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1975 articles for “Operative” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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A Technical Review on cause of corrosion on carbon steel
Abstract: Piping is used in power plants, petrochemical plants and refineries to convey fluids to and from their place of usage and forms an essential part of the operation of the plant. It is advantageous for the student at Fourth Class level to understand the differences between piping requirements for the various fluids concerned, the materials best to be used, commercial pipe sizes, methods of connection and fittings. The challenging environment …
Published in Emerging Trends in Chemical Engineering · Vol. 5, Issue 1, 2018 · pp. 1–4 Read article
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MODELING AND SIMULATION OF ESTERIFICATION PROCESS IN REACTIVE DISTILLATION COLUMN USING ASPEN PLUS
Abstract: Abstract: Reactive distillation is a process that combined a chemical reaction and physical separation in a single unit operation. A results is carrying out simulation by using Aspen plus, it is shown in reactive distillation column. In this case, reaction takes place in liquid phase. While solving this type of problem, we have to use thermodynamics property. The boiling point of water is low and iso-amyl acetate having high boiling …
Published in Emerging Trends in Chemical Engineering · Vol. 5, Issue 1, 2018 · pp. 5–9 Read article
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Esterification in Reactive Distillation Column Using Software Packages: A Review
Abstract: Abstract: Reactive distillation is the combination of reaction and separation in a same column. This represents an exciting alternative to traditional liquid phase chemical reaction processing. In reactive distillation, separation of products from unconverted reactants allows for better conversion, because produce elimination put out of place equilibrium and forces the reaction towards completion. The energy requirement of the conventional column is very and requires large recycling costs. Reactive Distillation is …
Published in Emerging Trends in Chemical Engineering · Vol. 5, Issue 1, 2018 · pp. 23–27 Read article
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Assessment of a Wind Energy Conversion System for Sustainable Hydrogen Production by Alkaline Water Electrolysis in India: Effect of Geographical Location and Wind Turbine Type
Abstract: The use of wind energy for electricity generation and use of this electricity for hydrogen production by alkaline water electrolysis promises to be a truly sustainable scheme for the postulated hydrogen economy. This work addresses the feasibility assessment of a standalone wind energy based turbine generator system that meets the energy requirements of the electrolysis process at several locations in India. Energy requirement for electrolysis depends on the hydrogen production …
Published in Emerging Trends in Chemical Engineering · Vol. 4, Issue 2, 2017 · pp. 5–22 Read article
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Biosorption of Fluoride from Aqueous Solution Using Ulva fasciata sp.: A Marine Green Algae
Abstract: Water is a useful and vital natural resource for sustaining life and environment that we have always thought to be available in abundance and free gift of nature. Enhanced industrial activity during recent decades has led to the discharge of unprecedented volumes of industrial waste water, which is a serious cause of environmental degradation. Excessive fluoride concentrations have been reported in ground waters of more than 20 developed and developing …
Published in Emerging Trends in Chemical Engineering · Vol. 4, Issue 2, 2017 · pp. 45–53 Read article
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Performance Simulation of Ground Source Heat Pump System based on Low Enthalpy Geothermal Systems
Abstract: Geothermal energy is a clean and sustainable source of energy, which can be used to reduce individual carbon footprints of buildings and make environment pollutant free. This paper gives the idea of implementation and simulation of ground source heat pump (GSHP) system operating with a low enthalpy geothermal resource, which can be utilized for space heating and cooling in industrial and domestic applications. Simulation study is carried out taking various …
Published in Emerging Trends in Chemical Engineering · Vol. 4, Issue 1, 2017 · pp. 29–39 Read article
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Modeling of Shell and Tube Heat Exchanger
