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1963 articles for “Octadec-9-enoic acid methyl esters” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Drying and Particle Size Characteristics of Danta (Nesogordonia papavereria) and Hard Cross (Vitex doniana) Wood Sawdusts at Different Temperatures
Abstract: The drying and particle size characterization of Danta (Nesogordonia papavereria) and Hard Cross (Vitex doniana) hardwood sawdusts were investigated at temperatures 80 ºC, 90 ºC and 105 . The experimental drying data were modeled using eighteen existing drying models. The results showed that the modified Henderson and Pabis model offered the best fit to the drying curves of Danta and Hard Cross sawdusts. The experimental data obtained from the particle …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 7, Issue 1, 2016 · pp. 30–38 Read article
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Preparation of Biodiesel from Karanja Oil using Homogeneous and Heterogeneous Catalyst
Abstract: In India, diesel consumption is increasing at an alarming rate which is increasing the import bill and the problems related to environment pollution. Biodiesel (BD) from non-edible oil like karanja is attractive feed stock for diesel engine. Due to high acid value of karanja oil (KO), a two-step process is necessary for BD production using homogeneous catalyst. In present study, BD was produced from KO by transesterification process using homogeneous …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 7, Issue 3, 2016 · pp. 23–37 Read article
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Production of Cellulosic Biofuel by using Different Pretreatment Process
Abstract: The production of Biofuels is increased by 20% since 2017. Cellulosic biomass is natural and abundantly available material for biofuel production in India. The major source of Biofuel is lignocellulosic waste and the most non-feeding productive crop is cotton in India. Bioethanol production can be achieved using the cotton stalk as raw material because cotton stalk contains a high amount of cellulose (>50%). Among the all process pretreatment process is …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 11, Issue 3, 2020 · pp. 33–37 Read article
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Catalytic Trends of OsO4 for the Taurine-Bromamine-T Redox System: Kinetic and Mechanistic Chemistry of Catalyzed and Uncatalyzed Reactions
Abstract: Taurine (2-ethane aminosulfonic acid) facilitates as a building block for protein synthesis, also possessing various other vital biological functions. Literature survey revealed that there was no report available on the oxidation of taurine with any oxidants from its kinetic, mechanistic and catalytic aspects. A detailed comparative mechanistic study of its Os(VIII) catalyzed and uncatalyzed oxidation kinetics by bromamine-T (BAT) in NaOH medium at 313 K revealed the rate law to …
Published in Journal of Catalyst & Catalysis · Vol. 4, Issue 3, 2017 · pp. 5–19 Read article
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Green Synthesis of Biologically Active 2, 4, 5- Trisubstituted Imidazoles Catalyzed by Large Pore Zeolite H-BEA through Lophine MCRs
Abstract: 2, 4, 5-triphenyl-1(H)-imidazoles (popularly known as Lophine derivatives) are well known heterocyclic compounds and find significant diversified applications, not only in the area of medicinal chemistry as biologically active drug-like molecules, but also in the other advanced research areas, such as fluorescence labelling, biological imaging and chromospheres for non-linear optic system. In the present endeavour, a green synthesis of Lophine derivatives via multi-component reaction is carried out using benzil/benzoin, substituted …
Published in Journal of Catalyst & Catalysis · Vol. 4, Issue 3, 2017 · pp. 20–36 Read article
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An Efficient Synthesis of Annulated Novel Dihydropyridine Derivatives using Zeolite H-BEA and Zeolite BEA-SO3H
Abstract: Modified zeolite (zeolite BEA-SO3H) was synthesized with intent to improve the surface area and Si/Al ratio by loading chlorosulphonic acid onto zeolite H-BEA. Parent and modified zeolite were characterized by variety of characterization techniques such as, ICP, FT-IR, XRD, TGA, NH3-TPD,BET surface area, etc. The catalytic applications of parent and modified zeolite H-BEA were demonstrated through the synthesis of novel quinoline and benzoquinoline substituted dihydropyridines (DHPs) via one pot Hantzsch …
Published in Journal of Catalyst & Catalysis · Vol. 1, Issue 2, 2014 · pp. 1–12 Read article
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Synthesis, Characterization of Mesoporous Zeolite BEA and Its Application in Multicomponent Reactions
