Category: 111-11-5

Florido, Priscila M. published the artcileStudy of FAME model systems: Database and evaluation of predicting models for biodiesel physical properties, Recommanded Product: Methyl octanoate, the main research area is biodiesel FAME system database evaluation predicting model.

The present paper reports a viscosity and d. unpublished database of systems formed for fatty acid Me esters (FAMEs), leading to 426 exptl. data points of each property. Kay’s mixing rule and Grunberg-Nissan equation were used to estimate data and the group contribution models GC-VOL and GC-UNIMOD were used to predict d. and viscosity, resp. For surface tension, parameters of a Wilson modified equation were adjusted and tested in systems with composition similar to biodiesel. D. estimations resulted in global average relative deviations (ARD) of 0.02%, 0.07% and 0.15% for Kay’s mixing rule weighted in mass and molar fractions, and GC-VOL model, resp. For viscosities, GC-UNIMOD was the most accurate model with global ARD of 5.17%. The surface tension prediction resulted in global ARD minor than 7.00%. These results are an important tool to improve the biodiesel production, its modeling and simulation.

Renewable Energy 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, Recommanded Product: Methyl octanoate.

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

Jung, Sungyup published the artcileBiodiesel synthesis from bio-heavy oil through thermally induced transesterification, Recommanded Product: Methyl octanoate, the main research area is bioheavy oil thermal transesterification biodiesel synthesis.

A huge amount of a mixture of unreacted fatty acids and mono/di/triglycerides, namely bio-heavy oil, is generated as a waste from biodiesel industry. Considering that the lipid (i.e., triglycerides) accounts for 80% of the total biodiesel production cost, valorization of bio-heavy oil into biodiesel can be a viable route for enhancing the economic/environmental benefits. Nonetheless, the high contents of free fatty acids and impurities have restricted practical valorization of bio-heavy oil into biodiesel because conventional acid/base catalyzed transesterification suffers from the presence of the impurities. To overcome the tech. challenge, this study suggested a direct valorization platform for the conversion of bio-heavy oil into biodiesel via thermally induced transesterification. Prior to biodiesel production, the properties of bio-heavy oil, such as acid value (105 mg KOH g-1 bio-heavy oil), its elemental compositions and thermal stability were characterized. Acid-catalyzed transesterification with a H2SO4 catalyst showed the 31.1 wt% of biodiesel yield after 24 h of reaction at 60°C. However, thermally induced transesterification exhibited 59.3 wt% of biodiesel yield after 1 min of reaction at 400°C using a porous medium (SiO2) with no presence of a catalyst. The porous SiO2 (pore size: 6 nm) provided confined spaces for lipids and methanol, allowing the rapid transesterification reactions between them at high temperature The biodiesel yield from thermally induced transesterification was proportionate to reaction temperature by 360°C, but it decreased at > 400°C due to the chem. bond scissions of unsaturated hydrocarbons. C6-22 fatty acid Me esters (FAMEs) were produced from thermally induced (non-catalytic) transesterifications, and weight fractions of each FAMEs were constant, regardless of the reaction conditions at ≤ 400°C. All exptl. findings offer a new recycle platform for BHO into biodiesel.

Journal of Cleaner Production 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, Recommanded Product: Methyl octanoate.

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

Lin, Xiaocheng published the artcileSelf-solidification ionic liquids as heterogeneous catalysts for biodiesel production, Quality Control of 111-11-5, the main research area is solidification ionic liquid heterogeneous catalyst biodiesel.

Different from the common ionic liquids (ILs) as homogeneous catalysts, solid ionic liquids (SILs) as heterogeneous catalysts are simply fabricated herein via an efficient one-step reaction for biodiesel production Specifically, low-cost aliphatic amines containing secondary and/or primary amine groups are selected as the starting materials followed by the reaction with 1,3-propane sultone under mild conditions to graft sulfonic acid (-SO3H) groups onto the final products. The -SO3H groups are divided into two types: the bonding -SO3H groups (zwitterion arising from the hydrogen bond between sulfonic acid groups and amine groups) make the products turn solid while the free -SO3H groups endow the products with catalytic activity. Such solid ionic liquids (SILs) present pronounced activity, excellent stability and reusability as heterogeneous catalysts in esterification of free fatty acids (FFAs), indicating great potential in biodiesel production because of their high performance and low cost.

