CO2 Capturing from Industrial Flue Gases


Abstract

Due to the ever-increasing cost of energy and more stringent pollution standards for atmospheric emissions, it is desirable to improve absorption processes for the removal of carbon dioxide from flue gas. The research needs have been reviewed for CO2 capture from flue gas by aqueous absorption/stripping. A close-looped absorption/stripping pilot plant with 15 cm ID columns was used to capture CO2 using a new blended amine (AIT 600) solution. Both the absorber and stripper contained 1.5 m of packing. The pilot plant campaign consisted of 27 runs at 9 operating conditions over the period of study. Various absorber temperature, gas and liquid rates and lean CO2 loadings were tested. In this work by using Taguchi statistical method we studied the effect of operating conditions on the CO2 capture efficiency. The operating parameter used in this study consisted of the following: gas flow rate, CO2 mole fraction in feed gas, liquid flow rate and absorber temperature.

Kew words: absorption, stripper, CO2,Global warming, Taguchi

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