Results 31 to 40 of about 17,159 (218)

Dynamic Covalent Networks of Molecular Clusters for Hard and Impact‐Resistant Glass with Feasible Processability

Advanced Science, EarlyView.
Molecular granular material glass is fabricated by crosslinking sub‐nm POSS clusters with dynamic borate ester bonding while the materials combine high transparency, modulus, and hardness with superior impact resistance and (re)processability, offering a promising strategy for creating robust yet highly processable organic glasses.
Haiyan Xiao, Jia‐Fu Yin, Linjie Lan, Wei Liu‐Fu, Panchao Yin   +4 more
wiley   +1 more source

Penggunaan Ultrasonik untuk Transesterifikasi Minyak Goreng Bekas

Jurnal Rekayasa Kimia & Lingkungan, 2011
In this work, the ultrasound-assisted transesterification of used frying oil (UFO) was studied. A two-step pretreatment of degumming and esterification was conducted to prepare UFO as raw material for transesterification.
Muhammad Dani Supardan
doaj   +2 more sources

Supercritical Methanol Transesterification for Simultaneous Biodiesel Production Based on Cir-ULIF-MABAC-TOPSIS Model with Hamacher Norms

Energy Nexus
Supercritical methanol transesterification is a well-established and efficient process that produces biodiesel by reacting methanol with triglycerides under extreme temperature and pressure conditions.
Hamza Zafar, Zeeshan Ali, Bo Hsiao, Sarbast Moslem, Tapan Senapati   +4 more
doaj   +1 more source

Production of Biodiesel from Chicken Frying Oil [PDF]

Pakistan Journal of Analytical & Environmental Chemistry, 2011
Chicken fried oil was converted into different biodiesels through single step transesterification and two step transesterification, namely acid-base and base–base catalyzed transesterification. Hydrochloric acid and potassium hydroxide with methanol were
Emaad T. Bakir, Abdelrahman B. Fadhil
doaj  

Comparison of three methods for rendering plant fat transesterification

Research in Agricultural Engineering, 2013
Three most frequently used methods for fat transesterification were compared using rendering plant fat (RPF) as model. Acid-catalysed transesterification was found to be the most effective (conversion 90%) at optimum conditions (fat: methanol ratio 1:10,
A. Prošková, J. Kučera, Z. Kopicová, L. Škarková   +3 more
doaj   +1 more source

Influence of n-Hexane on in Situ Transesterification of Marine Macroalgae

Energies, 2012
The purpose of this work is to investigate the influence of n-hexane addition on in situ transesterification of a solid raw material for biodiesel production.
Angel Sánchez, Rocio Maceiras, Angeles Cancela, Mónica Rodríguez   +3 more
doaj   +1 more source

Evaluation and optimisation of direct transesterification methods for the assessment of lipid accumulation in oleaginous filamentous fungi

Microbial Cell Factories, 2021
Background Oleaginous filamentous fungi can accumulate large amount of cellular lipids and potentially serve as a major source of oleochemicals for food, feed, chemical, pharmaceutical, and transport industries.
Anne Marie Langseter, Simona Dzurendova, Volha Shapaval, Achim Kohler, Dag Ekeberg, Boris Zimmermann   +5 more
doaj   +1 more source

Comparative effects of biomass pre-treatments for direct and indirect transesterification to enhance microalgal lipid recovery

Frontiers in Energy Research, 2014
Microalgal lipid recovery for biodiesel production is currently considered suboptimal, but pre-treatment of algal biomass, the use of solvent mixtures and the positioning of transesterification can lead to increased yields.
Forough eGhasemi Naghdi, Skye R Thomas-Hall, Reuben eDurairatnam, Steven ePratt, Peer M Schenk   +4 more
doaj   +1 more source

MOFs as New Catalytic Platform for Covalent Adaptable Networks: Catalysis Meets Reinforcement

Angewandte Chemie International Edition, EarlyView.
A novel heterogeneous catalytic platform for covalent adaptable networks (CANs) is introduced by immobilizing bases of low molecular weight on metal‐organic frameworks (MOFs). The obtained catalyst UiO‐TBD benefits from the high loading capacity of the MOF and demonstrates a higher thermal stability relative to free TBD.
Simon Renner, Roman Korotkov, Inge Mühlbacher, Markus Alfreider, Daniel Kiener, Johannes Liebhart, Oskar Paris, Christian Slugovc, Sandra Schlögl, Elisabeth Rossegger   +9 more
wiley   +1 more source

A Full Factorial Analysis on One-Way Transient Transesterification Interactions Affecting Palm Biodiesel for Batch Reactor

Chemical Engineering Transactions, 2019
Biodiesel is commonly produced via the transesterification process, usually through the use of batch type reactor. There are significant gaps in batch reactor technologies, where the importance of these factors are often concluded based on the steady ...
Kang Yao Wong, Jo-Han Ng, Cheng Tung Chong   +2 more
doaj   +1 more source