Green Chemistry 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, Quality Control of 111-11-5.

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

Fuad Hossain, Md. published the artcileIdentification and culturing of cyanobacteria isolated from freshwater bodies of Sri Lanka for biodiesel production, Synthetic Route of 111-11-5, the main research area is Croococcidiopsis Cephalothrix Leptolyngbya methyl octanoate biodiesel Sri Lanka; Biodiesel; Cyanobacteria; Gas chromatography.

The present study was carried out to investigate cyanobacteria as a potential source for biodiesel production isolated from fresh water bodies of Sri Lanka. FAME component was identified using gas chromatog. (GC). Atotal of 74 uni-algal cultures were obtained from Biofuel and Bioenergy laboratory of the National Institute of Fundamental Studies (NIFS), Kandy, Sri Lanka. The total lipid content was recorded highest in Oscillatoria sp. (31.9 ± 2.01% of dry biomass) followed by Synechococcus sp. (30.6 ± 2.87%), Croococcidiopsis sp. (22.7 ± 1.36%), Leptolyngbya sp. (21.15 ± 1.99%), Limnothrixsp. (20.73 ± 3.26%), Calothrix sp. (18.15 ± 4.11%) and Nostoc sp. (15.43 ± 3.89%), Cephalothrixsp. (13.95 ± 4.27%), Cephalothrix Komarekiana (13.8 ± 3.56%) and Westiellopsisprolifica (12.80 ± 1.97%). FAME anal. showed cyanobacteria contain Me palmitoleate, Linolelaidic acid Me ester, Cis-8,11,14-eicosatrienoic acid Me ester, Cis-10-heptadecanoic acid Me ester, Me myristate, Me pentadecanoate, Me octanoate, Me decanoate, Me laurate, Me tridecanoate, Me palmitoleate, Me pentadeconoate, Me heptadeconoate, Linolaidic acid Me ester, Me erucate, Me myristate, Myristoloeic acid, Me palmitate, Cis-9-oleic acid Me ester, Me arachidate and Cis-8,11,14-ecosatrieconoic acid Me ester. The present study revealed that cyanobacteria isolated from Sri Lanka are potential source for biodiesel industry because of their high fatty acid content.

Saudi Journal of Biological Sciences 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, Synthetic Route of 111-11-5.

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

Dalvi, Sanjaykumar published the artcileBiodiesel (fatty acid methyl ester) from Chlorococcalean Chlorella vulgaris by single step in-situ transesterification, Name: Methyl octanoate, the main research area is fatty acid methyl ester transesterification algae assessment.

To study the single step in-situ transesterification process for synthesis of fatty acid Me ester (biodiesel) from microalgae biomass Chlorococcalean Chlorella vulgaris. The growth and lipid productivity of an isolated microalgae C. vulgaris were studied under Chu’s 10 modified media under phototrophic cultivation conditions. In-situ transesterification of this dry biomass with methanol in presence of base catalyst at 60° C was carried out to investigate the fatty acid Me ester’s biochem. composition by FTIR & anal. performed using GCMS technique. The cetane number was also calculated The biodiesel fraction from C. vulgaris biomass was found to be 85.58%. The 43.40% lipid fraction was obtained from the biomass of C. vulgaris. In the in-situ transesterification process, the optimal concentration of potassium hydroxide (KOH) and methanol yields an 85.58 percent biodiesel fraction. The presence of lipid compounds and the biochem. composition of fatty acid Me ester were verified with the help of FTIR spectral anal. The gas chromatog.-mass spectrometry anal. explores the fatty acid Me ester profile, which comprises 29.05% and 56.54 percent saturated and unsaturated FAMEs. Through GCMS, the fatty acid Me ester composition of C. vulgaris microalgae species was revealed through six types of fatty acid Me esters, of which 54.95%, 11-octadecenoic acid Me ester, is the dominant one. The cetane number of C. vulgaris biodiesel was determined to be 67.726; this is comparable to diesel fuel according to ASTM-D613, and the presence of a higher fatty acid Me ester composition indicates favorable biofuel qualities. The calculation of cetane number by theor. method and affirmation of ecofriendly single step in-situ transesterification method for biodiesel production

