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13 articles for “Esterification”
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Investigation on Trans-esterification of Terephthalic Acid and Ethylene Glycol for the Production of Polyester Fibers.
Abstract: ABSTRACTThere have been considerable efforts to produce renewable polymers from biomass. Poly(ethylene terephthalate) (PET) is the most common thermoplastic polymer resin of the polyester family and is used in fibers for clothing, containers for liiquids and foods, thermoforming for manufacturing ,etc.The monomer bis(2-hydrooxyethyl) terephthalate can be synthesized by the esterification reaction between terephthalic acid and ethylene glycol with water as a byproduct, or by transesterification reaction between glycol and dimethyl …
Published in International Journal of Chemical Separation Technology · Vol. 6, Issue 2, 2020 · pp. 6–11 Read article
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Synthesis and Characterization of Biodiesel from Animal Fat
Abstract: Biodiesel, an alternate and ecologically acceptable substitute for the conventional fuel, is usually produced from a wide range of edible vegetable oils, which are normally used for human consumption and whose prices are expected to increase in future. In this regard, reliable and low-cost raw materials have increasingly drawn interest for biodiesel production, such as by-products of the meat processing industries or waste animal fats. In present work biodiesel production …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 5, Issue 2, 2019 · pp. 45–54 Read article
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Identification of significant parameters for the production of Jatropha biodiesel using preliminary experimentation
Abstract: The current research work is on Jatropha biodiesel for finding the significant parameters in optimum biodiesel yield. The one factor at a time approach is applied in the esterification. The trans-esterification reaction is used by mixing of Jatropha oil and ethanol in the presence of catalyst KOH. After some time two products are formed a Jatropha biodiesel and a glycerin. The density of glycerin is more as compared to biodiesel. …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 9, Issue 1, 2023 · pp. 1–7 Read article
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Microbial Production of Lipase Enzyme Using StrainCandida tropicalis and Its Application inBioscouring and Biodiesel
Abstract: The growing interest in lipase production is driven by the potential biotechnological applications. In present study lipase producing enzyme using strain Candida tropicalis isolates by using tributyrin agar plate method and confirmation on sprit blue agar which showed the positive result via a zone of hydrolysis. lipase enzyme was carried out by SSF and SMF showing more effective production SSF (25.97 ± 0.47 U/ml/min) as compared to SMF (10.27 ± …
Published in International Journal of Industrial Biotechnology and Biomaterials · Vol. 12, Issue 2, 2026 · pp. 1–21 Read article
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Role of Human Carboxylesterase’s in Xenobiotics Metabolism
Abstract: According to one definition, xenobiotics are alien compounds that interfere with an organism's natural metabolism. Many xenobiotics can have a number of harmful effects if they don't have metabolism. There are several phase 1 metabolizing enzymes of xenobiotics which have capability to detoxify the toxic compounds. Several important metabolic detoxication enzymes are presented, including the mammalian microsomal cytochrome Carboxylesterases. Mammalian carboxyleterases are key enzymes from the serine hydrolase enzyme. Carboxylesterases …
Published in International Journal of Chemical Engineering and Processing · Vol. 11, Issue 1, 2025 · pp. 13–22 Read article
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Novel method for determination of kinetic constants from dynamics in a batch reactor with constant heat input rate
Abstract: In this article a novel method of obtaining reaction kinetic constants is described. It consists of measuring both concentration and temperature dynamics in a batch reactor supplied with a constant heat input rate. A system of esterification reaction between acetic acid and methanol in the presence of a cationic resin catalyst is studied. This reversible reaction’s rate is modeled by molecular order and as pseudo homogeneous assumption. By just one …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 5, Issue 1, 2019 · pp. 19–23 Read article
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Biodiesel production using waste cooking oil: influence of catalysts on reaction parameters