Abstract: Strongly acidic mesoporous zeolite beta (MZB or Beta/MCM-41composite) with bimodal pore structure and stepwise distributed acidity has been synthesized by novel route using zeolite BEA as silica-alumina source. The material was characterized by various techniques. Powder XRD showed the existence of well-structured microphase zeolite Beta and mesophase MCM-41 in the composite materials. The performance of the composite material as a catalyst was investigated for the synthesis of various biologically active …
Published in Journal of Catalyst & Catalysis · Vol. 1, Issue 3, 2014 · pp. 25–45 Read article
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Inhibitors for steel implements
Abstract: Oil and gas industries use corrosion inhibitors made of active inhibitor intermediate, carboxylic acid, demulsifier and surfactant in aromatic solvent, and alcohol. High pressure and high temperature oil well flow lines are made of steel pipes. These pipes are prone to corrosion from gaseous contamination, oil quality, flow rate, developed shear stress of turbulence, pump spar techniques, etc. Carbon dioxide to carbolic acid conversion at below 100oC temperature appears to …
Published in Journal of Catalyst & Catalysis · Vol. 6, Issue 2, 2019 · pp. 1–11 Read article
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A Novel Method for the Preparation of Eco-enzymes
Abstract: A novel method for the production of an eco-enzyme has been developed. The eco-enzyme prepared is a complex solution produced by fermentation of fresh kitchen waste (fruit and vegetable dregs), sugar (brown sugar, jaggery or molasses sugar) and water. It is dark brown and has a strong sweet sour fermented scent. Eco enzyme is a multipurpose liquid and its applications cover household, agriculture, animal husbandry etc.The enzyme prepared can be …
Published in Journal of Catalyst & Catalysis · Vol. 7, Issue 1, 2020 · pp. 6–12 Read article
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Adsorption of Congo Red Dye in Aqueous Solution using Moringa oleifera Seed Powder
Abstract: The feasibility of using Moringa oleifera seed for the Congo red adsorption from aqueous solution has been investigated as a low cost and an eco-friendly adsorbent. Adsorption studies were conducted on a batch process, to study the effects of contact time, initial dye concentration and adsorbent dosage. Maximum colour removal was observed at higher adsorbent dosage. The present dye removal decreased from 95% to 81% as the dye concentration has …
Published in Journal of Catalyst & Catalysis · Vol. 8, Issue 1, 2021 · pp. 8–18 Read article
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Enzymes used in Alcohol Fermentation
Abstract: Fermentation is the process that uses enzymes to cause chemical reactions in biomass feedstocks. In biochemistry, it is defined as the extraction of energy from carbohydrates in the absence of oxygen. The science of fermentation is known as zymology. Cellular respiration is the process in which a carbohydrate, like starch or sugar, is converted into an alcohol or an enzyme by an organism. Fermentation is a process in which yeast …
Published in Journal of Catalyst & Catalysis · Vol. 8, Issue 3, 2021 · pp. 15–21 Read article
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Catalysed Biofuels Using Vegetable Oils and Animal Fats
Abstract: It is a first to use biochemical modification of fats to create fuel for transport. The chemical transformation is required to produce products that are more useful and have qualities similar to those of crude oil-derived fuels. Biodiesel (a combination of methyl esters produced by transesterification) and green diesel are the two forms of fuels discussed (paraffins produced by hydrogenation of oils). Three bio-lubricant synthesis strategies are also discussed. Biofuels …
Published in Journal of Catalyst & Catalysis · Vol. 9, Issue 1, 2022 · pp. 30–34 Read article
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Generating Fuel Energy by Catalytic Pyrolyzing of Microalgae
Abstract: In biomass pyrolysis process, a catalyst is used to modify the pyrolysis gases' chemical composition and increase the bio-oil fraction. This process uses the byproducts of thermal conversion processes. It is anticipated that the introduction of pyrolysis catalysts in the case of microalgae will lower the bio-oxygen oil's content and increase the number of added-value compounds in this liquid fraction. Catalysts can also help decrease the nitrogen in bio-oil. As …
Published in Journal of Catalyst & Catalysis · Vol. 9, Issue 2, 2022 · pp. 31–35 Read article
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Chemical Composition Quantification of Components in Extracts of Uncaria tomentosa by HPLC and LC-MS Analysis
