Tag: M.W=150-200

Zaki, Ayman H. published the artcileSodium titanate nanotubes for efficient transesterification of oils into biodiesel, Product Details of C9H18O2, the main research area is sodium titanate nanotube oil biodiesel transesterification; Cooked oil; FAME; Heterogeneous catalyst; Kinetics; Mechanism; Modeling.

In this work, sodium titanate nanotubes were prepared by a hydrothermal method for 23 h at 160°C and characterized by high-resolution transmission electron microscopy (HRTEM), field emission SEM (FESEM), X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) methods, and Fourier transform IR (FT-IR) spectroscopy. The obtained nanotubes were used as catalysts in the transesterification of pure and cooked oils under different exptl. conditions (molar ratio, temperature, catalyst weight, and time). The catalyst showed high efficiency depending on the chosen conditions. The biodiesel yield was found to be 95.9% at 80°C for 2 h. The catalyst also showed high activity for cooked oil conversion, with yields of 96.0, 96.0, and 93.58% for the first, second, and third uses of oil, resp. The methanol was recycled and used in another transesterification experiment, and the biodiesel yield reached 91%. D. functional theory, Monte Carlo simulation, and mol. dynamics simulation were employed to clearly understand the transesterification mechanism. The transesterification reaction is represented by a pseudo-first-order kinetics model. [Figure not available: see fulltext.].

Environmental Science and Pollution Research 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

Alviso, Dario published the artcileChemical kinetic mechanism for diesel/biodiesel/ethanol surrogates using n-decane/methyl-decanoate/ethanol blends, Product Details of C11H22O2, the main research area is diesel biodiesel ethanol n decane methyl decanoate chem kinetic.

Abstract: Diesel-biodiesel-ethanol blends have been the focus of research in engines, as biodiesel and ethanol additives can lower pollutant emissions while maintaining diesel performance. To facilitate modeling and anal., those complex fuels are often substituted by simplified surrogate fuels, composed of only a few well-characterized mols., but displaying similar properties compared to the fuel that they represent. In this context, the objective of this paper is to develop and validate a new chem. reaction mechanism for diesel-biodiesel-ethanol surrogate fuels. n-Decane and methyl-decanoate (MD) were chosen as the diesel and biodiesel surrogates, resp., as they are frequently used in the literature. As the available reduced methyl-decanoate models do not reproduce the neg. temperature coefficient behavior found in auto-ignition delay experiments, the detailed MD model of Dievart et al. was reduced using DRGEP. This last model was then combined with the reduced n-decane model due to Chang et al. and that of ethanol due to Marinov. Validations are performed on 0D constant-volume auto-ignition by comparing auto-ignition delay times and 1D freely propagating gaseous premixed flame configurations by analyzing laminar flame speeds, using the original single component kinetic models, against the combined surrogate kinetic models, and exptl. results found in the literature. Laminar flame speeds of n-decane/methyl-decanoate/ethanol blends are also presented.

Journal of the Brazilian Society of Mechanical Sciences and Engineering 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, Product Details of C11H22O2.

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

De Bortoli, A. L. published the artcileModeling and simulation of a turbulent jet diffusion flame of a biodiesel surrogate composed of MD, n-Hept, MC and EtOH, Application In Synthesis of 110-42-9, the main research area is biodiesel surrogate turbulent jet diffusion flame modeling simulation.

The more properties of biodiesel one wishes to represent, the more complex the surrogate mixture becomes. Often the aim is to represent the H/C and O/C ratios and mol. weight using a small number of pure components. In this article, a turbulent jet diffusion flame of a biodiesel surrogate, composed of 50% Me Decanoate, 40% n-heptane, 9% Me crotonate and 1% ethanol is modeled and simulated. The strategy used is to apply the Directed Relation Graph technique for a first reduction, and Layerless Neural Network to define the main chain and obtain a skeletal mechanism. The results obtained for temperature and mass fractions of CO2, CO and H2O agree reasonably with literature data for a mechanism of 147 reactions and 45 species. The small number of species facilitates the simulation of the coupling between turbulence and chem. kinetics, a desirable feature of reduced mechanisms.

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, Application In Synthesis of 110-42-9.

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

Seniorita, Latifa published the artcilePrediction of solidification behavior of biodiesel containing monoacylglycerols above the solubility limit, Related Products of esters-buliding-blocks, the main research area is biodiesel monoacylglycerol solidification solubility.

Monoacylglycerols (MAGs) are typical impurities in biodiesel (fatty acid Me esters, FAMEs) and are often the cause of solid precipitation because of their high m.ps. In this study, the liquidus temperature of biodiesel, below which solidification of biodiesel components can occur, was measured by differential scanning calorimetry or visual observation, and was predicted by thermodn. models. First, the solubility limit of MAGs, defined as the total MAG content above which MAGs can solidify before FAMEs, was found to be about 0.25 wt% for coconut Me esters and about 0.5 wt% for palm Me esters and rapeseed Me esters. For biodiesel containing MAGs above the solubility limit, the compound formation (CF) model showed good agreement with the exptl. determined liquidus temperatures This thermodn. model assumed different types of MAGs solidifying simultaneously while forming mol. compounds However, within the range of the total MAG content of actual biodiesel (typically less than 0.7 wt%), the number of fitting parameters in the CF model was excessive. This led to the use of a simplified version of the CF model with only one parameter, which still fitted the exptl. results well. One parameter value was determined for biodiesel from one feedstock, allowing the liquidus temperature of biodiesel from a known feedstock to be predicted based only on the total MAG content, even for biodiesel containing diacylglycerols in addition to MAGs.

