Category: 929-77-1

Rajkumar, Sundararajan published the artcileIntegration of artificial neural network, multi-objective genetic algorithm and phenomenological combustion modelling for effective operation of biodiesel blends in an automotive engine, Product Details of C23H46O2, the main research area is biodiesel blend artificial neural network phenomenol combustion.

Biodiesel usage is practically restricted as a blended supplement with fossil diesel. In the current study, the authors have attempted to arrive at the optimal biodiesel blend concentrations for an automotive engine. Here, the artificial neural network and genetic algorithm are coupled with phenomenol. combustion modeling for the efficient operation of biodiesel blends. The engine experiments are conducted with diesel and diesel-biodiesel blends namely jatropha, and karanja consisting of 120 data points each. This set of data are used for the ANN development and validation. A multi-layer perceptron network is trained by the exptl. data for predicting the engine parameters. The Nash Sutcliffe coefficient of efficiency values for the ANN predicted parameters are close to 1, indicating a close prediction. The ANN model predicted the engine output parameters with low values of mean square error, mean square relative error, mean absolute percentage error and standard error of prediction. Optimum values of biodiesel blend fraction, engine speed, brake mean effective pressure, injection pressure and timing are obtained using a multi-objective genetic algorithm. The optimized blend concentration is found to be ∼20% and ∼40% for satisfying the different objectives concerning the overall engine characteristics. Finally, the outputs for the optimized parameters are compared to the validated multi-zone model predictions within the maximum error of ∼3% and 7.9% for performance and emission parameters resp.

Energy (Oxford, United Kingdom) published new progress about Algorithm. 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

Roggatz, Christina C. published the artcileModelling Antifouling compounds of Macroalgal Holobionts in Current and Future pH Conditions, Application of Methyl docosanoate, the main research area is pH ocean acidification antifouling compound Rhodophyta Chlorophyta; Macroalgae; and macro-colonizers; antifouling; chemical communication; climate change; micro; ocean acidification.

Marine macroalgae are important ecosystem engineers in marine coastal habitats. Macroalgae can be neg. impacted through excessive colonization by harmful bacteria, fungi, microalgae, and macro-colonisers and thus employ a range of chem. compounds to minimize such colonization. Recent research suggests that environmental pH conditions potentially impact the functionality of such chem. compounds Here we predict if and how naturally fluctuating pH conditions and future conditions caused by ocean acidification will affect macroalgal (antifouling) compounds and thereby potentially alter the chem. defense mediated by these compounds We defined the relevant ecol. pH range, analyzed and scored the pH-sensitivity of compounds with antifouling functions based on their modelled chem. properties before assessing their distribution across the phylogenetic macroalgal groups, and the proportion of sensitive compounds for each investigated function. For some key compounds, we also predicted in detail how the associated ecol. function may develop across the pH range. The majority of compounds were unaffected by pH, but compounds containing phenolic and amine groups were found to be particularly sensitive to pH. Future pH changes due to predicted average open ocean acidification pH were found to have little effect. Compounds from Rhodophyta were mainly pH-stable. However, key algal species amongst Phaeophyceae and Chlorophyta were found to rely on highly pH-sensitive compounds for their chem. defense against harmful bacteria, microalgae, fungi, and biofouling by macro-organisms. All quorum sensing disruptive compounds were found the be unaffected by pH, but the other ecol. functions were all conveyed in part by pH-sensitive compounds For some ecol. keystone species, all of their compounds mediating defense functions were found to be pH-sensitive based on our calculations, which may not only affect the health and fitness of the host alga resulting in host breakdown but also alter the associated ecol. interactions of the macroalgal holobiont with micro and macrocolonisers, eventually causing ecosystem restructuring and the functions (e.g. habitat provision) provided by macroalgal hosts. Our study investigates a question of fundamental importance because environments with fluctuating or changing pH are common and apply not only to coastal marine habitats and estuaries but also to freshwater environments or terrestrial systems that are subject to acid rain. Hence, while warranting exptl. validation, this investigation with macroalgae as model organisms can serve as a basis for future investigations in other aquatic or even terrestrial systems.

Journal of Chemical Ecology published new progress about Acid rain. 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

Ma, Pan published the artcileMARS 2: A computational tool to resolve and extract features from large-scale GC-MS datasets, HPLC of Formula: 929-77-1, the main research area is MARS computational tool resolve extract GC MS dataset.

MARS (MS-Assisted Resolution of Signal) is a computational tool for feature extraction using multivariate curve resolution approaches. However, it is time-consuming for large-scale GC-MS datasets and sensitive to the component number estimation Here we introduce MARS 2 with substantial improvements to overcome these limitations. Reverse matching (RM) and principal component optimization-iterative transformation target factor anal. (PCO-ITTFA) are developed to reduce the time for locating peak regions and determine the correct component number for resolving optimal features. The greatest strength of MARS 2 is “”resolve once, extract anywhere””. It means that mass spectra of each component were needed to resolve from only one profile. Then, chromatog. features can be extracted automatically from hundreds of other profiles with the assistance from the resolved mass spectra. To evaluate its performance, plasma datasets and fatty acid standard mixtures were processed by MARS 2, AMDIS, ADAP-GC 3.0, eRah and MS-DIAL. Amino acid standard mixtures were analyzed by MARS 2 for calibration. Results show that MARS 2 can achieve better performance in both qual. and quant. anal.

