Carbon Dioxide Sequestration Report

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 and directly reduce the amount of the solution required thus minimizing the overall cost of the setup. So as per the project carried out

Experimental setup and procedure

The experimental setup consists of a bubble column reactor made of acrylic, carbon dioxide cylinder, magnetic stirrer, graduated burette and a colored liquid tank. The Al2O3/ Ethanolamine

0.01%, 0.05%, 0.1% for this varying concentrations of nano particles the aqueous ethanolamine solution is prepared form various concentration i.e. 10%, 15%, 20%, 25%, 30%. The each of the sample is density is calculated and pH and viscosity are measured. 50 ml of sample is prepared sample is then transferred to bubble column reactor and CO2 is passed at a pressure of 0.5kg/cm2 for 5 seconds and reaction time of 140 seconds is given. The Al2O3/Ethanolamine solution is now transferred to a conical flask and titrated against excess phosphoric acid. Carbon dioxide absorbed is liberated from the sample and it is allowed to pass through a graduated burette,