Experimental investigation on CO2 reduction in exhaust gases of CI engine fuelled with cotton seed oil blend G. Balaji, M.Cheralathan Department of Mechanical Engineering, SRM University, India - 603203 Corresponding Author E-mail ID: firstname.lastname@example.org Abstract Global warming and climate change problems resulting from the greenhouse gas emissions, particularly CO2, have paved the way for the need of research in minimizing the accumulation of carbon dioxide (CO2) in the atmosphere. Though various CO2 capture technologies have been proposed for post combustion processes, Carbon dioxide capture and storage (CCS) by the absorbent is a simple and better method for CO2 emission reduction. The cotton seed oil blend was analyzed in a single cylinder, 4-stroke, computerized water-cooled, diesel engine of 5.2 kW rated power for performance and emission characteristics without and with CCS with different quantity. The quantity of wooden charcoal is varied (50g, 100g and 150g) and the analysis is done. Results show that the CCS with wooden charcoal of 100g reduces the CO2 emission by 18.4% at full load condition. However, the brake thermal efficiency is decreased slightly by 2.4% for CCS due to the back pressure. Keywords: Cotton seed oil, CO2, Emission, Performance, Wooden charcoal.