Date

4-1-2019

Document Type

Thesis

Degree

Master of Science

Department

Mechanical Engineering

First Adviser

Carlos E. Romero

Abstract

With increasing global energy consumption and need for smart, cleaner electricity, the

world demands responsible power generation. The majority of the world primary power generation

is still based on fossil fuels which contributes to increasing greenhouse gas emissions and

consequent climate change. Integration of solar energy with fossil fuel-based power plants is an

effective solution that can mitigate carbon emissions.

Post-combustion carbon capture is one of the promising technologies that mitigates carbon

dioxide (CO2) emissions, but it has associated with it, heat and electricity requirements for the CO2

capture process and the CO2 compression systems. In solvent-based carbon capture systems, the

required thermal energy is always extracted from low-pressure steam from the power plant to meet

the reboiler duty in the carbon capture reboiler. This results in a decrease in unit efficiency and

power generation. A possible way to overcome this drawback is by employing solar-assisted post

combustion carbon capture which would significantly compensate on the power plant due to

absorbent regeneration. In this approach, a solar thermal system is integrated with an amine-based

carbon capture process.

This study focused conducting a preliminary design on how to couple a concentrated solar

thermal plant to carbon capture pilot-scale plant in Mexico. This thesis also discusses the

advantages of the methodology to get the optimal results of the coupling. This further provides

guidance on the possible ways to fully design and integrate solar thermal energy with post-carbon

capture.

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