Results 11 to 20 of about 17,159 (218)

Variability of Omega-3/6 Fatty Acid Obtained Through Extraction-Transesterification Processes from Phaeodactylum tricornutum

open access: yesActa Chimica Slovenica, 2021
The effect of direct transesterification methods on the omega-3/6 composition of extracts from Phaeodactylum tricornutum was studied. The aim of this work was to identify an extraction method which allowed to obtain the most suitable profile of fatty ...
Mari Carmen Ruiz-Dominguez   +6 more
doaj   +1 more source

Advances in Biodiesel Production from Microalgae

open access: yesEnergies, 2023
Biofuels, as a renewable, eco-friendly, and cost-effective energy source, can reduce the dependence on fossil fuels. The researchers considered different approaches for obtaining high biodiesel yields from microalgae biomass. This work aims to present an
Emilia Neag   +3 more
doaj   +1 more source

Acid catalysed transesterification of animal waste fat

open access: yesResearch in Agricultural Engineering, 2009
Rendering plant fat (RPF) was collected and different conditions were used for transesterification. The course of transesterification of RPF was compared with that of transesterification of lard under the same conditions.
A. Prošková   +3 more
doaj   +1 more source

Microfluid on Chip Transesterification Reaction and Real-Time Monitor by PN Diode Photodetector

open access: yesInternational Journal of Electrochemical Science, 2012
Biodiesel is a renewable fuel made by a chemical reaction of alcohol and vegetable or animal oils, fats, or greases. Through a refinery process called transesterification.
Chun-Chi Chen   +4 more
doaj   +1 more source

Minyak Biji Nyamplung (Calophyllum inophyllum) Dengan Etanol

open access: yesIndonesian Journal of Chemical Research, 2017
A study has been conducted on the transesterification of Calophyllum innophyllum seed oil with ethanol. The purpose of this research is to determine the comparison of concentration of phosphoric acid used to remove the gum on the oil, ester content is ...
Rezki Rezki, Rustam Musta, Aceng Haetami
doaj   +1 more source

ANALYSIS OF FREE FATTY ACID ON SOYBEAN OIL USING GAS CHROMATOGRAPHY – MASS SPECTROSCOPY

open access: yesIndonesian Journal of Chemistry, 2010
Research on transesterification of soybean oil with sodium methoxide as the catalyst in methanol has been conducted. Yields of transesterification reaction were analyzed by gas chromatography-mass spectroscopy (GC-MS).
Deni Pranowo, M Muchalal
doaj   +1 more source

Bentonite functioned by potassium compounds as a solid catalyst for biodiesel production [PDF]

open access: yesREM: International Engineering Journal, 2023
Heterogeneous catalysts, especially those produced with functionalized clays, can be used for methyl transesterification at moderate temperatures. The use of bentonite clay functionalized by potassium compounds (KF, KOH, K2CO3, KCl and K2SO4) in the ...
Jonei Marques da Costa   +1 more
doaj   +1 more source

Rapid and Stereoselective Ring‐Opening Polymerization of rac‐Lactide Enabled by a Chiral Cyclopropenimine–Thiourea Catalyst

open access: yesAngewandte Chemie, EarlyView.
Chiral cyclopropenimine–thiourea organocatalysts enabled both high reactivity and precise stereocontrol in the ring‐opening polymerization of rac‐lactide. The bifunctional system exhibited a TOF up to 1,710 h−1 with Pm = 0.90 at 25°C, and achieved Pm = 0.99 at −78°C while maintaining a TOF of 16.3 h−1.
Sumin Lee   +8 more
wiley   +2 more sources

Depolymerization and Reuse of Polycarbonates: Emerging Classes, Mechanisms and Challenges

open access: yesAngewandte Chemie, EarlyView.
This review collects the latest developments in the area of chemical and catalytic polycarbonate recycling strategies and includes the controlled degradation of similar types of macromolecules. Apart from the main strategies for deconstruction, the key mechanistic features of these depolymerization processes are also discussed together with the ...
Davide Rigo   +4 more
wiley   +2 more sources

The synthesis of biodiesel from palm oil and waste cooking oil via electrolysis by various electrodes

open access: yesCase Studies in Chemical and Environmental Engineering, 2023
The influence of various electrodes used in the synthesis of biodiesel from palm oil and waste cooking oil via electrolysis processes was studied. The results revealed that electro-catalysts introduced to the transesterification of palm oil and waste ...
Darwin   +5 more
doaj   +1 more source

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