Abstract: The tropical medicinal vine known as cat's claw, Uncaria tomentosa (Willd. ex Schult.) DC. (Family: Rubiaceae), is native to the Amazon rainforest and other regions of South and Central America. It has been shown to be useful as an immune system booster, antioxidant, antibacterial, and anti-inflammatory agent and has been historically used to treat wounds, fever, urinary tract infections, abscesses, and asthma. U. tomentosa contains a variety of phytoconstituents, including …
Published in Journal of Catalyst & Catalysis · Vol. 10, Issue 1, 2023 · pp. 32–39 Read article
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Production of Pectin from Orange Peels (Citrus sinensis)
Abstract: The study on pectin manufacturing from orange peel raw material indicated the effect of operating temperature on the quality and quantity obtained at a given mass of orange peels loaded in the distillation column, as well as the influence of time. The pectin was measured at various operating temperatures, times, and pH values of acidic media namely 1, 1.5, 2, 3, and 4 with operating temperatures of 60°C, 70°C, and …
Published in Journal of Catalyst & Catalysis · Vol. 10, Issue 3, 2023 · pp. 29–40 Read article
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Effect of Silica Fume in High-performance Selfcompacting Concrete with Conplast SP430
Abstract: Concrete is a construction material used worldwide since ages. Self-compacting concrete is that type of concrete which is firstly being developed in Japan in early 1990s and is capable to flow under its own weight and completely fill the formwork, without vibration effect, and cohesive enough to be handled without segregation and bleeding. Self-compacting concrete is known to be new class of high-performance concrete which is used to facilitate and …
Published in Journal of Construction Engineering, Technology & Management · Vol. 11, Issue 2, 2021 · pp. 12–18 Read article
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Alzheimer disorders diagnosis system design using machine learning for EEG signal
Abstract: The diagnosis of Alzheimer's disorders (AD), a prevalent neurological disorder, can created by utilising a range of therapeutic methods, including the electroencephalogram (EEG), which has been especially successful in the past. The objective for this study is to develop a computer-aided diagnosis tool which may recognize AD from EEG data. The EEG information was cleaned up with a band-pass elliptic digital filter to remove any interference or disruptions. The filtered …
Published in Journal of Control & Instrumentation · Vol. 14, Issue 1, 2023 · pp. 9–22 Read article
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Numerical Modeling of Elastoviscoplastic Material Model in Strain Space
Abstract: Conventional material non-linear analysis works with stress-space plasticity. It uses yield function, loading-unloading criteria, and flow rule in terms of stress parameters. It shows ambiguity in loading-unloading criteria for softening materials. During such situations, an alternative strain-space formulation becomes quite useful to carry out analysis of such materials. The viscoplastic response of materials requires the time integration of system of non-linear first order differential equations. In viscoplasiticy, the constitutive equation …
Published in Journal of Experimental & Applied Mechanics · Vol. 9, Issue 1, 2018 · pp. 9–14 Read article
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An Application of PARETO Chart for Investigation of Defects in FNB Casting Process
Abstract: Casting is one of the widely used manufacturing processes consisting of melting and pouring the metal into the mould to get the desired shape. Furan no-bake system is a binder system consisting of furan resin and acid catalyst. It is a fast growing system due to its excellent surface finish and dimensional accuracy. Although having high dimensional accuracy, many defects arise in FNB casting such as sand inclusion, gas porosity, …
Published in Journal of Experimental & Applied Mechanics · Vol. 9, Issue 1, 2018 · pp. 33–39 Read article
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Modeling of Sintering Process for the Preparation of Magnetic Abrasives by RSM and ANN Models
Abstract: In this study, a modeling has been done for the prediction of the sintering process, as sintering process is one of the best processes to prepare magnetic abrasives. The sintering process is modelled by using RSM and ANN techniques. The ANN model has been developed using a multilayer feed-forward neural network and trained with the help of an error backpropagation learning algorithm based on the generalized delta rule. The indication …
Published in Journal of Experimental & Applied Mechanics · Vol. 10, Issue 3, 2019 · pp. 5–12 Read article