Category: 929-77-1

Laskar, Ikbal Bahar published the artcileTaming waste: Waste Mangifera indica peel as a sustainable catalyst for biodiesel production at room temperature, HPLC of Formula: 929-77-1, the main research area is waste Mangifera catalyst biodiesel production.

In the present study, the efficacy of waste peels of mango (Mangifera indica) as a basic catalyst in room temperature transesterification reaction is investigated for biodiesel production from soybean oil. Biowaste based catalyst, Mangifera indica peel ash, was prepared by conventional open air burning of the mango peel. The morphol. and chem. components of the catalyst are investigated using several techniques such as X-ray diffraction (XRD), Fourier Transform IR Spectroscopy (FT-IR), SEM (SEM), Transmission Electron Microscopy (TEM), Thermogravimetric anal. (TGA), X-ray fluorescence (XRF), XPS, Energy-dispersive X-ray spectroscopy (EDS), Brunauer-Emmett-Teller (BET) and Hammett indicator method. The highest biodiesel yield of 98% was attained under the optimized reaction conditions; methanol to oil ration of 6:1, catalyst loading of 6 wt%, and time of 4 h under room temperature Crucially, the catalyst retained its activity up to 4th cycle of reused. The excellent catalytic activity of the ash catalyst could be attributed to the presence of highly basic metal oxides such as K2O, MgO and CaO, its high surface area and porous nature.

Renewable Energy published new progress about Acid number. 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

Rocabruno-Valdes, C. I. published the artcileCorrosion rate prediction for metals in biodiesel using artificial neural networks, COA of Formula: C23H46O2, the main research area is biodiesel corrosion rate prediction artificial neural network.

The objective of this research was to develop a direct artificial neural network with the ability to predict a corrosion rate of metals in different biodiesel. Exptl. values were obtained by the electrochem. noise technique, EN, as well as, information reported in the literature. A backpropagation model was proposed with three layers; metal and biodiesel composition, blend biodiesel/diesel, total acid number (TAN), temperature and exposure time were considered as input variables in the model. The best fitting training data were acquired with 24:4:1, considering a Levenberg -Marquardt learning algorithm, a hyperbolic tangent and linear transfer functions in the hidden and output layer resp. Exptl. and simulated data were compared satisfactorily through the linear regression model with a correlation coefficient of 0.9885 and a mean square error, MSE, of 2.15 × 10-4 in the validation stage. Furthermore, the model agreed the requirements of the slope and the intercept statistical test with a 99% confidence. The obtained results indicated that the ANN model could be attractive as corrosion rate estimator.

Renewable Energy published new progress about Acid number. 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, COA of Formula: C23H46O2.

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

Adama, K. K. published the artcileComponent distribution associated with phase separation and purification of tropical almond biodiesel at different temperatures, Recommanded Product: Methyl docosanoate, the main research area is almond biodiesel component distribution phase separation purification.

Accurate knowledge of the components in the purification of biodiesel is important in achieving consistency in quality for the separation and purification process. In this paper, ternary phase diagrams were used to study the phase separation and purification of tropical almond biodiesel at temperatures of 20 °C, 30 °C and 40 °C. The biodiesel was produced using alk. transesterification of the seed oil. The biodiesel was characterized using ASTM and EN standard methods. A modified cloud point titration procedure under constant temperature was used to determine the tie lines and binodal compositions The phase mixture compositions were determined using gas chromatog. method. Distribution coefficient and selectivity anal. were performed and data accuracy, consistency and reliability were done using a first-order linear polynomial model. The result revealed free fatty acid values for the oil and the biodiesel as 0.63 and 0.23 resp. The data quality and reliability showed a high coefficient of determination of 0.9998, adjusted coefficient of determination of 0.9887, a standard deviation of 0.0327, and a correlation coefficient of 0.8349 at the investigated temperatures Methanol was prevalent in the glycerol phase. Ternary phase diagrams provided the visual means of estimating the distribution of the components.

Renewable Energy published new progress about Acid number. 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

Jain, Shubham published the artcilePassion fruit seed extract as an antioxidant additive for biodiesel; shelf life and consumption kinetics, Computed Properties of 929-77-1, the main research area is passion fruit extract antioxidant additive biodiesel shelf life kinetics.

One of the primary concerns in the use of biodiesel is its susceptibility towards radical-mediated oxidative reactions. The presence of unsaturated Me esters renders biodiesel vulnerable to oxidation It necessitates strategic interventions, which among a few others, includes the use of antioxidant additives. Natural antioxidants have multiple significant advantages over their synthetic counterparts. In the present study, the activity of methanolic passion fruit seed (PFS) extract as an antioxidant additive for waste cooking oil (soybean) biodiesel has been evaluated. The PFS extract contained a high proportion of phenolic compounds and exhibited excellent antiradical activity against model radical DPPH, which encouraged us to explore the case of unstable biodiesel further. At a concentration of 200 ppm, the PFS extract augmented the fuel’s resistance towards oxidation to levels where it could comply with European and the Indian specifications for blend-stock biodiesel. The performance of PFS extract was comparable to that of synthetic antioxidants, including butylated hydroxyanisole and butylated hydroxytoluene. The present study substantiates the utility of plant extracts rich in phenolics as an antioxidant additive for biodiesel.

