Month: December 2022

Bunushree, B. published the artcileQualitative analysis of biodiesel produced by alkali catalyzed transesterification of waste cooking oil using different alcohols, HPLC of Formula: 929-77-1, the main research area is biodiesel alkali catalyzed transesterification waste cooking oil alc.

The present study evaluates the nature of fatty acid Me esters (FAMEs) formed through alkali-catalyzed transesterification of waste cooking oil (WCO) using methanol, ethanol as well as in combination, where the sequential addition of ethanol followed by methanol is done keeping the molar ratio of alc. to oil constant (5:1), with sodium hydroxide as catalyst. A substantial reduction in reaction time from 8 h to 20 min is seen in the latter case. Further, the gas chromatog./mass spectrometry (GC-MS) anal. of the transesterified oil show a significant presence of FAMEs. Transesterified oil obtained from a combination of both the solvents show substantial quantities of unsaturated FAMEs [linoleic acids (41.89%), palmitelaidic acid (7.97%)], saturated FAMEs [stearic acids (4.62%), arachidic acids (2.54%)]and minor fraction of other acids. Hence, the utilization of WCO with the use of combined solvent system for transesterification, appear to have a great potential for replacing the conventional substrates that are being used for biodiesel production without much compromising on engine modifications.

Indian Journal of Chemical Technology published new progress about Biodiesel fuel. 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, HPLC of Formula: 929-77-1.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Bunushree, B. published the artcileQualitative analysis of biodiesel produced by alkali catalyzed transesterification of waste cooking oil using different alcohols, Name: Methyl octanoate, the main research area is biodiesel alkali catalyzed transesterification waste cooking oil alc.

The present study evaluates the nature of fatty acid Me esters (FAMEs) formed through alkali-catalyzed transesterification of waste cooking oil (WCO) using methanol, ethanol as well as in combination, where the sequential addition of ethanol followed by methanol is done keeping the molar ratio of alc. to oil constant (5:1), with sodium hydroxide as catalyst. A substantial reduction in reaction time from 8 h to 20 min is seen in the latter case. Further, the gas chromatog./mass spectrometry (GC-MS) anal. of the transesterified oil show a significant presence of FAMEs. Transesterified oil obtained from a combination of both the solvents show substantial quantities of unsaturated FAMEs [linoleic acids (41.89%), palmitelaidic acid (7.97%)], saturated FAMEs [stearic acids (4.62%), arachidic acids (2.54%)]and minor fraction of other acids. Hence, the utilization of WCO with the use of combined solvent system for transesterification, appear to have a great potential for replacing the conventional substrates that are being used for biodiesel production without much compromising on engine modifications.

Indian Journal of Chemical Technology published new progress about Biodiesel fuel. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Name: Methyl octanoate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Potrich, E. published the artcileThermodynamic properties of formation estimated to biodiesel esters using gaussian quantum chemistry software and group contribution method of constantinou and gani, Recommanded Product: Methyl decanoate, the main research area is biodiesel ester Gaussian quantum chem constantinou gani thermodn property.

A lot of recent research has focused on the study of biocatalysts and nanocatalysts to improve biodiesel production However, knowledge of the thermodn. properties of the reaction components is necessary. In this work, the enthalpy of formation and Gibbs free energy of formation for Me to pentyl esters were calculated using the Gaussian quantum chem. software (model B3LYP/6-31G(d, p)) and the group contribution method of Constantinou and Gani (MCG). The values obtained by both methodologies present certain differences in relation to the values in the literature. Thus, three correction parameters, which were based on the number of atoms of 26 different mols., were estimated by minimizing the error function and later used to extrapolate the results to larger mols. of interest. After the use of the correction parameters, the mean deviation between the exptl. and calculated values by Gaussian was 0.723% for enthalpy and 1.087% for Gibbs, whereas for MCG, it was 1.324 and 2.540%, resp. As the methodol. proved to be efficient, the thermodn. properties of the formation of 23 esters that compose the biodiesel were estimated These properties are of great importance, mainly for the calculation of chem. equilibrium and reaction data in the development of new catalysts.

Chemical Industry & Chemical Engineering Quarterly published new progress about Biodiesel fuel. 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, Recommanded Product: Methyl decanoate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Li, Ning published the artcileEsterification of levulinic acid in the production of fuel additives catalyzed by porous sulfonated carbon derived from pine needle, Related Products of esters-buliding-blocks, the main research area is esterification levulinate fuel additive catalyst porous sulfonated carbon pine.

Pine needle derived porous sulfonated carbon is facilely synthesized and subsequently applied in the levulinic acid (LA) esterification with ethanol. Various preparation parameters are optimized to improve the catalytic efficiency. The resulting heterogeneous catalysts possess a hierarchical porous structure and a high acidic d. of 2.08 mmol g-1, leading to their high activity and superior recyclability. Under the present conditions, the initial activity is maintained as high as 91.3% even after six runs. This work verifies the porous biomass-derived sulfonated carbon are highly promising catalysts for the environmentally benign synthesis of Et levulinate fuel additive.

