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2000 articles for “SP” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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The Performance of Microbial Lipase Immobilized onto Ion Exchange Resins and onto the Natural Zeolite Clinoptilolite
Abstract: The paper describes a study into the performance of a microbial lipase immobilized on to four different ion exchangers. Lipase from the yeast Candida rugosa was immobilized onto the anionic ion exchange resins Dowex MWA-1, Purolite A109, and Amberlite IR45. The performance of the immobilized lipase in each case was evaluated by measuring the immobilization efficiency and by following the reaction kinetics of hydrolysis of a tri-glyceride ester to free …
Published in International Journal of Chemical Separation Technology · Vol. 2, Issue 2, 2016 · pp. 24–32 Read article
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Chemical Separations to Transform the Domain
Abstract: The chemical industry includes producers of industrial gases, large-volume commodity chemicals and polymers, chemical products for agricultural and medicinal uses, and performance-targeted chemical and polymer specialties. The industry produces more than 70,000 products, including raw and basic materials, intermediate materials, and finished products. The chemical industry obtains raw materials from the petroleum refining, natural gas, and mining industries, as well as from biological sources. Air emissions included 4.3 million metric …
Published in International Journal of Chemical Separation Technology · Vol. 3, Issue 2, 2017 · pp. 24–29 Read article
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Hydrogenation of dimethyl-nitrobenzene to dimethyl-aniline in a three-phase Reactor
Abstract: The liquid-phase catalytic hydrogenation of dimethyl-nitrobenzene (DN) to Dimethyl-aniline (DA) was carried out in ethanol using 5% Pd/C as a catalyst. The effects of hydrogen partial pressure (400–1000 kPa), reaction temperature (343–403 ), catalyst loading (5–15 g/lit), speed of stirring range (200-800 rpm) and dimethyl-nitrobenzene concentration (0.12–0.75 mol/lit) on the hydrogenation of dimethyl-nitrobenzene and the yield of Dimethyl-aniline have been studied. Dimethyl-aniline was the only reaction product, generated through the …
Published in International Journal of Chemical Separation Technology · Vol. 3, Issue 2, 2017 · pp. 1–13 Read article
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Extractive Distillation study for the system Acetone - Chloroform – DMSO
Abstract: Acetone- chloroform is a maximum boiling azeotropic mixture which is frequently observed in the pharmaceutical and specialty chemicals industries. Conventional distillation does not yield the desired separation into pure components that is Acetone and Chloroform. Present work, focuses on separation of mixture by Extractive Distillation (ED) using PRO/II simulation software. Solvent used in separation of the mixture is DMSO (Di Methyl Sulfoxide) and thermodynamic model UNIFAC is selected for the …
Published in International Journal of Chemical Separation Technology · Vol. 4, Issue 1, 2018 · pp. 1–12 Read article
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Prevention is better than cure – Soft drinks
Abstract: Sugar-sweetened beverages (SSBs) margins to levy inspired more to marketing of low sugar drinks. Sports drink margins weight in case of variation in consumptions. Fatigue by dehydration reversed by weight gain keeping drink rate same. Legislation controversies arose from competence of whole energy intake to devaluate soft drink from imbalanced liquid intake fronts. Effects additive from any contamination as well as over dosage of diet drinks produce controversies in calorie. …
Published in International Journal of Chemical Separation Technology · Vol. 5, Issue 2, 2019 · pp. 44–48 Read article
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Extraction of Bioflavonoid from Peel of Citrus sinensis
Abstract: Citrus sinensis is belongs to the Rutaceae family. This is also known as orange fruit and it contains several phytochemicals like phenolic compounds, phenolic acids, bioflavonoids (quercetin, rutin and kaempferol), saponins, carotenoids, citric acid and vitamin C (ascorbic acid). It shows various pharmacological activities like antioxidant activity, anti-inflammatory activity, anti-diabetic activity, anti-cancer activity, wound healing activity etc. This plant control the various disorders in the society. Bioflavonoids also assist in …
Published in International Journal of Chemical Separation Technology · Vol. 7, Issue 1, 2021 · pp. 1–5 Read article
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Electrolytic Degradation of Uric Acid Using Nickel Electrodes in an Unpartitioned and Partitioned Batch Cell