Fuel published new progress about Acid number. 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Computed Properties of 929-77-1.

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

Liu, Wei published the artcileImproving oxidative stability of biodiesel by cis-trans isomerization of carbon-carbon double bonds in unsaturated fatty acid methyl esters, Application of Methyl docosanoate, the main research area is biodiesel oxidation stability fatty acid methyl ester isomerization.

Biodiesel is a renewable fuel source comprising of fatty acid Me esters (FAMEs). However, biodiesel (FAMEs) is susceptible to autoxidation Therefore, structural modification of FAMEs through decreasing the number of double bonds (e.g., hydrogenation) or trans isomerization of original double bonds in the cis configuration, could improve the oxidative stability of FAMEs. In this work, the trans isomerization of carbon-carbon double bonds in unsaturated FAMEs obtained from edible oils has been successfully achieved using simple and safe p-toluenesulfinic acid as catalyst. And the effects of reaction time, temperature, catalyst loading, amount of water and antioxidants on the trans isomerization were investigated systematically. The results indicated that the amount of water (0-20 wt%) and antioxidants (<200 ppm) had no significant effect on the trans isomerization of unsaturated FAMEs. And the final product (trans FAMEs) was characterized by both GC and FT-IR. The conversion of trans double bonds of the isomerized lard FAMEs could reach 79.9% after heating at 100 °C for only 30 min without changing both the double bonds location and unsaturation degree. In addition, this convenient method was successfully applied in a variety of FAMEs prepared from different vegetable oils (e.g., safflower seed oil, camellia seed oil, high oleic sunflower oil and soybean oil) and approx. 80.0% selectivity of trans isomerization for all FAMEs were obtained. The present study showed a promising method to provide trans-FAMEs products for producing biodiesels with better oxidative stability (for high oleic FAMEs) and without adding of antioxidants. Fuel published new progress about Acid number. 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

Ghani, Naila published the artcileA Facile Approach for the Synthesis of SrTiO3/g-C3N4 Photo-catalyst and its Efficacy in Biodiesel Production, Quality Control of 929-77-1, the main research area is biodiesel production strontium titanate graphitic carbon nitride photocatalyst.

Visible light active photocatalysts have attracted a lot of interest due to their simple chem. workup and recyclability. In this study, the role of Strontium Titanate/graphitic Carbon Nitride composite (SrTiO3/g-C3N4) was investigated for the pretreatment of waste frying oil (WFO) to reduce high free fatty acids (FFAs) for biodiesel production SrTiO3/g-C3N4 photo-catalyst was synthesized through the facile refluxing method and its activity was also compared with simple graphitic carbon nitride (g-C3N4). Exptl. results revealed that SrTiO3/g-C3N4 possesses higher efficiency as compared to g-C3N4. Photo-catalyst was characterized through SEM-EDX, XRD and FT-IR. Maximum conversion of FFAs (85%) was achieved at 1% catalyst dose, 800 rpm stirring speed, 3 : 1 methanol to oil ratio, and 4 h of reaction time. Esterified WFO was converted to waste frying oil Me esters (WFOME) by using CaO-KOH heterogeneous catalyst. The maximum yield of WFOME was obtained at 1.25% catalyst dose, 65 °C, 600 rpm, 2 h of reaction time, and 12 : 1 methanol to oil ratio. Physicochem. anal. of WFOME revealed that it is in accord with ASTM standards

ChemistrySelect published new progress about Acid number. 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Quality Control of 929-77-1.

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

Alwi, Azham published the artcileEvaluation of engine performance and exhaust emission characteristics in a diesel engine using isobutanol-Calophyllum inophyllum biodiesel-diesel ternary blends, Quality Control of 929-77-1, the main research area is diesel engine isobutanol calophyllum inophyllum biodiesel ternary blend evaluation; Biodiesel; Diesel engine; Engine performance; Exhaust emission; Isobutanol.

The availability of natural energy resources and the environmental issues are the most significant issues that are often highlighted by the world communities. With regard to these problems, isobutanol is a higher chain alc. with four carbons which can be derived from biomass resources and it is potential to become an alternative fuel source besides the biodiesel for a diesel engine. The aim of this study is to evaluate the effect of isobutanol with Calophyllum inophyllum Me ester and diesel as the ternary blend on physicochem. properties, engine performance, and emission characteristics. Five different fuel blends containing Calophyllum inophyllum biodiesel and isobutanol were tested on a single-cylinder direct injection diesel engine at different engine load of brake mean effective pressure. The physicochem. properties of the fuel blends were measured and then compared with neat diesel. The results indicate that the blend containing isobutanol and CIME gives a slight increase in BSEC and EGT and a minimal drop in BTE as compared to that of neat diesel. Besides that, the tested blends show a reduction of carbon monoxide and unburned hydrocarbon emissions. Meanwhile, all the fuel blends show a minimal increase in carbon dioxide and nitrogen oxides emissions, compared to that of neat diesel. Isobutanol can be proved as a preferred substitute for biodiesel and diesel fuels to achieve desired engine performance and emissions level.