Chemometrics and Intelligent Laboratory Systems published new progress about Extraction. 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

Krishnamoorthi, M. published the artcileExperimental, numerical and exergy analyses of a dual fuel combustion engine fuelled with syngas and biodiesel/diesel blends, HPLC of Formula: 929-77-1, the main research area is syngas biodiesel diesel combustion engine exergy simulation modeling.

This work investigates the effects of addition of syngas and biodiesel on a reactivity controlled compression ignition (RCCI) engine fuelled with diesel. SEM (SEM) of exhaust particulate matter has been done to obtain particulate matter (PM) morphol. Energy and exergy analyses have been performed to observe energy and availability shares, and to provide directions for the energy recovery systems. Closed cycle combustion simulations have been performed to complement the exptl. results and for an improved understanding of in-cylinder dynamics. Based on the initial study, used cooking oil based biodiesel blend (B20, 20% biodiesel) has been chosen in experiments The optimal operating conditions for syngas/diesel and syngas/B20 in RCCI mode for different operating parameters have been investigated. Injection pressure, injection timing and pre-injection mass ratio have been modified to get improved combustion efficiency at mid-load. Syngas/diesel mode with an injection timing of 19° before top dead center (bTDC) shows slightly higher brake thermal efficiency (BTE) with 22% and 77% lower oxides of nitrogen (NOx) and PM resp. as compared to conventional diesel combustion. In syngas/B20 mode, a maximum BTE of 24% has been observed for the case with a pre-injection at 50° bTDC with 30% mass fraction and 18° bTDC main injection timing. Syngas/diesel shows a reduction in primary soot particle count by about 67% and contains larger aggregates as compared to neat diesel.

Applied Energy published new progress about Aggregates. 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

Murti, Rihastiwi Setiya published the artcileThe effect of palm oil sulfatation time on fatliquor quality and finished leather product, SDS of cas: 929-77-1, the main research area is palm oil sulfatation fatliquor finished leather product quality.

Fatliquoring process is an important process in leather manufacturing as the process affects the properties of leather such as softness, oil content, tensile strength, elongation at break and tear strength. In this study, sulfated oil was made from palm oil by sulfatation process using 25% sulfuric acid (98% content) with variation of sulfatation times (0, 1, 2, 3, and 4 h). The study aimed to know the influence of sulfatation time on the production of sulfated oil to the quality of oil and finish leather produced. The results showed the sulfatation time affected the quality of sulfated oil and tanned leather. The optimum time for sulfatation process of palm oil was three hours. The quality of sulfated oil had water content of 6.47%, pH of 8, oil content of 81.28%, saponification number of 192.74%, total alkalinity of 0.25%, ash content of 2.77% and SO3 levels bond of 7.68%. The quality of finished leather were tensile strength of 286.50 N/mm2, elongation at break of 63.33%, softness of 3.92 mm and oil content of 10.15%.

Journal of the American Leather Chemists Association published new progress about Alkalinity. 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

Ali, Ismat H. published the artcileAdsorption and corrosion inhibition behaviour of oil extracted from Moringa peregrina leaves for carbon steel in acidic media: experimental and computational studies, Related Products of esters-buliding-blocks, the main research area is Moringa leave carbon steel adsorption corrosion inhibition.

The current research aimed at investigating the potential corrosion inhibitory effect of essential oil extracted from Moringa peregrina leaves on carbon steel in acidic conditions. Gas chromatog. (GC) and scanning electron microscope (SEM) were employed for studying the composition of the inhibitor and surface morphol. changes of CS samples. Different exptl. techniques such as chem., electrochem. and surface characterization techniques were utilized for carbon steel (CS) immersed in 1.0 M HCl solution Exptl. observations suggest that through phys. and chem. interactions, the inhibitor mols. form a stable layer on steel surface. The nature of adsorption of the investigated inhibitor onto the carbon steel surface obeyed the Langmuir isotherm model. Moreover, the electrochem. results revealed that the investigated inhibitor acts as a mixed-type inhibitor. D. function theory (DFT) calculations and mol. dynamic (MD) simulations were utilized to gain an insight into the possible interactions between the carbon steel surface and the inhibitor mol. mainly 9-Octadecadienoic acid (Z) present in the essential oil.

International Journal of Electrochemical Science published new progress about Adsorption. 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

Palakkal, Leena published the artcileCorrosion inhibition properties of the extracts of Hemigraphis colorata against mild steel in acidic media, Application of Methyl docosanoate, the main research area is mild steel Hemigraphis colorata hydrochloric acid corrosion inhibition.