Abstract: Electrolytic degradation of an aqueous solution of uric acid (UA) was performed in an unpartitioned and partitioned electrolytic tank using nickel electrodes. The concentration of uric acid was measured using a UV–Visible spectrophotometer, and the effect of operating parameters such as voltage, concentration of uric acid and the supporting electrolyte were investigated. It is found that the concentration of uric acid decreases with time in both the unpartitioned and partitioned …
Published in International Journal of Chemical Engineering and Processing · Vol. 2, Issue 1, 2016 · pp. 1–10 Read article
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Influence of CeO2 nanoparticles on the corrosion behavior of electrodeposited Ni coatings
Abstract: Nickel-Ceria (Ni-CeO2) nanocomposite coatings were developed on mild steel (MS) substrate using electrodeposition method. The codeposition of the nanoparticles was achieved from the optimized Ni plating bath loaded with CeO2 nanoparticles (particle size <20 nm). Ni and Ni-CeO2 coatings were achieved at a wide current density (c.d.) range from 1.0 to 5.0 A/dm2 under optimal conditions, and their corrosion protection efficacy was examined in 5% NaCl medium. The material property …
Published in International Journal of Chemical Engineering and Processing · Vol. 2, Issue 1, 2016 · pp. 19–28 Read article
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A Customized Wireless Supervisory Infrastructure for Integration and Explicit Multiparametric MPC-Based Control of Laboratory Processes
Abstract: In this study, a custom, embedded wireless (Zigbee) supervisory infrastructure aimed at integration of laboratory processes is reported. A microcontroller based field control unit (FCU) implements closed loop control on experiments via ADAM 5000/485 data acquisition module. Data from the process (sensor/manipulation) are broadcasted from FCU using a wireless access point (WAP). A MATLAB graphic user interface (GUI) updates the data (obtained using a remote monitoring unit (RMU)) graphically. Multiparametric …
Published in International Journal of Chemical Engineering and Processing · Vol. 2, Issue 2, 2016 · pp. 10–18 Read article
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A Study on the Effect of Current Density on Electrocatalytic Behavior of Ni–Co Alloy
Abstract: Active, stable and more efficient electrocatalysts are the requirements for water splitting applications. In this direction, the present paper presents the experimental results on electrolytic development of Ni–Co alloy coatings, and their application as electrode material for hydrogen evolution reactions (HER) and oxygen evolution reactions (OER). The Ni–Co alloy coatings were electrodeposited on copper substrate from a sulfate bath, using the glycerol as additive. The deposited coatings were then tested …
Published in International Journal of Chemical Engineering and Processing · Vol. 3, Issue 1, 2017 · pp. 9–23 Read article
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Production of Compositionally Modulated Nanolayer Zn–Ni Alloy Coatings and Their Corrosion Behaviours
Abstract: Compositionally modulated nanolayer alloy (CNA) coatings of Zn–Ni having alternatively the same compositions have been developed galvanostatically on mild steel from single bath technique (SBT) using square current pulses. Sulphanilic acid and citric acid (CA) were used as additives. Modulation in the composition of alloys were introduced by passing a different switched cathode current densities (SCCD’S) using sophisticated power sources. Variety of CNA coatings was developed under different conditions of …
Published in International Journal of Chemical Engineering and Processing · Vol. 3, Issue 1, 2017 · pp. 1–8 Read article
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A Review on Glucose Sensor
Abstract: The estimation of blood glucose levels is done utilizing different glucose biosensors for the screening, conclusion, and long term administration of patients with diabetes. Amperometric biosensors work by the creation of a present when a potential is connected between two terminals. At the point when a capability of - 0.6 V, with respect to the Ag/AgCl anode is connected to the platinum cathode, a present relative to the oxygen focus …
Published in International Journal of Chemical Engineering and Processing · Vol. 3, Issue 2, 2017 · pp. 7–11 Read article
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Catalytic hydrogenation of dimethyl-nitrobenzene to dimethyl-aniline over Ni catalysts
Abstract: The catalytic transfer hydrogenation of dimethyl-nitrobenzene (DN) to Dimethyl-aniline (DA) was studied in the temperature range 343–403 , pressure range of 4–10 bar H2 and ethanol as solvent using Ni on alumina-silicate as catalyst above agitation speed 800 rpm. The substrate feed concentration was varied in the range from 0.124 to 0.745 kmol/m3 while catalyst loading was in the range 4–12% (w/w) of dimethyl-nitrobenzene. Dimethyl-aniline was the only reaction product, …
Published in International Journal of Chemical Engineering and Processing · Vol. 3, Issue 2, 2017 · pp. 19–29 Read article
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A PARAMETRIC ANALYSIS OF AMBIENT TEMPERATURE ON FLAT AND CURVED SURFACE OF A PV CELL