Environmental Science and Pollution Research published new progress about Acid number. 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Quality Control of 929-77-1.

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

He, Pan Yang published the artcileLow-energy synthesis of kaliophilite catalyst from circulating fluidized bed fly ash for biodiesel production, Recommanded Product: Methyl docosanoate, the main research area is Canola oil transesterification catalyst fly ash kaliophilite biodiesel.

Circulating fluidized bed fly ash (CFBFA) was used to synthesize kaliophilite catalyst via a facile and low-energy two-step process: fabrication of amorphous CFBFA geopolymer and hydrothermal transformation of CFBFA-based geopolymer into kaliophilite. X-ray diffraction and SEM results demonstrated that CFBFA was successfully converted into kaliophilite with short prismatic crystals having size of ∼1 μm. Temperature-programmed desorption of CO2 anal. results indicated the presence of abundant weak, medium-strength and high-strength basic sites on the kaliophilite catalyst, which were resp. assigned to hydroxyl groups, K-O ion pairs, and O2- ions. When kaliophilite was used as a heterogeneous catalyst for biodiesel production, the highest biodiesel yield of 99.2% was obtained under transesterification conditions of 5 wt% catalyst concentration, methanol:canola oil mole ratio of 15:1, reaction temperature of 85 °C, and reaction time of 6 h. The kaliophilite catalyst could be easily recovered and reused for four cycles without significant deactivation. Further, a solid base catalysis mechanism for transesterification over kaliophilite catalyst was proposed.

Fuel published new progress about Acid number. 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

Xiao, Mengshi published the artcileSynthesis of Biodiesel from Waste Cooking Oil by One-step Esterification and Its Structural Characterization, COA of Formula: C23H46O2, the main research area is waste cooking oil biodiesel esterification.

The preparation of biodiesel as an alternative to petroleum-based fuels can expand the research and development of renewable energy, and is conducive to environmental protection. In this study, waste cooking oil (WCO) was used as raw material, and then pretreated, and then esterified with methanol under the action of sodium hydroxide catalyst to transformed into fatty acid Me ester (FAME) to prepare biodiesel. The reaction conditions were optimized by a three factorial Box-Behnken design through response surface methodol., when the reaction temperature was 70.1°C, the catalyst concentration was 1.013% and the molar ratio of methanol to oil was 6.5:1, the maximum FAME was up to 99.342%. Finally, the conversion of the triglyceride to the Me ester was confirmed by NMR (1H and 13C), and no unsaturation was present in the Me ester. The chem. composition of biodiesel was determined by GC-MS anal. There are mainly 11 FAME ranging from C16 to C24. The potential of WCO to prepare biodiesel was obtained.

Waste and Biomass Valorization published new progress about Acid number. 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, COA of Formula: C23H46O2.

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

Poulin, Jennifer published the artcileDirect Inlet Py-GC-MS analysis of cultural heritage materials, Quality Control of 929-77-1, the main research area is inlet PyGCMS analysis cultural heritage material.

Pyrolysis-gas chromatog.-mass spectrometry (Py-GC-MS) is an invaluable tool in the anal. of cultural heritage materials, particularly those containing complex polymerized components, whether natural or synthetic in origin. As the field embraces non-destructive and micro-sampling anal., it is not always possible to perform traditional flash Py-GC-MS due to the sample size requirements of the technique, which are typically in the range of 50-100 μg. The development of a pyrolysis method using a Thermal Separation Probe (Agilent Technologies Inc.) has allowed for splitless Py-GC-MS anal. to be carried out on much smaller samples. This technique makes use of a multi-mode inlet that is capable of rapidly heating to 450 °C. Because pyrolysis takes place within the inlet, the methodol. has been designated Direct Inlet Pyrolysis (DIP). Examples of synthetic reference materials, as well as case studies of archaeol. residues and a varnish from the 1960 s were employed to demonstrate this adapted anal. technique. The results obtained using DIP-GC-MS were compared to published thermal degradation data and higher-temperature flash Py-GC-MS chromatograms. The results indicate that DIP-GC-MS can characterize the organic fraction of complex polymeric samples. Differences in pyrolyzate formation and relative abundance occur for some polymers which are caused by lower and prolonged pyrolysis conditions. The technique can be performed in splitless mode with just a few micrograms of precious sample from cultural heritage objects, or by employing a low split if desired for more abundant reference materials. Like other Py-GC-MS methods, the online use of a reagent such as tetramethylammonium hydroxide (TMAH) allows for the derivatisation of polar functional groups.

Journal of Analytical and Applied Pyrolysis published new progress about Acetylation. 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Quality Control of 929-77-1.

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