Corrosion inhibition activity of the methanolic extracts of the leaf and stem of the plant Hemigraphis colorata against mild in 1M HCl were studied by weight loss methods at different temperatures The chem. components present in the extracts were analyzed by GC-MS methods. From the results obtained it was concluded that the extracts possess good inhibition efficiencies. The efficiencies were found to increase with inhibitor concentration and decrease with increase in temperature Evaluation of thermodn. parameters reveals that the adsorption of extracts on the mild steel surface obeys Langmuir adsorption isotherm. The mechanism of adsorption was found to involve a combination of physisorption and chemisorption. Quantum chem. studies on the major components identified in the extract by GC-MS method is in agreement with the exptl. observations.

Research Journal of Chemistry and Environment published new progress about Adsorption. 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

Naeem, Abdul published the artcileBiodiesel production from waste cooking oil employing natural bentonite supported heterogeneous catalyst: Waste to biodiesel, HPLC of Formula: 929-77-1, the main research area is bentonite biodiesel waste cooking oil heterogeneous catalyst.

This work describes the practicability of utilizing bentonite clay as a cheap and raw support for heterogeneous catalyst development. In the current research, ammonium persulfate (APS) impregnated bentonite heterogeneous catalyst was designed for the conversion of waste cooking oil to biodiesel. The fabricated catalyst was analyzed by various instrumental techniques (FTIR, TGA, BET, SEM, XRD, and EDX) to study its various physiochem. properties. It was identified that the clay supported heterogeneous catalyst executed an excellent activity for waste cooking oil conversion as providing maximum biodiesel yield of 93% at optimal reaction conditions (reaction temperature 75°C, oil/methanol molar ratio, 1:10; catalyst amount, 2.5 wt%; stirring rate, 600-rpm in 3.5 h reaction time). Gas chromatog. mass spectroscopy (GCMS) anal. confirms the successful conversion to biodiesel. Similarly, the various physiochem. characteristics of the synthesized biodiesel meet the international standard of American (ASTM6751) and European Union (EU-14214). Moreover, the designed acid catalyst showed catalytic activity for up to eight consecutive runs demonstrate its good reusability.

Korean Journal of Chemical Engineering published new progress about Adsorption. 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

Nath, Biswajit published the artcileHighly efficient renewable heterogeneous base catalyst derived from waste Sesamum indicum plant for synthesis of biodiesel, COA of Formula: C23H46O2, the main research area is Sesamum biodiesel synthesis heterogeneous catalyst.

Waste Sesamum indicum plant derived heterogeneous catalyst was utilized for the first time for biodiesel synthesis from sunflower oil. The derived catalyst was characterized by using Powder XRD, FT-IR, BET, TGA, XRF, AAS, XPS, SEM-EDX and TEM, and the characterization revealed the presence of Na, K, Ca, Mg, Fe, Mn, Zn, Si, Sr and Cl with high percentage of K (29.64 wt %) and Ca (33.80 wt %) as oxides and carbonates. The catalyst with a moderate surface area of 3.66 m2 g-1 exhibited excellent catalytic activity producing a yield of 98.9% biodiesel under the optimized conditions of 12:1 methanol to oil molar ratio and catalyst loading of 7 wt % at the reaction temperature of 65°C in a short reaction time of only 40 min. The catalyst could be reused up to the 3rd cycle of reaction with the yield of 94.2% biodiesel. The characterization of biodiesel was done by using FT-IR, NMR, and GC-MS techniques. The fuel property of produced biodiesel meets the prescribed limits of international standard The prepared catalyst is easy to handle, reusable, and found to be highly efficient green catalyst that could help in reduction of biodiesel cost. Thus, the catalyst can be recommended as a potential candidate for cost-effective biodiesel production at a large scale.

Renewable Energy published new progress about Adsorption. 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

Khan, Ihtisham Wali published the artcileBiodiesel production by valorizing waste non-edible wild olive oil using heterogeneous base catalyst: Process optimization and cost estimation, Related Products of esters-buliding-blocks, the main research area is biodiesel valorizing waste wild olive oil heterogeneous base catalyst.

The current research investigates sustainable biodiesel production from non-edible wild olive oil via novel Na/SiO2/TiO2 heterogeneous catalyst. The catalyst was synthesized by Sol-Gel and wet impregnation method. Furthermore, the designed catalyst was evaluated by various spectroscopic techniques like SEM, EDX, XPS, FTIR, BET and XRD. The impact of various influencing parameters such as catalyst loading, reaction temperature, oil/methanol molar ratio and reaction time were scrutinized and the maximum 97% yield was achieved at the reaction conditions of 1:20 WOSO/MeOH molar ratio, 9 wt% catalyst loading at 70°C and 120 min of reaction time. The synthesized biodiesel was confirmed from GC-MS anal., whereas the various physiochem. properties of synthesized biodiesel were explored by ASTMD 5761 and EN 1404 methods. The plausible reaction mechanism of Na/SiO2/TiO2 catalyzed WOSO was also proposed. Finally, the cost estimation of the designed catalyst investigates its com. viability for low cost biodiesel production using non-edible WOSO feedstock.

Fuel published new progress about Adsorption. 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