Abstract: This work focused on investigating and controlling the effect of ambient temperature on the surface temperature of a PV module. An experimental approach is carried out to provide ventilation on the surface of the PV panel with the help of a blower. With the increase in solar irradiance, the panel temperature also increases so experiment is conducted for different velocities of the air with the help of a blower to …
Published in International Journal of Chemical Engineering and Processing · Vol. 4, Issue 1, 2018 · pp. 39–48 Read article
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Experimental Studies on the Surface-Driven Capillary Flow of Water in Pristine and Processed Microfluidic Devices Fabricated by PMMA
Abstract: In this work, air dielectric barrier discharge (DBD) plasma processing on pristine polymethylmethacrylate (PMMA) flat surface is the chosen surface modification technique to vary the surface wettability creating a difference in microfluidic speed of dyed water. Straight microchannel of uniform width, microchannel with integrated micropillars on bottom wall, and microchannel bend are the proposed designs of PMMA microfluidic devices in this work. Each microfluidic flow of dyed water is recorded …
Published in International Journal of Chemical Engineering and Processing · Vol. 4, Issue 1, 2018 · pp. 33–38 Read article
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An Eco-friendly approach for the utilization of waste water for the generation of Bioelectricity
Abstract: Abstract: Microbial fuel cell (MFC) is pollution free, electricity generation device; it represents a new method for eco-friendly source of electricity generation. When we produce electricity by Microbial fuel cell from food factory waste water we obtained pure water as a byproduct. Microbial fuel cell (MFC) is a special type of cell by which we can produce eco-friendly energy in the form of electricity. This paper explores the application of …
Published in International Journal of Chemical Engineering and Processing · Vol. 4, Issue 2, 2018 · pp. 23–26 Read article
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Variations in GCRs with Solar Variability between 1996-2018
Abstract: Abstract The solar outputs and their variability controls by heliospheric structure, produce changes in cosmic ray intensity (high energy charged particles) entre into inner heliosphere. Observation based on the data taken from Omniweb data centre for solar- interplanetary data and monthly mean count rate of cosmic ray intensity (CRI) variation data from Oulu and Moscow neutron monitors during 1996-2018. It is observed that slow decline of solar cycle 23 and …
Published in International Journal of Chemical Engineering and Processing · Vol. 4, Issue 2, 2018 · pp. 43–46 Read article
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The new method of mixing in an advanced ceramics processing
Abstract: Ceramics for today’s engineering applications can be considered as advanced, new or fine, and utilize highly refined materials. These new or advanced ceramics, when used as an engineering material, possess several properties which can be viewed as superior to metal-based systems. These properties place this new group of ceramics in a most attractive position, not only in the area of performance but also cost effectiveness. These properties include high resistance …
Published in International Journal of Chemical Engineering and Processing · Vol. 5, Issue 1, 2019 · pp. 43–47 Read article
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An Analytical Approach to Calculate the One-Dimensional Drift Velocity in Bubble Columns
Abstract: The design and scale-up of a bubble column reactor require a complete understanding of its complex hydrodynamics, which is influenced by the physical properties of the phases, the operating variables, and the design parameters. Current design procedures for bubble columns involve several steps of pilot-plant experimentation, which is expensive and time-consuming. One of the critical unknown parameters involved in designing any gas-liquid system is the gas holdup. The gas holdup …
Published in International Journal of Chemical Engineering and Processing · Vol. 5, Issue 2, 2019 · pp. 1–9 Read article
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Parametric Analysis and Optimization of Nuclear Assisted Electrolytic Hydrogen Production System for On-site Applications
Abstract: The use of compact water electrolyser units as an alternative source of hydrogen to the high pressure hydrogen cylinder banks used at present in nuclear and thermal power reactors for turbo-generator rotor cooling applications has been analysed in this work. Financial metrics have been used for assessment of the technology substitution in the nuclear industry in India, primarily by comparing the levelised costs of onsite hydrogen generation in small generators …
Published in International Journal of Chemical Engineering and Processing · Vol. 6, Issue 1, 2020 · pp. 14–26 Read article