Results 31 to 40 of about 40,793 (278)

Transesterification of Vegetables oil using Sub-and Supercritical Methanol [PDF]

open access: yes, 2012
A benign process, non catalytic transesterification in sub and supercritical methanol method was used to prepare biodiesel from vegetables oil. The experiment was carried out in batch type reactor (8.8 ml capacity, stainless steel, AKICO, JAPAN) by ...
W, Wahyudiono   +7 more
core   +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

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

The study of heterogeneous catalysts for biodiesel synthesis [PDF]

open access: yes
A study in search of new heterogeneous catalysts that can be used in place of homogeneous catalysts for biodiesel synthesis has been carried out.
Andrijanto, Eko
core   +3 more sources

Noncanonical Peloruside A Biosynthesis by an Uncultivated Verrucomicrobiota Symbiont

open access: yesAngewandte Chemie, EarlyView.
Noncanonical biochemistry of the peloruside PKS characterized in this work, comprising double bond generation by a noncanonical tridomain (blue), acetyl‐CoA recycling (orange), and proofreading systems (purple and yellow). The Z‐double bond is installed by TEB1 through O‐acetylation and acetate elimination. The acyl ligase PelB (AL, orange) selectively
Amy E. Fraley   +11 more
wiley   +2 more sources

Fatty acid methyl esters yield and phorbol esters degradation during transesterification of Jatropha curcas oil by alkaline, acid and enzyme catalyzed method

open access: yesRenewable Energy and Environmental Sustainability, 2017
Jatropha curcas has recently been the focus of intense research as a raw material of biomass fuel. However, the carcinogenesis promoter action of the phorbol esters in the Jatropha raises concerns for health and environmental risk.
Tosa Koji, Ishizuka Tomoki
doaj   +1 more source

Synergistic Action of Rhizopus oryzae Lipase and Fusarium oxysporum Cutinase in the Enzymatic Transesterification of a High-Free Fatty Acid Oil. [PDF]

open access: yesChembiochem
A bienzymatic system of Rhizopus oryzae lipase and Fusarium oxysporum cutinase was optimized for the transesterification of high‐free fatty acid waste oil into biodiesel. Synergistic enzyme action, immobilization‐enabled reusability, and successful 100 mL scale‐up highlight the industrial potential of the suggested biocatalytic approach.
Spanou A   +3 more
europepmc   +2 more sources

Process intensification approach for design and optimization of biodiesel production from palm fatty acid distillate

open access: yesBiotechnology Reports, 2021
Design of the biodiesel production from palm fatty acid distillate (PFAD) using process intensification approach is studied in technical, economic and environmental view points.
Karittha Im-orb   +2 more
doaj   +1 more source

Alkali-Free Hydrothermally Reconstructed NiAl Layered Double Hydroxides for Catalytic Transesterification [PDF]

open access: yes, 2022
NiAl layered double hydroxides (LDHs) are promising bifunctional catalysts comprising tunable redox and Lewis acidic sites. However, most studies of NiAl LDH employ alkali hydroxide carbonate precipitants which may contaminate the final LDH catalyst and ...
Karen Wilson   +10 more
core   +1 more source

Ruthenium‐Catalyzed Nitrile‐Acrylate Reductive Coupling by 2‐Propanol: Synthesis of Enantioenriched β‐Amino Esters

open access: yesAngewandte Chemie, EarlyView.
The first nitrile reductive couplings beyond stoichiometric metals or metalloids are described. Using a ruthenium catalyst derived from RuHCl(CO)(PPh3)3 and Cy‐BIPHEP, 2‐propanol‐mediated reductive coupling of phenyl acrylate with aromatic or aliphatic nitriles delivers α,β‐unsaturated β‐amino esters.
Sebastian Höthker   +3 more
wiley   +2 more sources

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