Category: 929-77-1

Yadav, Meena published the artcileTransesterification of used vegetable oil using BaAl2O4 spinel as heterogeneous base catalyst, Application of Methyl docosanoate, the main research area is barium aluminum oxide vegetable oil transesterification heterogeneous catalyst.

Present study aim to synthesize biodiesel using a heterogeneous base catalyst, barium aluminate (BaAl2O4) and used vegetable oil (UVO) feedstock via transesterification reaction. The catalyst was synthesized using co-precipitation route and characterized using techniques TG-DT anal., XRD, FTIR, HRSEM-EDX, textural properties, and basicity. The best exptl. condition of transesterification reaction was found at methanol to oil molar ratio 21:1, catalyst dose 4 wt%, reaction temperature of 65 ± 0.5°C for 150 min of reaction duration and 600 rpm stirring rate which resulted in 93.28% conversion of Me ester. Five cycle reusability of the synthesized catalyst after high-temperature regeneration was also investigated at optimized reaction conditions. Moreover, kinetics and thermodn. studies of biodiesel synthesis reaction were also studied and Ea = 61.48 kJ/mol, A = 5.95 × 107 min-1, ΔH = 55.873 kJ mol-1, ΔS = -0.136 kJ mol-1 K-1, and ΔG (at 338 K) = 101.847 kJ mol-1 were obtained resp. The important fuel properties such as acid value, d., kinematic viscosity (40°C) calorific value, flash point, fire point, cloud point, pour point, and cetane number of synthesized biodiesel were analyzed and found satisfactory with ASTM D 6751 specifications. In addition, the green chem. matrix E-factor and PMI values were also formulated.

Energy Conversion and Management 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 of Methyl docosanoate.

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

Numwong, Natthida published the artcileEffect of Pd particle size on activity and cis-trans selectivity in partial hydrogenation of soybean oil-derived FAMEs over Pd/SiO2 catalysts, Recommanded Product: Methyl docosanoate, the main research area is palladium size silica Soybean fatty acid methyl ester hydrogenation.

Partial hydrogenation of soybean oil-derived fatty acid Me esters (FAMEs) was performed to improve oxidative stability of biodiesel. The reaction was tested in a semi-batch reactor at 100°C, 0.4 MPa. The effect of Pd particle size on activity and cis-trans selectivity was investigated over SiO2- and MCM-41-supported Pd catalysts, with different Pd loadings (0.5 and 1 weight%). For Pd/SiO2 catalysts with relatively large Pd particle sizes (6.1-7.8 nm), the adsorption of polyunsaturated C18:2 and C18:3 FAMEs was promoted on the flat metal surface, providing 2- to 3-fold higher turnover frequency (TOF) compared with Pd/MCM-41 catalysts. In contrast, the Pd/MCM-41 catalysts with relatively small Pd particle sizes (2.7-4.0 nm), showed higher selectivity towards the desired monounsaturated C18:1 FAMEs due to lower affinity of isolated double bond (presented in C18:1) on the Pd surface. In addition, selectivity towards the desired cis-C18:1 FAMEs was found to be highly sensitive to Pd particle size. The 0.5Pd/MCM-41 catalyst with small Pd particle size (2.7 nm), provided high cis-C18:1 selectivity, resulting in a biodiesel with better cold flow property compared with the trans-isomers. With partial hydrogenation over the prepared Pd catalysts, biodiesel with significantly improved oxidative stability (>10 h) could be obtained.

Fuel Processing 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, Recommanded Product: Methyl docosanoate.

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

Yilmaz, Nadir published the artcileFormation of polycyclic aromatic hydrocarbons and regulated emissions from biodiesel and n-butanol blends containing water, Synthetic Route of 929-77-1, the main research area is polycyclic aromatic hydrocarbon emission biodiesel engine butanol water blend; Diesel engine; Higher alcohol; Polycyclic aromatic hydrocarbons; Renewable fuel; Toxicity.