Abstract: A heat exchanger is a equipment for transferring thermal energy between two fluids. Transfer of heat from one fluid to another is the most employed operations in chemical process industries. They are either used for heating or cooling. The most common application of heat transfer is to transfer heat from one fluid to another. The thermal design of shell and tube heat exchanger is discussed in detail in this paper. …
Published in Emerging Trends in Chemical Engineering · Vol. 3, Issue 1, 2016 · pp. 9–11 Read article
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Synthesis of Biodiesel with Methanol Recovery in Reactive Distillation
Abstract: In the present study, biodiesel was synthesized from waste vegetable oil, methanol and catalyst. The present work investigates the use of reactive distillation for continuous production and separation of biodiesel with recovery of excess methanol as top product of acceptable purity. In order to determine the best conditions for biodiesel production by reactive distillation, process parameters such as molar ratio of oil to alcohol, reaction temperature, catalyst concentration (0.5–1.5 wt …
Published in Emerging Trends in Chemical Engineering · Vol. 3, Issue 1, 2016 · pp. 26–31 Read article
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A Detailed Portrayal of Chemical Engineer in Chemical Process Development: An Overview
Abstract: A chemical engineer may be involved in industry or university research where they are tasked in designing and performing experiments to create new and better ways of production, controlling pollution, conserving resources and making these processes safer. Chemical engineers are responsible for the availability of modern high quality materials that are essential to run an industrial economy. On the other hand, the chemistry is the science that studies (scale laboratory) …
Published in Emerging Trends in Chemical Engineering · Vol. 2, Issue 3, 2015 · pp. 4–14 Read article
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Development of Software Packages for Computer Aided Design and Performance Analysis of Industrial Fractional Distillation Equipment
Abstract: This paper deals with improved CAD software packages that have been developed with the objective of improvising the existing conservative design of fractional distillation equipment. Since fractional distillation is extensively employed in petroleum refineries, distilleries and in a large number of chemical process industries, accurate design and optimised performance of these equipments are detrimental to the overall economy of these industries. Further, the efficient performance of the fractionators are dependent …
Published in Emerging Trends in Chemical Engineering · Vol. 2, Issue 3, 2015 · pp. 15–41 Read article
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Application of Ultrasound for Synthesis of Biodiesel
Abstract: The aim of study is to synthesize a biodiesel from soybean oil using ultrasonic process. At present, biodiesel is produced in batch reactors in which the required energy is provided by heating by mechanical mixing. Alternatively, ultrasonic processing is an effective way to attain required mixing providing the necessary activation energy. Ultrasonic is a very desirable tool for producing biodiesel from vegetable oil and animal fats, because it lowers the …
Published in Emerging Trends in Chemical Engineering · Vol. 2, Issue 1, 2015 · pp. 1–8 Read article
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Parametric Studies of In-house Resin for Hardness Removal
Abstract: Presence of high amount of calcium and/or magnesium makes the water hard as these ions in water react with other chemical agents and constituents of metallic plumbing etc. The process accelerates in the presence of heat. It decreases the efficiency of the unit operation due to the formation of scales. Hence, scaling is the main issue for which hard water is required to be treated or polished. De-mineralized water finds …
Published in Emerging Trends in Chemical Engineering · Vol. 1, Issue 3, 2014 · pp. 34–39 Read article
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Continuous Column Study of Chromium (VI) Adsorption by Ion Exchange Resin
Abstract: The Indion GS300 anion exchange resin was trialed for its ability to remove chromium (VI) from synthetic wastewater by continuous column experiments. The ability of Indion GS300 to adsorb chromium (VI) in a fixed-bed column was analyzed. The effects of operating parameters such as flow rate and bed depth on the sorption characteristics of Indion GS300 were investigated. The total adsorbed quantities, equilibrium characteristics were related to the effluent volumes …
Published in Emerging Trends in Chemical Engineering · Vol. 1, Issue 2, 2014 · pp. 1–7 Read article
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Production of Particle Board from Cotton Stalk
