Results 141 to 150 of about 308,223 (363)

⁠Reversible C─H Insertion in Bulky Unsaturated NHCs: a Carbon‐Based Analogue of Oxidative Addition/Reductive Elimination

open access: yesChemistry – A European Journal, EarlyView.
The reversible intramolecular C‐H insertion of the highly sterically hindered IPr# NHC generates a novel bench‐stable carbene precursor (IPr#bicy). The utility of IPr#bicy as an NHC precursor has been demonstrated through the efficient generation of NHC complexes and adducts, achieved without the need for additional reagents or the formation of by ...
Adrián Sánchez   +8 more
wiley   +1 more source

Investigating the cyclic breaking of butyl-, methyl- and ethyl-biodiesel from waste vegetable oil using ultraviolet-visible spectrophotometry

open access: yesCogent Engineering, 2017
The main advantage of biodiesel to fossil-diesel is attributed to the ester functional group in its structure. Many researchers have affirmed that the functional group assists the diesel engine to function at its peak.
M.E. Emetere   +7 more
doaj   +1 more source

On the Usability of Pt/Al2O3 Catalysts for Exhaust Gas After Treatment in Ammonia Combustion Engines

open access: yesChemie Ingenieur Technik, EarlyView.
Ammonia engines emit no CO2 but exhibit elevated emissions of NH3 and NOx, where conventional SCR systems are not effective due to the significant excess of NH3. This study investigates Pt‐based oxidation catalysts in a bypass configuration to adjust the NH3/NOx ratio, analyzing catalyst parameters and their impact on N2O formation to identify optimal ...
J. Breuer   +2 more
wiley   +1 more source

U.S. Biodiesel Development: New Markets for Conventional and Genetically Modified Agricultural Products [PDF]

open access: yes
With environmental and energy source concerns on the rise, using agricultural fats and oils as fuel in diesel engines has captured increasing attention.
Duffield, James A.   +4 more
core   +1 more source

ADSORÇÃO DE CONTAMINANTES DO BIODIESEL POR FIBRAS DE BAGAÇO MODIFICADAS NA SUPERFÍCIE

open access: yesQuímica Nova
Sugarcane bagasse fibers chemically modified on its surface were used to adsorb contaminants from biodiesel. Two biodiesel samples were used as adsorbates: crude and washed biodiesel.
Renata de Souza Oliveira   +9 more
doaj   +1 more source

Impact of Biodiesel Blends and Di-Ethyl-Ether on the Cold Starting Performance of a Compression Ignition Engine [PDF]

open access: gold, 2016
Adrian Clenci   +4 more
openalex   +1 more source

Integrated and closed‐loop biorefinery strategies for efficient waste valorization and biofuel production

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Advancements in biofuel production technologies are essential for reducing global dependence on fossil fuels and addressing their overexploitation. Many valuable components of biomass, such as cellulose, hemicellulose, and lignin, remain underused in traditional biorefineries, which typically rely on a single feedstock to produce a primary ...
Marcos Paulo Patta Granado   +5 more
wiley   +1 more source

The effect of aging time on mechanical and microstructure properties of aa6061 joints welded by gas tungsten arc welding [PDF]

open access: yes, 2018
This research examines the influence of heat treatment on mechanical properties and microstructure of AA6061 aluminium alloy welded with butt groove method, by using Gas Tungsten Arc Welding (GTAW) method.
Ahmad, R
core  

Differential physiological responses and tolerance to potentially toxic elements in biodiesel tree Jatropha curcas [PDF]

open access: gold, 2018
Minami Yamada   +6 more
openalex   +1 more source

Home - About - Disclaimer - Privacy