Methodology to Calculate the CO2 Emission Reduction at the Coal-Fired Power Plant: CO2 Capture and Utilization Applying Technology of Mineral Carbonation

Bong Jae Lee,Soo Young Yun,Jeong Il Lee,Cheol-Soo Lim,Beom Gu Hwang,Young-Kwon Park

doi:10.3390/su12187402

Abstract

This study introduces a novel methodology to calculate the carbon dioxide (CO2) emission reduction related to residual emissions, calculating the CO2 emission reduction through a 2 MW (40 tCO2/day) carbon capture and utilization (CCU) plant installed at a 500 MW coal-fired power plant in operation, to evaluate the accuracy, maintainability, and reliability of the quantified reduction. By applying the developed methodology to calculate the CO2 emission reduction, the established amount of CO2 reduction in the mineral carbonation was evaluated through recorded measurement and monitoring data of the 2 MW CCU plant at the operating coal-fired plant. To validate the reduction, the accuracy, reproducibility, consistency, and maintainability of the reduction should be secured, and based on these qualifications, it is necessary to evaluate the contribution rate of nationally determined contributions (NDCs) in each country. This fundamental study establishes the concept of CCU CO2 reduction and quantifies the reduction to obtain the validation of each country for the reduction. The established concept of the CCU in this study can also be applied to other CCU systems to calculate the reduction, thereby providing an opportunity for CCU technology to contribute to the NDCs in each country and invigorate the technology.

Highlights

Under the Paris Agreement agreed upon in 2015, all countries must submit their nationally determined contributions (NDC), a voluntary reduction goal, to the United Nations (UN), and undergo a performance evaluation every five years for the submitted NDC [1]
For chemical component analysis of the pre-reaction liquid agents, produced before the reaction of CaO, H2 O, and CO2 in the carbon capture and utilization (CCU) facility, a glass disc was made by fusing the agent with sodium tetraborate (Na2 B4 O7 ) or lithium tetraborate (Li2 B4 O7 ), after the loss of ignition (Ig.loss) was measured
The calibration curve of the fluorescence X-ray intensity was drawn according to the content changes in the corresponding components, and the fluorescence X-ray intensity of these components was measured and quantified using wavelength dispersive X-ray fluorescence spectrometry (WD-XRF) and inductively coupled plasma-optical emission spectrometry (ICP-OES)

Summary

Introduction

Under the Paris Agreement agreed upon in 2015, all countries must submit their nationally determined contributions (NDC), a voluntary reduction goal, to the United Nations (UN), and undergo a performance evaluation every five years for the submitted NDC [1]. To reduce their GHG emissions, countries are developing greenhouse gas (GHG) reduction technologies in various fields. South Korea is developing diverse policies and technologies to achieve its set goal, which is to reduce. Korea has arranged a CCUS study to reduce CO2 by 10.3 million tons by 2030 for CCUS technology commercialization [2]

Methods

Results

Conclusion