Results 41 to 50 of about 38,938 (267)

Preparing a modified and promoted homogeneous titanium catalyst for ethylene dimerization to butene-1 [PDF]

Polyolefins Journal
Ethylene dimerization is a significant process among the other petrochemical processes due to the production of alpha olefins as the most widely used industrial intermediate.
Sajjad Bahrami Reyhan, Seyed Mahdi Alavi, Davood Soudbar   +2 more
doaj   +1 more source

Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading

Advanced Engineering Materials, EarlyView.
This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev, Noah‐Lean Roschlaub, Anne Jung   +2 more
wiley   +1 more source

Review and comparison of the methodology adopted for biodiesel production

Carbon Resources Conversion
Biodiesel is a versatile energy source synthesized by trans esterifying various edible or nonedible oils using catalysts. It is preferable to diesel because of its higher flash points, reduced sulphur content, and biodegradability. Biodiesel synthesis by
Milap G. Nayak
doaj   +1 more source

Synthesis of (Ind)2ZrCl2 Catalyst for Copolymerization of Ethylene and Propylene: Parameters Effect on Productivity [PDF]

علوم و تکنولوژی پلیمر, 2010
Bis(indenyl)zirconium dichloride as a catalyst was synthesized using a modified method at the room temperature. Polymerization of ethylene and copolymerization of ethylene and propylene were carried out by this metallocene catalyst. Ethylene propylene (P/
S. Ahmadjo, H. Arabi, M. Nekoomanesh, G.H. Zohuri, M. Mortazavi   +4 more
doaj   +1 more source

Superlubricity and Corrosion Inhibition Properties of Solvate Ionic Liquids in Hybrid Carbon Fiber Reinforced Plastic–Steel Interfaces

Advanced Engineering Materials, EarlyView.
Solvate ionic liquids lubrication reduced the coefficient of friction by ∼60% compared to dry sliding, reaching steady‐state values as low as 0.04–0.05. Corrosion weight‐loss measurements in 1 M HCl further demonstrated significant inhibition behavior, with only 100 ppm of [Li(G3)][TFSI] (∼68.5 μL/L) reducing corrosion‐product weight loss by 63 ...
Sameh Dabees, Timothy Harte, Bhagya Dharmasiri, Y. Athulya Wickramasingha, David J. Hayne, Daniel J. Eyckens, Luke C. Henderson   +6 more
wiley   +1 more source

Transient Operation of a Perovskite Partially Coated Monolith at High Pressure

Chemical Engineering Transactions, 2015
This work deals with the experimental study of transient ignition during high-pressure combustion of CH4- enriched syngas. The structured catalyst is a monolith where only the external channels are coated with 20 wt.
P. Barbato, V. Di Sarli, G. Landi, A. Di Benedetto   +3 more
doaj   +1 more source

Synthesis of biscoumarin derivatives by the reaction of aldehydes and 4-hydroxycoumarin using ruthenium (III) chloride hydrate as a versatile homogeneous catalyst [PDF]

Journal of the Serbian Chemical Society, 2012
The one-pot domino Knoevenagel-type condensation/Michael reaction of aromatic, heteroaromatic and aliphatic aldehydes with 4-hydroxycoumarin in aqueous media in the presence of ruthenium salt as homogeneous catalyst was investigated. It was found that
Tabatabaeian Khalil, Heidari Hannaneh, Khorshidi Alireza, Mamaghani Manouchehr, Mahmoodi Nosrat O.   +4 more
doaj   +1 more source

Catalytic evaluation of citrate-stabilized palladium nanoparticles in the Sonogashira reaction for the synthesis of 1,4-Bis[(trimethylsilyl)ethynyl]benzene

Catalysis Communications, 2021
Citrate-stabilized palladium nanoparticles were synthesized and supported on silica spheres. Conditions affecting particle size, stability and adsorption on silica particles are explored.
Erick Gálvez-Martínez, Andrés Aguilar-Granda, Braulio Rodríguez-Molina, Catalina Haro-Pérez, Anna Kozina   +4 more
doaj   +1 more source

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

Advanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

Process intensification for continuous synthesis of performic acid using Corning advanced-flow reactors

Green Processing and Synthesis, 2017
The present paper reports the experimental details for the synthesis of performic acid (PFA) using Corning advanced-flow reactors (AFRs) using formic acid and H2O2 as reactants, and sulfuric acid as homogeneous catalyst. The effect of different operating
Gaikwad Shekar M., Jolhe Prashant D., Bhanvase Bharat A., Kulkarni Abhijeet, Patil Vilas S., Pimplapure Makarand S., Suranani Srinath, Potoroko Irina, Sonawane Shirish H., Sonawane Shriram S.   +9 more
doaj   +1 more source