To increase the use of biofuels in diesel engines and reduce harmful emissions emitted from diesel fuel, biodiesel and higher alcs. are fuel sources at the forefront of research. The aim of this study is to understand the effect of water-containing n-butanol-biodiesel blends on regulated emissions, emphasizing nitrogen oxides (NOx) and polycyclic aromatic hydrocarbons (PAHs), which are harmful for the environment and engine durability. 10% n-butanol (B90Bu10) and 10% n-butanol-1% water (B89Bu10W1) were blended with 89% waste-oil biodiesel and tested in a diesel engine at four engine loads at a constant engine speed. PAH samples were analyzed using gas chromatog.-mass spectrometry (GC-MS). Results showed B100, B90Bu10 and B89Bu10W1 blends increased break specific fuel consumption (BSFC), exhaust gas temperatures (EGT), carbon monoxide (CO) and hydrocarbon (HC) emissions. However, NOx emissions significantly decreased using butanol and butanol-water blends. Compared to diesel, biodiesel and blended fuels significantly reduced total PAHs and PAH toxicity up to 75.0%. However, B89Bu10W1 increased total PAH and PAH toxicity by 35.7%. Overall, the biodiesel-butanol blend, which emits less carcinogenic pollutants and low-cyclic PAHs than water-containing fuel, was found to reduce the risk of wetstacking in diesel engines operating under low loads.

Journal of Hazardous Materials 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, Synthetic Route of 929-77-1.

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

Niculescu, Rodica published the artcileOn the determination of the distillation curve of fatty acid methyl esters by gas chromatography, SDS of cas: 929-77-1, the main research area is fatty acid methyl ester distillation curve determination gas chromatog.

Given the increased concern for environmental protection and the need for finding viable alternatives for replacing fossil fuels in internal combustion engines, the research carried out in the recent past on the use of biodiesel has increased. Out of the physico-chem. characteristics of fuels, the volatility has a great influence on the combustion process. It is therefore important to accurately obtain all the data related to the volatility of the fuels. A way to assess the fuel’s volatility is the distillation curve (DC). The simplest way to determine DC is at atm. pressure. However, for low volatility fuels such as biodiesel, atm. distillation is not indicated, therefore, using of alternative methods is needed. One method that can be used in this case is the determination of the boiling range distribution by gas chromatog. (GC). The GC equipment used for this purpose is specifically designed for this aim, meaning that the determination of DC by the GC itself is a given or standard feature of the equipment. However, in many labs, such specifically designed GC equipment is not available. In this context, the paper aims at providing a GC based method for finding the b.ps. of fatty acid methyl-esters (FAME) on standard FID based GC instrument for those researchers wishing to add new capabilities to their existing GC instruments. To validate the method, five different samples of pure biodiesel were analyzed, and the results obtained by applying this method were confirmed by comparison with the distillation curve obtained via vacuum distillation

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, SDS of cas: 929-77-1.

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

Wu, Gang published the artcileA realistic skeletal mechanism for the oxidation of biodiesel surrogate composed of long carbon chain and polyunsaturated compounds, Related Products of esters-buliding-blocks, the main research area is biodiesel oxidation long carbon chain polyunsaturated compound.

To obtain a realistic reduced reaction model for the combustion of biodiesel in compression ignition engine, the heavy Me esters with long carbon chain and polyunsaturated degree were used to characterize real biodiesel fuel in this study. Me palmitate (MHD), Me stearate (MOD), Me linoleate (MOD9D12D), methyl-5-decenoate (MD5D) and n-decane were selected as the surrogate of biodiesel. A skeletal mechanism with 187 species and 982 reactions was developed for the oxidation of biodiesel surrogate using the decoupling methodol. The mechanism was partitioned into three, including the relatively simplified fuel-related sub-mechanism, the ester group-related sub-mechanism, and the detailed core sub-mechanism during the construction process. It was validated by zero-dimensional ignition delay for each component in biodiesel surrogate under variable conditions. The predicted outcomes are in concordance with the exptl. information, which preliminarily verifies the effectiveness and accuracy of the mechanism. A three-dimensional computational fluid dynamics code coupled with the mechanism was subsequently utilized to simulate engine combustion. The findings show that the combustion characteristics of biodiesel are robustly replicated, portraying that the newly developed biodiesel mechanism can be assuredly used in the practical engine simulation.