Catalysis Communications published new progress about Biodiesel fuel. 539-88-8 belongs to class esters-buliding-blocks, name is Ethyl 4-oxopentanoate, and the molecular formula is C7H12O3, Related Products of esters-buliding-blocks.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Macawile, Maria Cristina published the artcileGreen synthesis of sulfonated organosilane functionalized multiwalled carbon nanotubes and its catalytic activity for one-pot conversion of high free fatty acid seed oil to biodiesel, Application In Synthesis of 929-77-1, the main research area is mercaptopropyltrimethoxysilane carbon nanotube catalyst green synthesis Hibiscus oil biodiesel.

An environmentally friendly surface modification method was applied to synthesize solid acid catalyst suitable for biodiesel production The catalyst was prepared from multiwalled carbon nanotube (MWCNT) and 3-mercaptopropyltrimethoxysilane (3-MPTMS) oxidized in hydrogen peroxide under supercritical carbon dioxide (scCO2). The carbon dioxide under supercritical condition with ethanol as cosolvent allows swift transportation and promotes uniform distribution of organosilane groups on randomly entangled and layered orientation of MWCNT. The catalyst was characterized by using Field emission SEM-energy dispersive x-ray (FESEM-EDX), Thermogravimetric anal. (TGA), Fourier transform IR (FTIR) spectroscopy, X-ray powder diffraction (XRD), Brunauer-Emmett-Teller (BET) anal. and Time-of-Flight secondary ion mass spectrometry (TOF-SIMS). The catalytic activity of the catalyst was tested using a high free fatty acid (FFA)-containing Hibiscus cannabinus (kenaf) oil, and the fatty acid Me esters (FAME) products from simultaneous esterification and transesterification reactions were quantified. To compare with scCO2 method, an acid catalyst was also prepared using liquid chem. deposition that resulted in only 45.11% biodiesel conversion. On the other hand, the optimum conversion of 93.10% was obtained using a scCO2 synthesized catalyst at the following transesterification conditions: temperature = 63°C, methanol:oil ratio = 14:1, 10 wt % catalyst and time = 240 min.

Journal of Cleaner Production published new progress about Biodiesel fuel. 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Application In Synthesis of 929-77-1.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Balakrishnan, A. published the artcileExperimental correlation of laminar flame pollutant emission indices with methyl ester fuel degree of unsaturation and equivalence ratio, Category: esters-buliding-blocks, the main research area is methyl ester fuel unsaturation equivalence laminar fame pollutant emission.

Fuel unsaturation has been widely cited as a reason for the increased nitric oxide emissions from compression ignition engines when fueled with Me esters (biodiesels) and their blends with petroleum counterparts. In an earlier study, a parameter called degree of unsaturation (DOU) was established to serve as a common platform across different fuel families (esters/alkanes/aromatics) to quantify the effects of fuel unsaturation, particularly with petroleum/biodiesel blends. DOU can be evaluated based on the average mol. formula of the fuel alone without involving complex and expensive exptl. procedures such as those involved in the measurement of iodine number and bromine number In this article, the fuel unsaturation effects on the emission characteristics from the laminar flames of blends of various pre-vaporized Me esters, such as Me oleate, neat biodiesels (from Me esters of soy, canola, palm and rapeseed feedstock) and biodiesel blends were investigated at four burner-exit equivalence ratios of 0.9, 1.0, 1.2 and 1.5. The selection of these fuels for this study was an attempt to isolate the fuel unsaturation effect of biodiesels, and their blending effect with petroleum fuels. Exptl. correlations were developed between DOU (over a range of 1.7-2.5) and global NO and CO emission indexes as a function of equivalence ratio. The effects of DOU on EINO were significantly influenced by the equivalence ratio, with the maximum influence at an equivalence ratio of 1.2.

Fuel published new progress about Biodiesel fuel. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Category: esters-buliding-blocks.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Balakrishnan, A. published the artcileExperimental correlation of laminar flame pollutant emission indices with methyl ester fuel degree of unsaturation and equivalence ratio, HPLC of Formula: 929-77-1, the main research area is methyl ester fuel unsaturation equivalence laminar fame pollutant emission.

Fuel unsaturation has been widely cited as a reason for the increased nitric oxide emissions from compression ignition engines when fueled with Me esters (biodiesels) and their blends with petroleum counterparts. In an earlier study, a parameter called degree of unsaturation (DOU) was established to serve as a common platform across different fuel families (esters/alkanes/aromatics) to quantify the effects of fuel unsaturation, particularly with petroleum/biodiesel blends. DOU can be evaluated based on the average mol. formula of the fuel alone without involving complex and expensive exptl. procedures such as those involved in the measurement of iodine number and bromine number In this article, the fuel unsaturation effects on the emission characteristics from the laminar flames of blends of various pre-vaporized Me esters, such as Me oleate, neat biodiesels (from Me esters of soy, canola, palm and rapeseed feedstock) and biodiesel blends were investigated at four burner-exit equivalence ratios of 0.9, 1.0, 1.2 and 1.5. The selection of these fuels for this study was an attempt to isolate the fuel unsaturation effect of biodiesels, and their blending effect with petroleum fuels. Exptl. correlations were developed between DOU (over a range of 1.7-2.5) and global NO and CO emission indexes as a function of equivalence ratio. The effects of DOU on EINO were significantly influenced by the equivalence ratio, with the maximum influence at an equivalence ratio of 1.2.

