Essay On Carbon Dioxide Sequestration

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Experimental investigation of carbon dioxide sequestration using aqueous ethanolamine and aluminium oxide nanofluid
A.Chilambarasana, S.Suresh* b, S. Anandan c a Department of Civil Engineering, National Institute of Technology, Tiruchirappalli b Department of Mechanical Engineering, National Institute of Technology, Tiruchirappalli c Nanomaterials and Solar Energy Conversion Lab, Department of Chemistry, National Institute of Technology
Abstract
Carbon dioxide is a major greenhouse gas with an increase in the concern of climate change and global warming, carbon dioxide sequestration gets a lot of attention in the power plants.. Chemical absorption using amine solvents is the most famous technology for capturing CO2. In this method the flue gas is passed through the aqueous amine solution the CO2 gets absorbed in the solvent forming carbamate precipitate. It has been proved experimentally that nanoparticles added to the solution enhance the CO2 absorption
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Al2O3/ Ethanolamine nanofluid with different volume concentrations 0.005%, 0.01%, 0.05% and 0.1% were prepared. Nanofluid requires ultra-sonication to get a uniform dispersion in the base fluid and stability of the nanofluid. Nanofluid was kept under ultrasonic vibration for 2 hours. No surfactants used during the preparation of the nanofluid as they may be affect the properties of the fluid. Prepared nanofluid stability confirmed by measurement of zeta potential. For experimental purpose, 30% aqueous ethanolamine solution with 0.1% concentration of Al2O3 was taken. The measured zeta potential value is -43.7mV respectively indicates that prepared solution in good stable condition. Viscosity plays an important role in CO2 absorption, Viscosity of the sample was measured using Brooksfield viscometer at 75rpm and room temperature 250C. the result shows that there has been an 8.73% increase of viscosity favoring the CO2

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