Results 41 to 50 of about 17,691 (234)

Characterization of Biodiesel Produced from the Transesterification of RPO (Refined Palm Oil) and Recycled Methanol Using an NaOH Catalyst

Berkala Sainstek
The transesterification reaction used in biodiesel production is reversible; thus, several approaches are required to achieve a high product yield.
Elvianto Dwi Daryono, Jimmy
doaj   +1 more source

Biodiesel Hasil Transesterifikasi Minyak Biji Nyamplung (Calophyllum inophyllum) Dengan Metanol

Indonesian Journal of Chemical Research, 2017
Study of the transesterification of Calophyllum innophyllum seed oil from Kendari with methanol has been conducted. The purpose of the research to determine of the yield of ester produced in transesterification process with methanol, the viscosity of ...
Rustam Musta, Aceng Haetami, Mimi Salmawati   +2 more
doaj   +1 more source

Alkali‐Catalyzed Synthesis of Acylglycerol Estolides Exclusively from Castor Oil

Journal of the American Oil Chemists' Society, EarlyView.
This work advances sustainable chemistry by converting renewable castor oil into high‐performance estolides via solvent‐free, low‐energy catalysis. ABSTRACT Estolides are oligomers composed of fatty acid (FA) monomers linked through secondary ester bonds located along the mid‐chain region.
Lucas Natã de Melo, Simoni Margareti Plentz Meneghetti, Mario Roberto Meneghetti, Janaína Heberle Bortoluzzi   +3 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

Microwave‐Assisted Alcoholysis of Ethylene–Vinyl Acetate: Phenomenological and Thermal Evolution of EVAOH Terpolymers

Journal of Applied Polymer Science, EarlyView.
Microwave‐assisted alcoholysis converts EVA into EVAOH terpolymers, promoting a progressive transition from EVA‐like crystallites to VOH‐rich hydrogen‐bonded crystalline domains. Solvent‐controlled swelling influences conversion kinetics, while thermal analysis reveals a sigmoidal increase in melting temperature that a two‐population crystallization ...
Fernanda Trindade Gonzalez Dias, Aline Benittes dos Santos, Lucas Dall Agnol, Otávio Bianchi   +3 more
wiley   +1 more source

Inverse Vulcanized Sulfur Polymer Composites From Poultry‐Industry Products and Lignocellulosic Biomass Waste

Journal of Applied Polymer Science, EarlyView.
This work explores the use of various fillers, including eggshell powder, feather meal, peanut hulls, and sawdust to reinforce a base binder GFS90 (comprised of 90 wt.% sulfur, 5 wt.% chicken fat, and 5 wt.% sunflower oil). The resulting composites showed impressive compressive strengths ranging from 15.3 to 36.2 MPa, making them a potential ...
Bárbara G. S. Guinati, Katelyn A. Tisdale, Rashmi N. Jayasinghe, Nicholas B. Ames, Ashlyn D. Smith, Rhett C. Smith   +5 more
wiley   +1 more source

Penggunaan Katalis NaOH dalam Proses Transesterifikasi Minyak Kemiri menjadi Biodiesel

Jurnal Rekayasa Kimia & Lingkungan, 2011
Research on biodiesel production from hazelnut oil by transesterification process using NaOH catalyst was one of the efforts for renewable energy research.
Farid Mulana
doaj   +2 more sources

Methyl Esters Selectivity of Transesterification Reaction with Homogenous Alkaline Catalyst to Produce Biodiesel in Batch, Plug Flow, and Continuous Stirred Tank Reactors

International Journal of Chemical Engineering, 2014
Selectivity concept is essential in establishing the best operating conditions for attaining maximum production of the desired product. For complex reaction such as biodiesel fuel synthesis, kinetic studies of transesterification reaction have revealed ...
N. F. Nasir, W. R. W. Daud, S. K. Kamarudin, Z. Yaakob   +3 more
doaj   +1 more source

Effect of Free Fatty Acid Pretreatment to Yield, Composition and Activation Energy in Chemical Synthesis of Fatty Acid Methyl Ester

Indonesian Journal of Chemistry, 2019
Transesterification of waste cooking oil (WCO) for fatty acid methyl ester synthesis using calcium oxide (CaO) as a catalyst with absence and presence of free fatty acid (FFA) pretreatment (untreated and pretreated) prior to reaction have been ...
Nor Saadah Mohd Alias, Harumi Veny, Fazlena Hamzah, Noorhaliza Aziz   +3 more
doaj   +1 more source

Improving the Mechanical Properties of Biodegradable Polyhydroxyalkanoates via PHA–PHA Block‐Copolymer Synthesis

Chemistry – A European Journal, EarlyView.
Covalent linkage of a highly crystalline PHBV with a ductile P3HB4HB is shown to produce block copolymers with markedly enhanced extensibility and toughness, outperforming equivalent blends. The results demonstrate that polymer architecture, not composition alone, governs mechanical response, offering a route to biodegradable materials that combine ...
Katrin Blandine Kockler, Paul Lant, Steven Pratt, Bronwyn Laycock   +3 more
wiley   +1 more source