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, Related Products of esters-buliding-blocks.

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

Florido, Priscila M. published the artcileStudy of FAME model systems: Database and evaluation of predicting models for biodiesel physical properties, Product Details of C23H46O2, 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. 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Product Details of C23H46O2.

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

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

Alviso, Dario published the artcilePrediction of biodiesel physico-chemical properties from its fatty acid composition using genetic programming, Recommanded Product: Methyl docosanoate, the main research area is biodiesel physicochem property fatty acid composition genetic programming.

This paper presents regression anal. of biodiesel physico-chem. properties as a function of fatty acid composition using an exptl. database. The study is done by using 48 edible and non-edible oils-based biodiesel available data. Regression equations are presented as a function of fatty acid composition (saturated and unsaturated Me esters). The physico-chem. properties studied are kinematic viscosity, flash point, cloud point, pour point (PP), cold filter plugging point, cetane (CN) and iodine numbers The regression technique chosen to carry out this work is genetic programming (GP). Unlike multiple linear regression (MLR) strategies available in literature, GP provides generic, non-parametric regression among variables. For all properties analyzed, the performance of the regression is systematically better for GP than MLR. Indeed, the RSME related to the exptl. database is lower for GP models, from ≈ 3% for CN to ≈ 55% for PP, in comparison to the best MLR model for each property. Particularly, most GP regression models reproduce correctly the dependence of properties on the saturated and unsaturated Me esters.

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, Recommanded Product: Methyl docosanoate.

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

Ghani, Naila published the artcileComparison of Photo-Esterification Capability of Bismuth Vanadate with Reduced Graphene Oxide Bismuth Vanadate (RGO/BiVO4) Composite for Biodiesel Production from High Free Fatty Acid Containing Non-Edible Oil, Recommanded Product: Methyl docosanoate, the main research area is bismuth vanadate reduced graphene oxide composite photoesterification capability.

Biodiesel has gained much more attention as an alternative and renewable energy source due to the continuous exhaustion of petroleum reserves and their inauspicious environmental effects. Non-edible feedstocks are economically viable for the production of biodiesel but the presence of higher amount of free fatty acids (FFAs) in these oils is a main hurdle for getting good quality biodiesel. This issue can be addressed through esterification prior to transesterification of oil. This work was designed to evaluate soapnut oil as a source for biodiesel production Moreover, the catalytic activity of two sunlight active photocatalysts; BiVO4 and RGO/BiVO4 was also compared for the esterification of higher FFA content present in soapnut oil. BiVO4 and RGO/BiVO4 were characterized through SEM, XRD and FT-IR. Exptl. results revealed that RGO/BiVO4 exhibited higher catalytic activity as compare to BiVO4 for the esterification of FFA under sunlight irradiation Different process variables were optimized and maximum conversion of FFA (88%) was obtained at 3 : 1 methanol to oil ratio, 5% catalyst dose, 300 rpm stirring speed and 3 h of reaction time. Esterified oil was then transesterified by using MgO-KOH heterogeneous catalyst and maximum yield (94%) of soapnut Me esters (SNMEs) was obtained at 9 : 1 methanol to oil ratio, 3% catalyst dose, 2 h reaction time, 80°C temperature and at 300 rpm stirring speed. The physic-chem. anal. of synthesized biodiesel revealed that it meets ASTM standards

ChemistrySelect 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, Recommanded Product: Methyl docosanoate.

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