Capturing Carbon Dioxide from Industrial Waste Gases

Abstract

In this study

the capture of CO2 released from an industrial production facility located between the provinces of Batman and Siirt using suitable solutions was modelled using the Aspen Plus simulation. In the study

a methyldiethanolamine (MDEA) solution was chosen as the CO2 capture agent. The process design utilized absorbers

strippers

heat exchangers

flash evaporators

and recirculation loops; different feed rates and tray counts were tested. In the first stage

only 47% of the CO2 could be captured with a feed solution of 400 t/h. However

by increasing the solution flow rate to 832 t/h

approximately 72.14 t/h (95%) of the 76 t/h of CO2 present in the feed stream was successfully captured. Furthermore

it was observed that the number of trays

initially set at 30 in both the absorber and stripper

could be reduced to 21 without any significant change in performance

thereby increasing the cost-effectiveness of the process. The results obtained demonstrate that the CO2 capture method using MDEA solutions in industrial facilities provides high efficiency. However

it is emphasized that CO2 should not only be captured but also utilized in chemical/fuel production. The widespread adoption of such technologies will significantly contribute to Turkey's achievement of future climate goals.