Category: esters-buliding-blocks

Islam, Muhammad Ghayas Ul published the artcileBiodiesel production from wild olive oil using TPA decorated Cr-Al acid heterogeneous catalyst, COA of Formula: C11H22O2, the main research area is tungstophosphonic acid chromium aluminum heterogeneous catalyst olive oil biodiesel.

In the present work, wild olive (Olea oleaster) plant oil was chosen as a hopeful feedstock for efficient biodiesel production Mixed oxides of aluminum and chromium were modified with different amounts (10-40 weight%) of 12-tungstophosphonic acid (TPA), used for biodiesel production from low cost local wild olive oil (WOO). Moreover, the physicochem. characteristics of the synthesized catalysts were elaborated with different anal. techniques such as XRD, SEM, EDX, BET. The biodiesel reaction was carried out in a single step via trans-esterification reaction using TPA impregnated Cr-Al mixed oxide catalyst. The maximum 93% biodiesel yield was obtained under the optimized conditions: oil/methanol molar ratio 1:21, reaction temperature 80°C, catalyst dosage 4 wt% and reaction times 5 h with stirring speed of 600 rpm. Interestingly, the reusability experiments showed that the synthesized catalyst sustained remarkable stability and reusability up to 5 runs in the biodiesel production from wild olive oil. Furthermore, the synthesized biodiesel completely complied with international standards

Chemical Engineering Research and Design published new progress about Acid number. 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, COA of Formula: C11H22O2.

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

Islam, Muhammad Ghayas Ul published the artcileBiodiesel production from wild olive oil using TPA decorated Cr-Al acid heterogeneous catalyst, Name: Methyl octanoate, the main research area is tungstophosphonic acid chromium aluminum heterogeneous catalyst olive oil biodiesel.

In the present work, wild olive (Olea oleaster) plant oil was chosen as a hopeful feedstock for efficient biodiesel production Mixed oxides of aluminum and chromium were modified with different amounts (10-40 weight%) of 12-tungstophosphonic acid (TPA), used for biodiesel production from low cost local wild olive oil (WOO). Moreover, the physicochem. characteristics of the synthesized catalysts were elaborated with different anal. techniques such as XRD, SEM, EDX, BET. The biodiesel reaction was carried out in a single step via trans-esterification reaction using TPA impregnated Cr-Al mixed oxide catalyst. The maximum 93% biodiesel yield was obtained under the optimized conditions: oil/methanol molar ratio 1:21, reaction temperature 80°C, catalyst dosage 4 wt% and reaction times 5 h with stirring speed of 600 rpm. Interestingly, the reusability experiments showed that the synthesized catalyst sustained remarkable stability and reusability up to 5 runs in the biodiesel production from wild olive oil. Furthermore, the synthesized biodiesel completely complied with international standards

Chemical Engineering Research and Design published new progress about Acid number. 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

Wei, Daiyue published the artcileImproving the lipid oxidation in pork fat processing for Chi-aroma Baijiu through pretreatments and segmented soaking with liquor, Related Products of esters-buliding-blocks, the main research area is lipid oxidation pork fat liquor segmented soaking.

This study aimed to explore an efficient method to prepare ageing pork fat used as catalyst in the production of Chi-aroma Baijiu. Results showed that boiling after warm water treatment was the best pretreatment method, which could eliminate off-odor greatly by decreasing aldehydes, fusels, esters, alkanes, alkenes and aromatics in raw pork fat, and would significantly (p < 0.05) improve TBARS (2-thiobarbituric acid-reactive substances) value and fatty acids dissolution during following 3-mo soaking. Compared to pure alc. solution, basic liquor mixed with fat oil as soaking solution could significantly (p < 0.05) increase acid value. Soaking pork fat in high-alc.-volume (500 mL ethanol/L) and then low-alc.-volume (300 mL ethanol/L) basic liquor subsequently, could accelerate the release of fatty acids into basic liquor. Segmented soaking by adding fat oil at the 6th month following 5 mo basic liquor soaking was the most efficient method, in which both TBARS value and acid value were increased, up to 2.89 ± 0.37 mg malondialdehyde (MDA)/kg and 4.97 ± 0.04 mg KOH/g, resp., and PUFA (polyunsaturated fatty acids)/SFA (saturated fatty acids) was lowest (0.44 ± 0.00). It provides potential strategies to accelerate the ageing process of pork fat for Chi-aroma Baijiu industry. LWT--Food Science and Technology published new progress about Acid number. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Related Products of esters-buliding-blocks.

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

Adama, K. K. published the artcileComponent distribution associated with phase separation and purification of tropical almond biodiesel at different temperatures, Recommanded Product: Methyl decanoate, 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. 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

Adama, K. K. published the artcileComponent distribution associated with phase separation and purification of tropical almond biodiesel at different temperatures, Safety of Methyl octanoate, 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. 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

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, Name: Methyl decanoate, 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. 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, Name: Methyl decanoate.

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