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, Related Products of esters-buliding-blocks.

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

Bian, Yuhang published the artcileBiodiesel Production Over Esterification Catalyzed by a Novel Poly(Acidic Ionic Liquid)s, Formula: C11H22O2, the main research area is biodiesel esterification catalyzed polyacidic ionic liquid.

High biodiesel yield was obtained by using poly (acidic ionic liquid)s. The ionic liquid monomer was synthesized through quaternary ammonization on the N,N-Dimethyl-3-aminophenol with 1,3-propanesultone and p-Hydroxybenzenesulfonic acid. The IL monomer and formaldehyde was used to synthesize the poly(acidic ionic liquid)s. Several physicochem. techniques were used in the characterization of this poly(acidic ionic liquid)s. The esterification of oleic acid and methanol was used to investigate the catalytic activity of the synthesized catalyst. In order to obtain the maximum yield, four parameters (reaction time, amount of methanol, temperature and catalyst amount) were considered. In the optimum condition (5 wt% catalyst amount, 9:1 methanol/oleic acid ratio at 80°C for 1.5 h), the ester yield was up to 93.3%. After four cycles of use, the catalytic activity of FCPIL did not exhibit significant decline.

Catalysis Letters 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, Formula: C11H22O2.

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

Bian, Yuhang published the artcileBiodiesel Production Over Esterification Catalyzed by a Novel Poly(Acidic Ionic Liquid)s, Application In Synthesis of 111-11-5, the main research area is biodiesel esterification catalyzed polyacidic ionic liquid.

High biodiesel yield was obtained by using poly (acidic ionic liquid)s. The ionic liquid monomer was synthesized through quaternary ammonization on the N,N-Dimethyl-3-aminophenol with 1,3-propanesultone and p-Hydroxybenzenesulfonic acid. The IL monomer and formaldehyde was used to synthesize the poly(acidic ionic liquid)s. Several physicochem. techniques were used in the characterization of this poly(acidic ionic liquid)s. The esterification of oleic acid and methanol was used to investigate the catalytic activity of the synthesized catalyst. In order to obtain the maximum yield, four parameters (reaction time, amount of methanol, temperature and catalyst amount) were considered. In the optimum condition (5 wt% catalyst amount, 9:1 methanol/oleic acid ratio at 80°C for 1.5 h), the ester yield was up to 93.3%. After four cycles of use, the catalytic activity of FCPIL did not exhibit significant decline.

Catalysis Letters 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, Application In Synthesis of 111-11-5.

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

Zhou, Yi published the artcileChemical kinetic modeling study of methyl esters oxidation: Improvement on the prediction of early CO2 formation, Related Products of esters-buliding-blocks, the main research area is kinetics model biodiesel methyl ester oxidation carbon dioxide.

The early CO2 formation is a characteristic for the Me esters group of biodiesel. A new reaction pathway was added to skeletal Me esters mechanism for improving the prediction of early CO2 formation. The Me decanoate, Me 9-decenoate, Me 5-decenoate and Me stearate sub-mechanisms with added reaction pathway were optimized by adjusting reaction rate constants for more accurate prediction. Based on decoupling methodol., a new skeletal mechanism for Me butanoate was constructed by integrating detailed H2/CO/C1 sub-mechanism, reduced C2-C3 sub-mechanism and Me butanoate sub-mechanism. These improved mechanisms were validated well in a shock tube for ignition delay times and in a jet-stirred reactor for major species concentrations over wide operating conditions, resp. When compared to available mechanism in the literature, the present mechanism has good improvement for the prediction of early CO2 formation. Also, the effect of newly added reactions on ignition delay times was analyzed by sensitivity anal. method. Added reaction of Fuel Radical = ME2J + Short Chain Hydrocarbon mainly causes the influence on ignition delay time at high temperature, and decrease the reactivity of oxidation of fuel radical. The reaction of OCHO + M<=>H + CO2 + M dominates the early CO2 formation, and makes less contribution to production of CO2 with higher temperature The improved mechanisms, which consist of Me esters from a relatively short to long C chain, have a good performance for the prediction of early CO2 formation.

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, Related Products of esters-buliding-blocks.

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

Soudagar, Manzoore Elahi M. published the artcileEffect of Sr@ZnO nanoparticles and Ricinus communis biodiesel-diesel fuel blends on modified CRDI diesel engine characteristics, Category: esters-buliding-blocks, the main research area is strontium zinc oxide nanoparticle Ricinus communis CRDI diesel engine.

The current study aims to evaluate the performance and emission characteristics of a modified common rail direct injection (CRDI) diesel engine fueled by Ricinus communis biodiesel (RCME20), diesel (80%), and their blends with strontium-zinc oxide (Sr@ZnO) nanoparticle additives. The Sr@ZnO nanoparticles were synthesized using aqueous precipitation of zinc acetate dehydrate and strontium nitrate. Several characterization tests were performed to study the morphol. and content of synthesized Sr@ZnO nanoparticles. The Sr@ZnO nanoparticles were steadily blended with RCME20-diesel fuel blend in mass fractions of 30, 60 and 90 ppm using a magnetic stirrer and ultrasonication process. For a long term stability of nanoparticles, Cetyl trimethylammonium bromide (CTAB) surfactant was added. The physicochem. properties of the fuel blends were measured using ASTM standards The CRDI engine was operated at two compression ratios 17.5 and 19.5, 1000 bar injection pressure, 23.5°BTDC injection timing and constant speed. For enhanced swirl and turbulence, and improved spray quality lateral swirl combustion chamber and 6-hole fuel injector were used. The compression ratio of 19.5 and 60 ppm of Sr@ZnO nano-additives showed overall enhancement in engine characteristics compared to RCME20 fuel. The engine characteristics such as BTE, HRR and cylinder pressure increased by 20.83%, 24.35% and 9.55%, and BSFC, ID, CD, smoke, CO, HC and CO2 reduced by 20.07%, 20.64%, 14.5%, 27.90%, 47.63%, 26.81%, and 34.9%, while slight increase in NOx for all nanofuel blends was observed

Energy (Oxford, United Kingdom) 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, Category: esters-buliding-blocks.

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

Soudagar, Manzoore Elahi M. published the artcileEffect of Sr@ZnO nanoparticles and Ricinus communis biodiesel-diesel fuel blends on modified CRDI diesel engine characteristics, Application In Synthesis of 111-11-5, the main research area is strontium zinc oxide nanoparticle Ricinus communis CRDI diesel engine.

The current study aims to evaluate the performance and emission characteristics of a modified common rail direct injection (CRDI) diesel engine fueled by Ricinus communis biodiesel (RCME20), diesel (80%), and their blends with strontium-zinc oxide (Sr@ZnO) nanoparticle additives. The Sr@ZnO nanoparticles were synthesized using aqueous precipitation of zinc acetate dehydrate and strontium nitrate. Several characterization tests were performed to study the morphol. and content of synthesized Sr@ZnO nanoparticles. The Sr@ZnO nanoparticles were steadily blended with RCME20-diesel fuel blend in mass fractions of 30, 60 and 90 ppm using a magnetic stirrer and ultrasonication process. For a long term stability of nanoparticles, Cetyl trimethylammonium bromide (CTAB) surfactant was added. The physicochem. properties of the fuel blends were measured using ASTM standards The CRDI engine was operated at two compression ratios 17.5 and 19.5, 1000 bar injection pressure, 23.5°BTDC injection timing and constant speed. For enhanced swirl and turbulence, and improved spray quality lateral swirl combustion chamber and 6-hole fuel injector were used. The compression ratio of 19.5 and 60 ppm of Sr@ZnO nano-additives showed overall enhancement in engine characteristics compared to RCME20 fuel. The engine characteristics such as BTE, HRR and cylinder pressure increased by 20.83%, 24.35% and 9.55%, and BSFC, ID, CD, smoke, CO, HC and CO2 reduced by 20.07%, 20.64%, 14.5%, 27.90%, 47.63%, 26.81%, and 34.9%, while slight increase in NOx for all nanofuel blends was observed

Energy (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, Application In Synthesis of 111-11-5.

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

Li, Han published the artcileTowards developing high-fidelity yet compact skeletal mechanisms: An effective, efficient and expertise-free strategy for systematic mechanism reduction, SDS of cas: 110-42-9, the main research area is dodecane skeletal mechanism combustion computational fluid dynamics.

This study explored the potential of integrating reduction methods with different features for systematic mechanism reduction Based on our two recently developed/optimized reduction methods, sensitivity anal. method and unimportant reaction elimination, a generalized strategy for systematic reduction of large detailed mechanisms was proposed. This strategy was firstly used to reduce the detailed mechanism for n-dodecane containing 2,115 species. A compact skeletal mechanism with 150 species was obtained, and close agreement with the detailed mechanism was achieved. Next, the detailed mechanism for a three-component biodiesel surrogate with 3,299 species was successfully reduced to a skeletal one with 179 species. Extensive validations were performed to show the high fidelity of the obtained skeletal mechanism. After demonstrating the effectiveness and reduction capability of the proposed strategy, its efficient and expertise-free features were elaborated. This strategy not only greatly lowers the threshold for reducing large detailed mechanisms, but also significantly saves the computational cost and human time effort in mechanism reduction process, while exhibiting satisfactory reduction capability to generate high-fidelity yet compact skeletal mechanisms.

Chemical Engineering Journal (Amsterdam, Netherlands) 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