Performance Evaluation Of Carbon Dioxide Sequestration In Bubble Column Reactor Using Fine/Micro Bubbles

Abstract

Currently, Carbon Dioxide (Co2) Emissions Are Considered To Be One Of The Major Pollutants Contributing To Global Greenhouse Gas, Causing The Temperature Of The Atmosphere To Rise And Alter The Radioactive Balance Of The Earth. The Main Objective Of This Work Is To Evaluate Performance Of A Lab Scale Mixed Flow Reactor And Test The Carbon Dioxide Absorption Efficiency In The Bubble Column Reactor Using Fine/ Microbubbles. In This Work, The Absorption Of Co2 Using Nh3, Naoh And Mea Solution Were Investigated Experimentally In Mixed Flow Bubble Column Reactor. The Experiments Were Carried Out At The Solvents Concentration Range Of 1 To 7% (V/V), And The Co2Flow Rate Range Of 1 To 2.5l/Min. The Performance Of Those Solvents Was Compared In Terms Of TheCo2 Removal Efficiency. The Experimental Result Showed That Co2 Removal Efficiency Of Ammonia Solution Was Maximum Compared To All The Three Chemicals For Both The Conventional And Microbubble Support Systems. Sodium Hydroxide And Mono-Ethanolamine Solution Take The Next Consecutive Ranks Respectively, Under The Operating Condition Of This Work. The Co2 Removal Efficiency Of All The Solvent Increase With Increasing The Solvent Concentration From 1 To 7% (V/V)And Decrease With Increasing The Co2 Flow Rate From 1 To 2.5l/Min. At The Same Time This Works Tried To Investigate The Effect Of The Bubble Size On The Co2 Removal Efficiency Using Micro-Bubble Assisted System And Conventional Bubble Assisted System. It Was Found Out That Removal Efficiency Of All The Solvents Using Micro-Bubble Assisted System Was Better Than That Of Conventional Bubble Assisted System, Because The Smaller Bubbles Have A Larger Gas-Liquid Specific Surface Area.