Fuel published new progress about Biodiesel fuel. 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, HPLC of Formula: 929-77-1.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Balakrishnan, A. published the artcileExperimental correlation of laminar flame pollutant emission indices with methyl ester fuel degree of unsaturation and equivalence ratio, SDS of cas: 110-42-9, the main research area is methyl ester fuel unsaturation equivalence laminar fame pollutant emission.

Fuel unsaturation has been widely cited as a reason for the increased nitric oxide emissions from compression ignition engines when fueled with Me esters (biodiesels) and their blends with petroleum counterparts. In an earlier study, a parameter called degree of unsaturation (DOU) was established to serve as a common platform across different fuel families (esters/alkanes/aromatics) to quantify the effects of fuel unsaturation, particularly with petroleum/biodiesel blends. DOU can be evaluated based on the average mol. formula of the fuel alone without involving complex and expensive exptl. procedures such as those involved in the measurement of iodine number and bromine number In this article, the fuel unsaturation effects on the emission characteristics from the laminar flames of blends of various pre-vaporized Me esters, such as Me oleate, neat biodiesels (from Me esters of soy, canola, palm and rapeseed feedstock) and biodiesel blends were investigated at four burner-exit equivalence ratios of 0.9, 1.0, 1.2 and 1.5. The selection of these fuels for this study was an attempt to isolate the fuel unsaturation effect of biodiesels, and their blending effect with petroleum fuels. Exptl. correlations were developed between DOU (over a range of 1.7-2.5) and global NO and CO emission indexes as a function of equivalence ratio. The effects of DOU on EINO were significantly influenced by the equivalence ratio, with the maximum influence at an equivalence ratio of 1.2.

Fuel published new progress about Biodiesel fuel. 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, SDS of cas: 110-42-9.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Niju, S. published the artcileFish-Bone-Doped Sea Shell for Biodiesel Production from Waste Cooking Oil, Product Details of C9H18O2, the main research area is Tellina shell waste fish bone cooking oil biodiesel production.

Transesterification of waste cooking oil with methanol using calcined waste fish bone and sea shell catalyst was studied. An inexpensive and environmentally benign catalyst was prepared from waste fish bones (WFB) and Tellina tenuis shells (TTS), and the catalyst was characterized by Fourier transform IR spectroscopy (FTIR), SEM (SEM), Brunauer-Emmett-Teller, X-ray diffraction (XRD) and energy-dispersive X-ray spectroscopy (EDS) techniques. From XRD, it was confirmed that the major phase of WFB was hydroxyapatite and calcium oxide was found to be the dominant fraction of calcined TTS. FTIR and SEM-EDS anal. of WFB confirmed the presence of hydroxyapatite exhibiting hexagonal structure. Different combinations of WFB and TTS have been developed to obtain novel catalyst composition Above 94% conversion was reported with various combinations of WFB and TTS using 3 wt% catalyst, 12:1 molar ratio, 65°C and 1.5 h.

Journal of the Institution of Engineers (India): Series E published new progress about Biodiesel fuel. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Product Details of C9H18O2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Pandiangan, Kamisah D. published the artcileProduction of magnesium oxides from raw salt solution using electrochemical precipitation method as a heterogeneous catalyst for transesterification of coconut oil, Safety of Methyl octanoate, the main research area is coconut oil magnesium oxide electrochem precipitation transesterification.

This study was conducted to explore the production of magnesium oxide from raw salt solution using electrochem. precipitation, followed by calcination. Electrochem. precipitation was conducted by electrolysis of the salt solution using nickel rods as cathodes and graphite as anodes. Two sets of salt solutions were prepared: one set without pretreatment and another with BaCl2 pretreatment. The solutions were used to study the effect of salt concentration, potential, and electrolysis time. The representatives of the MgO produced were tested as catalysts for transesterification of coconut oil. The results indicate that optimum mass of precipitate was produced from 400 mg/L salt solution electrolyzed using 8 V for 60 min. Elemental anal. using X-Ray Fluorescence (XRF) revealed the presence of Mg as the main component of the precipitate, confirming the electrochem. conversion of Mg2+ into solid Mg(OH)2. The MgO with the purity of 74.23% and 88.87% was produced from non-pretreated and pretreated salt solution, resp. The transesterification experiments indicate that the yield of 90% and 98% was achieved using the MgO produced from non-pretreated and pretreated salt solution, resp.

Revista de Chimie (Bucharest, Romania) published new progress about Biodiesel fuel. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Safety of Methyl octanoate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics