Theses and Dissertations

Advisor

Amirlatifi, Amin

Committee Member

Heshmati, Mohammad

Committee Member

Elmore, Billy

Date of Degree

8-12-2026

Original embargo terms

Immediate Worldwide Access

Document Type

Graduate Thesis - Open Access

Major

Chemical Engineering

Degree Name

Master of Science (M.S.)

College

James Worth Bagley College of Engineering

Department

Dave C. Swalm School of Chemical Engineering

Abstract

The average global surface temperature is rising, with the 20th-century average being 2.63˚F/1.46˚C above the pre-industrial average, 56.7˚F/13.7˚C. Therefore, research into CO2 capture technology is being explored and implemented as a method to reduce greenhouse gas emissions. The main methods of CO2 capture are pre-combustion, post-combustion, oxy-fuel combustion, and direct air capture. These processes utilize solvent-based absorption, adsorption, membrane separation, and chemical looping combustion to separate CO2 from the exhaust gas. Implementation of this technology can come with increased: material cost, energy penalty, and CAPEX depending on the separation technique, existing equipment, inlet CO2 concentration, and partial pressure, etc.. Financial and legislative incentives are available but only go so far; therefore, optimization of process parameters must be considered. When evaluating CO2 capture, the TRL ranges between 4-9. This present work provides a comprehensive overview of CO2 capturing technologies and techniques currently in use.

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