Abstract: Over a century ago, Rudolf Diesel tested the used of vegetable oil as fuel for his automotive engine, several years later, bio-based diesel obtain from trans-esterification of animal fats or vegetable oils in presence of catalyst have been used as alternative automotive fuels to safe guard the environment and avoid global warming. Cost of production process has limited the diversification and generalizes usage of biodiesel, thus exploring avenues for cost …
Published in International Journal of Industrial Biotechnology and Biomaterials · Vol. 7, Issue 1, 2021 · pp. 1–8 Read article
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Using Microalgae for Biofuel Applications
Abstract: Microalgae are microscopic algae (kingdom Protista) which are unicellular autotrophic organisms that perform photosynthesis and are highly specialized to the water environment which can convert CO2 into lipid which after esterification can be utilized as an energy source. This kind of algae contributes up to 60% of the oxygen contained in the earth's atmosphere by absorbing CO2 and releasing O2 during photosynthesis. Micro algae are found abundantly in the natural …
Published in International Journal of Industrial Biotechnology and Biomaterials · Vol. 9, Issue 2, 2023 · pp. 20–25 Read article
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A Study on the Properties of Methyl Esters of Camelina Sativa Oil
Abstract: The depletion of fossil fuel and the pollution created due to the combustion of fossil fuels created an awareness to find an alternative to fossil fuels. In this present work, the focus is on to utilize the camelina sativa seed to produce oil and the same is trans-esterified to biodiesel and in this connection a detailed analysis has been done. Biodiesel is produced by transesterification of neat Camelina Sativa oil. …
Published in International Journal of Green Chemistry · Vol. 4, Issue 1, 2018 · pp. 1–6 Read article
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Comparative studies on the use of palm kernel and coconut oil as biodiesel fuel sources
Abstract: This research work focuses on the production of biodiesel from palm kernel oil and coconut oil. The biodiesel was prepared by trans-esterification of the oils (unsaturated fatty acid) with an alcohol in the presence of a catalyst to give mono alkyl ester. The biodiesel obtained from the two sources was characterized and the properties compared, The API gravity, Specific gravity, Flash point, Carbon residue, Sediment and Water content, sulphur content …
Published in International Journal of Green Chemistry · Vol. 4, Issue 1, 2018 · pp. 19–24 Read article
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Fabrication and Characterization of Paper-Sludge Reinforced Polypropylene Composites
Abstract: The purpose of this research was to identify some physical and mechanical characteristics of polypropylene (PP) composites reinforced using various paper sludge (PS) and PP combinations, as well as to assess the performance of the coupling agent. The physico-chemical characteristics of the waste sludge material from paper manufacturing wastewater treatment sludge (PS) were investigated. The physical and mechanical properties of the composite were examined in the experiment using three levels …
Published in International Journal of Chemical Separation Technology · Vol. 8, Issue 2, 2022 · pp. 15–26 Read article
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Comparative Studies on Production of Biodiesel from Waste Vegetable Oil (WVO) & Noctiluca Scintillans(NS)
Abstract: The world realized that the main source of energy from crude oil, which leads to the environmental concern and disappeared in few years. That’s how new resolutions are under study looking for alternate fuel to replace the fossil fuels. The research studies have been made in field, but none of which are on a large scale production locally in Oman. Based on scenario, Biomass (algae) can be produced to make …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 5, Issue 1, 2019 · pp. 23–36 Read article
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Preparation of PMMA Nanoparticles in Different Ways and Studying the Effect of Some Factors on Changing Its Properties
Abstract: Poly(methyl methacrylate) (PMMA) is usually made with the help of radical polymerization, coordination polymerization, and methyl methacrylate acid esterification. Due to its hardness, PMMA is widely used in the medical sciences, optical materials, electronics, and automotive industries. The present study aims to fabricate PMMA nanoparticles using different chemical methods such as sol-gel polymerization, co polymerization, etc. Various aspects of the synthesis process will be changed, such as temperature, reaction time, …
Published in International Journal of Polymer Science and Engineering · Vol. 8, Issue 2, 2022 · pp. 37–43 Read article