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1474 articles for “experience”
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Separation of p-xylene from xylene isomer mixtures within a single stage porous batch cooling crystallizer
Abstract: Crystallization based separation of p-xylene from its isomer mixtures were mostly accomplished in stirring crystallizers, suspension crystallizer and scrapping crystallizer followed by centrifugation. In this work, separation process for p-xylene, where both crystallization and separation of p-xylene in a single batch crystallizer, was performed. Upon cooling, p-xylene, which has the higher melting point than other xylene isomers (o-xylene and m-xylene), crystallizes first. Xylene mixture samples were crystallized at a lower …
Published in International Journal of Chemical Engineering and Processing · Vol. 6, Issue 1, 2020 · pp. 62–78 Read article
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Essence of Physicochemical Model of the Formation of Negatively Charged Microdispersed Hydrogen Bubbles in the Process of Electrolysis of Water Solutions
Abstract: Electrolytic hydrogen bubbles, formed during the electrolysis of water solutions, have two unique properties: microdispersion and negative charge of their surface, which allow them as a result of an elementary act of flotation to form strong complexes: negatively charged micro dispersed hydrogen bubbles-microscopic solid particle, biological cell, whose floatation to the free surface of water solution due to their increased volume compared to individual components ensures the successful completion of …
Published in International Journal of Chemical Engineering and Processing · Vol. 8, Issue 1, 2022 · pp. 30–42 Read article
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Design of Batch Reactors for Pulping of Plantain Pseudostem
Abstract: Plantain pseudostem has little application in Africa and constitute major domestic waste and often problematic to manage. It however contains a high content of lignocellulose that can be used for production of pulp. With the geometric decline of feedstock for pulp production due to dwindling wood resources, plantain pseudostem becomes a ready alternative. This study developed design models for batch reactor for the plantain pulping process under isothermal, non-isothermal and …
Published in International Journal of Chemical Engineering and Processing · Vol. 8, Issue 2, 2022 · pp. 1–8 Read article
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Chemical Synthesis and Characterization of Polyaniline for Supercapacitors Application
Abstract: Various polyaniline (PANI) synthesis methods are reported in the literature, depending on the experimental parameters involved (T, t, doping, and mixing procedure). Herein, three chemical polymerization methods were used to synthesis PANI from aniline monomer: rapid oxidation (OR), controlled oxidation (CO), and interfacial oxidation (OI). The PANI was therefore deposited next by drop casting on a silicon (Si) substrate. X-ray diffraction, Raman spectroscopy, and scanning electron microscopy were used to …
Published in International Journal of Chemical Engineering and Processing · Vol. 8, Issue 2, 2022 · pp. 9–16 Read article
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The Power of Chemical Modeling: Unveiling Molecular Behavior
Abstract: Chemical modeling has developed as a strong tool for deciphering the complicated behavior of atoms at both the molecular and atomic scales. Researchers can simulate and comprehend the complex dynamics and properties of chemical systems by combining ideas from physics, chemistry, and computer science. The importance of chemical modeling in studying molecular behavior and demonstrates its transformative ability in a variety of scientific disciplines. Chemical modeling, using advanced computational approaches, …
Published in International Journal of Chemical Engineering and Processing · Vol. 9, Issue 1, 2023 · pp. 9–13 Read article
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Plant Extracts Volume Effects on the Corrosion of MCS Metal Sample using Water-Based as an Inhibitor
Abstract: The effect of water-based extracts of two different samples was examine with respect to volume on the characteristics of MCS metal corrosion inhibition. This research revealed that volume of extracts is a controlling factor in terms of metal corrosion inhibition as demonstrated by the two different water-based extracts investigated. Increase in the inhibiting substance (water-based extract) in terms of volume resulted to decrease in the rate of corrosion of the …
Published in International Journal of Chemical Engineering and Processing · Vol. 9, Issue 1, 2023 · pp. 1–8 Read article
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Bioethanol Production from Corncob Cellulosic Biomass: RSM and ANN based Optimization for Dilute Acid Pretreatment
Abstract: To increase the yield of fermentable sugars, the complexity of lignocellulosic biomass requires a pretreatment method. Dilute acid hydrolysis was used to efficiently pretreatment corn cobs. The aim of this study was to characterize corncob and investigate the effect of process parameters on total reducing sugar (TRS) yield during dilute acid hydrolysis pretreatment of corncob biomass. The morphology and microstructure of the samples were examined using an X-ray diffraction machine, …
Published in International Journal of Chemical Engineering and Processing · Vol. 9, Issue 2, 2023 · pp. 16–34 Read article
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Air Pollution – Its Effects on Health and Environment