Abstract: The cotton stalks are normally disposed of by burning, which contributes to the emission of harmful greenhouse gases which pollute the environment. This study used cotton stalk for the production of particle board. The study includes collection and preparation of cotton stalk, analyzing using the ASTM method and its morphological structure, determination of proximity and chemical compositions to compare with hardwood characteristics and production of cotton stalk particle board (CSPB) …
Published in Emerging Trends in Chemical Engineering · Vol. 7, Issue 3, 2020 · pp. 23–33 Read article
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Implications from Mesomaterials: Recent Trend
Abstract: Mesomaterials are materials of larger surface area, specific pore volume, more active chemical sites and high chemical stability. Mesoporous materials are used for molecular filtration and separation by adsorption of chemicals. Mesomaterials remove pollutant, toxic, and carcinogenic compounds from medium by interfacial adsorption-physisorption-chemisorption process. Molecular filtration on other hand is studied from categories produced by nano-maso-composed forms like silanol. Adsorption heat pump is operated by waste heat of solar energy. …
Published in Emerging Trends in Chemical Engineering · Vol. 7, Issue 3, 2020 · pp. 17–22 Read article
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Model to Predict a Ratio Control of Hydrocarbon Acid and Water in a Packed Bed Reactor
Abstract: Model development was carried out to examine the ratio of hydrochloric acid gas and water in a packed bed reactor. The research predicted increase in output with increase in time, revealing the effectiveness ratio control of hydrochloric acid separation from water using absorption column mechanism. The density of the products played an active role in the separation process as well as in control action function. The developed model can be …
Published in Emerging Trends in Chemical Engineering · Vol. 8, Issue 1, 2021 · pp. 45–52 Read article
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Review of Relevant Evapotranspiration Models for Estimating Reference Evapotranspiration
Abstract: The word evapotranspiration (ET) is a very pivotal component of the hydrological cycle, and it has a very crucial but accurate design and operation in terms of management of irrigation systems. Its evaluation by direct measurement using lysimeters, atmometers, energy balance or pan evaporimeter is not usually feasible because it is complex, expensive and time consuming. Therefore, relevant indirect methods such as FAO–56 Penman–Monteith (PM), Priestly Taylor (PT), Blaney–Morin Nigeria …
Published in Emerging Trends in Chemical Engineering · Vol. 9, Issue 1, 2022 · pp. 45–54 Read article
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Production of Polymer Composite using Thermoplastics, Sharp Sand and Sawdust: Mix Techniques
Abstract: This research work focuses on producing a polymer composite using a thermoplastic. PET is nonbiodegradable and contribute majorly to water and land pollution in this research work an attempt has been made to utilize PET waste plastic in manufacturing fibre-reinforced polymer composite by combining sawdust which is another waste product from woodwork operations and sand, a major component in construction, whose use is greatly threatening the ecosystem. The fibre-reinforced polymers …
Published in Emerging Trends in Chemical Engineering · Vol. 9, Issue 3, 2022 · pp. 21–29 Read article
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Evaluating EC and TDS Concentration over Temperature Effect for Different Packed Bed Unit Treatment
Abstract: In this research, we evaluated the concentration of Electrical conductivity, Total Dissolved Solid and the effect of Temperature for the different packed bed units set up for treatment. The bio-adsorbents used were plantain stem fiber, banana stem fiber and palm fruit fiber and the investigation was aimed to examine the effect of EC, TDS and temperature on the performance of the bio-adsorbents in a packed bed unit The investigation was …
Published in Emerging Trends in Chemical Engineering · Vol. 10, Issue 3, 2023 · pp. 37–48 Read article
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Performance Comparison of Plantain Stem Fibre, Palm Fruit Fibre and Banana Stem Fibre for Remediation
Abstract: This thesis goes on to show how each bioadsorbent works in a packed bed unit connected in series to remediate or treat contaminated fresh water medium using petroleum hydrocarbons, or crude oil. The purpose of this study was to determine the efficacy of plantain, banana, and palm bunch fibers with diameters of 50 µm, 150 µm, and 200 µm in treating contaminated water media. In each packed bed unit, the …
Published in Emerging Trends in Chemical Engineering · Vol. 10, Issue 3, 2023 · pp. 27–36 Read article