuímica Nova, 2011
The growth of biodiesel market and the implementation of regulations related to biodiesel production and biodiesel/diesel blending has encouraged the development of appropriate analytical methods to control the composition of this type of mixture.
Maria Silvana A Moraes   +5 more
doaj   +1 more source

ANALYSIS OF THE PHYSICAL CHARACTERISTICS OF BIODIESEL PRODUCTS MADE FROM USED COOKING OIL

open access: yesJurnal Neutrino: Jurnal Fisika dan Aplikasinya, 2022
Biodiesel is a very potential material used as a substitute for diesel fuel derived from petroleum. In manufacture of biodiesel was used waste cooking oil with FFA levels obtained which is 3.1%, so that the transesterification process is directly carried
Gina Fikria, Cecep Rustana
doaj   +1 more source

Obtención de biodiesel a partir de aceite vegetal reciclado a través de un reactor industrial capacidad 55 galones en el hogar de proteción infantil casa Bernabé comarca Veracruz municipio de Nindirí Marzo-Diciembre del año 2014 [PDF]

open access: yes, 2015
Realizado el estudio experimental en el cual se efectuaron pruebas piloto en los laboratorios de Química de la Universidad Nacional Autónoma de Nicaragua (UNAN- Managua) luego se desarrolló el proceso de obtención de biodiesel haciendo uso de un reactor ...
Beltrán Orozco, Mary Luz   +1 more
core  

Sustainable Ammonia Electrosynthesis Coupled With Glycerol Valorization via an Adaptive Tri‐Component Catalyst

open access: yesAngewandte Chemie International Edition, EarlyView.
A Cu‐Ni‐W tri‐component catalyst enables efficient nitrate‐to‐ammonia conversion under pulsed electrolysis. Combined experimental and theoretical studies attribute its performance to component synergism and regulated intermediates. Its facile adaptation for glycerol valorization to formic acid underscores a versatile system design concept, advancing ...
Christean Nickel   +14 more
wiley   +1 more source

El reto energético y su impacto sobre el sector agrario [PDF]

open access: yes, 2009
El modelo agrario europeo, de carácter familiar/ multifuncional, es incompatible con la expansión productiva que requiere atender a la doble demanda de materias primas para alimentación y para biocarburantes, al tiempo que se liberaliza el comercio ...
Tió Saralegui, Carlos
core   +2 more sources

Ultrafast Biodiesel Synthesis via K2CO3‐Supported Mg‐Al Hydrotalcite Catalyst With Tailored Basicity and Mesoporous Structure

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT With the increasing global energy demand and the growing prominence of environmental issues, biodiesel has garnered significant attention as a renewable, low‐emission green energy source. Conventional hydrotalcite‐based catalysts often suffer from insufficient basicity and limited accessibility of active sites, leading to relatively long ...
Jingdi Zheng   +4 more
wiley   +1 more source

Análisis de las cadenas de suministro de bio-etanol y biodiesel en México: Estudio de caso

open access: yesNova Scientia, 2018
El trabajo identificó y analizó el estado actual de los principales actores que intervienen en las cadenas de suministro de biocombustibles líquidos en el sureste de México.
José Alfredo Rosas Barajas   +6 more
doaj  

Combustion and Emission Reduction Characteristics of GTL-Biodiesel Fuel in a Single-Cylinder Diesel Engine

open access: yesEnergies, 2019
The purpose of this paper is to investigate the effects of using gas to liquid (GTL)-biodiesel blends as an alternative fuel on the physical properties as well as the combustion and emission reduction characteristics in a diesel engine.
Kibong Choi   +3 more
doaj   +1 more source

Actividad económica, consumo final de energía y requerimientos de energía primaria en Cataluña, 1990-2005. Análisis mediante el uso de los balances energéticos desde una perspectiva input-output [PDF]

open access: yes, 2007
Este trabajo analiza la evolución de los consumos finales de energía en Cataluña durante el periodo 1990-2005. En conjunto, los consumos finales de energía crecen por encima del crecimiento del PIB en términos reales.
Alcántara, Vicent   +3 more
core  

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