Abstract: Air pollution can harm us when it accumulates in the air in high enough concentrations. Millions of Americans live in areas where urban smog, particle pollution, and toxic pollutants pose serious health concerns. People exposed to high enough levels of certain air pollutants may experience Irritation of the eyes, nose, and throat, wheezing, coughing, chest tightness, and breathing difficulties, Worsening of existing lung and heart problems, such as asthma and …
Published in International Journal of Environmental Chemistry · Vol. 1, Issue 1, 2015 · pp. 1–9 Read article
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Preparation of a composite Materials from activated carbon and waste plastic for water Treatment
Abstract: Insoluble resins offer several advantages in preparation processes, the chemical, photochemical and thermal mechanical properties of composites are largely affected by matrix properties. The aim of our study was a double aspect, the synthesis of a polymer-based ion exchanger from waste polystyrene and the composite material valorization in water treatment. a series of experiments was made to prepare the sulfonated polystyrene ion exchange resin and the composite material based on …
Published in International Journal of Environmental Chemistry · Vol. 5, Issue 2, 2019 · pp. 38–48 Read article
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A REVIEW ON SOUND WAVES AND ITS EFFECTS ON PLANTS
Abstract: The overall performance and development of cell is due to the elongation and proliferation of cell. The interconnection among various phenomena’s and sound waves is a significant topic to study in order to check the various pros and cons of sound waves on different functions of cell. Experiments show that sound waves of various frequencies, SPLS and of different kinds greatly affect the plants. Certain frequency sound waves such as …
Published in International Journal of Environmental Chemistry · Vol. 6, Issue 1, 2020 · pp. 1–14 Read article
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Determination of the Flow Velocity Resistance in Non- Submerged Woody Plants
Abstract: Vegetation on the bank of a river or stream has a major influence on resistance, velocity distribution,and turbulence force. The resistance to flow in open channels depends on different channel and flow parameters. Out of many factors, vegetation is the mainly important parameter in open channels. In this study have been five points to measure the velocity in the channel. The experimental work has been done by a rectangular channel …
Published in International Journal of Environmental Chemistry · Vol. 8, Issue 1, 2022 · pp. 1–7 Read article
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Biological Recovery of Soil Impacted by 30,000 ppm of Gasoline
Abstract: Gasoline is a mixture of low and high molecular weight hydrocarbons, which spilled on the soil due to fuel theft, causes environmental pollution. In consequence the Mexican standard, called NOM-138- SEMARNAT/SSA1-2012, establishes a maximum allowed limit of 4,400 ppm gasoline in soil. Therefore, the objectives of this research were i) biological recovery of the soil impacted by 30,000 ppm of gasoline, by biostimulation with commercial detergent 123® plus a mineral …
Published in International Journal of Environmental Chemistry · Vol. 9, Issue 2, 2023 · pp. 31–39 Read article
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Effect of TiO2 on HER Activity of Electrodeposited Zn–Ni Coatings
Abstract: This paper demonstrates the improved electrocatalytic behavior of Zn–Ni alloy coatings for alkaline hydrogen evolution reaction (HER), due to addition of TiO2 nanoparticles into the bath. Zn–Ni alloy coatings have been electrodeposited galvanostatically on copper, with wide compositional range (2.31–7.91 wt. % of Zn) at different current densities (c.d.) between 2.0 and 5.0 A dm-2. The electrocatalytic behaviors of all coatings have been studied for alkaline HER in 1.0 M …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 3, Issue 1, 2017 Read article
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Synthesis of Zeolites: An Overview
Abstract: Zeolites are microporous, aluminosilicate minerals commonly used as commercial adsorbents and catalysts. Zeolite synthesized from CFA is a minor but interesting product, with high environmental applications. Zeolites may be easily obtained from CFA by relatively cheap and fast conversion processes. This paper provides an overview on the methodologies for zeolite synthesis from CFA, and a detailed description of conventional alkaline conversion processes, with special emphasis on the experimental conditions to …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 3, Issue 2, 2017 · pp. 8–14 Read article
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Predictive Modelling of a Bioreactor for the Production of Ethanol Using Palmwine
Abstract: This research focuses on the feasibility of biochemical technology with yeast cells (Sacccharomycees cerevisiae) for continuous ethanol production from palm wine. This was carried out in a non-isothermal batch reactor at constant room temperature. 1.5L of palm wine solution was reacted with dry active baker’s yeast until reaction was completed. Biomass, ethanol and glucose concentration were sampled every two hours, and kinetic rate parameters for the fermentation calculated using concentration/time …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 5, Issue 2, 2019 · pp. 1–8 Read article
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Green Synthesis of Nickel(II) and Zinc(II) Complexes of Bis(Imine) Schiff base Derived from o-vanilline and m-phenylenediamine.