Indian Journal of Science and 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

Nahar, Sharifun published the artcileNoninvasive, label-free, and quantitative monitoring of lipase kinetics using terahertz emission technology, Recommanded Product: Methyl octanoate, the main research area is noninvasive quant monitoring lipase kinetics terahertz emission technol; Candida antarctica lipase B; enzyme assay; esterase; horseradish peroxidase; milk; terahertz emission.

Enzymes catalyze chem. transformations of great importance in many fields, and anal. of the rate of these transformations is equally important. The latter are typically monitored using surrogate substrates that produce quantifiable optical signals, owing to limitations associated with “”label-free”” techniques that could be used to monitor the transformation of original substrate mols. In this study, terahertz (THz) emission technol. is used as a noninvasive and label-free technique to monitor the kinetics of lipase-induced hydrolysis of several substrate mols. (including the complex substrate whole cow’s milk) and horseradish peroxidase-catalyzed oxidation of o-phenylenediamine in the presence of H2O2. This technique was found to be quant., and kinetic parameters are compared to those obtained by proton NMR spectroscopy or UV/Vis spectroscopy. This study sets the stage for investigating THz emission technol. as a tool for research and development involving enzymes, and for monitoring industrial processes in the food, cosmetic, detergent, pharmaceutical, and biodiesel sectors.

Biotechnology and Bioengineering 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, Recommanded Product: Methyl octanoate.

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

Naser, Jamil published the artcileRegeneration of spent bleaching earth and conversion of recovered oil to biodiesel, HPLC of Formula: 111-11-5, the main research area is oil biodiesel conversion spent bleaching; Biodiesel; Bleaching; Pyrolysis; Regenerated bleaching earth (RBE); Spent bleaching earth (SBE); Vegetable oil.

A large amount of spent bleaching earth (SBE) solid waste is generated by the vegetable oil refining industry. This spent bleaching earth contains entrapped crude oil and in most cases, it is disposed of in its pristine state, which is considered an environmental hazard. In this work, the regeneration of SBE by pyrolysis or solvent extraction, and the conversion of the recovered entrapped vegetable oil to biodiesel are investigated. The entrapped oil was extracted using n-hexane, methanol or steam as solvents, and the SBE was regenerated by pyrolysis under inert environment of Nitrogen at 450°C, 550°C and 650°C. After oil extraction, the regenerated bleaching earth (RBE) was activated and employed in virgin vegetable oil bleaching. Peroxide activated samples of methanol-extracted and pyrolyzed regenerated bleaching earth at 450°C and 650°C exhibit superior bleaching property; demonstrating that the SBE could be regenerated to have superior bleaching capacity over fresh bleaching earth. Thermogravimetric anal. (TGA) and Fourier transform IR (FTIR) anal. of the SBE show that methanol extracted 23.5% out of the 35% residual oil (i.e. 67% efficiency) compared to 15.7% (i.e. 45% efficiency) by n-hexane, while pyrolysis extracted 33% out of the 35% residual oil (i.e. 95% efficiency). GC-MS anal. of the produced biodiesel shows that the n-hexane extracted oil produces more fatty acid Me esters (FAME). Therefore, the choice of solvent depends on the intended application; as methanol regenerates the SBE better while retaining its adsorptive properties, while n-hexane gives a better biodiesel yield.

Waste Management (Oxford, United Kingdom) 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, HPLC of Formula: 111-11-5.

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

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