Abstract: The synthesis of Schiff base ligand derived from aromatic aldehyde (o-vanillin) and m-phenylenediamine via liquid-assisted mechanochemical synthesis (LAG) in the presence of small amount of dimethylformamide were reported. The Schiff base complexes of Ni(II) and Zn(II) were also synthesized mechanochemically and characterized using infra-red spectroscopy, thermogrametric analysis, energy dispersive x-ray analysis, powder x-ray diffraction, UV-Visible analysis, conductivity measurement, magnetic susceptibility measurement and CHN, micro-analysis. Infrared spectral study indicated a strong …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 6, Issue 1, 2020 · pp. 31–43 Read article
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Fundamentals of Mass Transfer Operations
Abstract: Mass transfer operation is one of the most important subjects in chemical engineering. It contains concepts of diffusion, mass transfer coefficient and interface mass transfer. Also important unit operations such as distillation, absorption, extraction, crystallization, drying, humidification and dehumidification are covered in mass transfer operation. We come across these unit operation in our domestic applications and day to day life. These unit operations can be intensified to improve the cost …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 6, Issue 1, 2020 · pp. 15–18 Read article
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Theoretical Insights Into Structure, Electronic Properties, and Ion-pair Interactions In Organopalladium Salts [Pd(p-XC6H3CHMeNH2) (tmeda)] [BF4] AND [Pd(p-XC6H3CHMeNH2) (tmeda)] [PF6] (X = H, F, Me)
Abstract: The geometries of organopalladium salts [Pd(p-XC6H3CHMeNH2) (tmeda)] [BF4] and [Pd(pXC6H3CHMeNH2) (tmeda)] [PF6] (X = H, F, Me) (I-VI) have been optimized using BP86 and TPSS density functional at dispersion corrected DFT-D3(BJ) method. The optimized geometries of the salt [Pd(C6H4CHMeNH2) (tmeda)] [BF4] using TPSS functional in methanol slvent is in good agreement with available experimental data. The N1-Ha bond distances are longer than the N1-Hb bonds. The counterion strongly affects the …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 9, Issue 1, 2023 · pp. 11–21 Read article
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Energy Conservation with use of Cool Roof Coatings
Abstract: Regions with hot and dry climate often experience very high levels of solar radiation, high ambient temperatures and relatively low specific humidity. The roofs of buildings in such areas are always exposed to Sun for long duration during the daytime. Solar radiation is responsible for heat transfer through the building roof. Actually, Solar radiation heat the roof which in turn reradiates the heat onto the ceiling and finally on to …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 2, Issue 2, 2016 · pp. 1–13 Read article
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Development of Effective Electrodes and Electricity Generation in Continuous Microbial Fuel Cell using Poultry Wastewater
Abstract: The Microbial Fuel Cell was designed for batch and continuous operations and the electrodes were developed using a simple and effective technique known as phase inversion. The different combinations of electrodes were used in the experiment to get the maximum power output and organic matter removal. The poultry wastewater was used as substrate and was comparatively studied with Luria Bertani (LB) solution. The best combination of electrode was found to …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 4, Issue 1, 2018 · pp. 1–11 Read article