원전 유기성 연소가스의 알카리 수용액을 이용한 CO2 고정 연구

• 영문명: Study on the Capture of CO2 from Organic Combustion Gas in Nuclear Power Plants Using Aqueous Alkali Solutions
• 발행기관: 한국환경에너지공학회
• 저자명: 이지은 강태진 이민우 이광현 김진호
• 간행물 정보: 『환경에너지공학』제21권 제1호, 19~25쪽, 전체 9쪽
• 주제분류: 공학 > 환경공학
• 파일형태: PDF
• 발행일자: 2026.04.30

국문 초록

This study presents a treatment method for organic radioactive gases (CO, CH₄, etc.) generated during the operation and maintenance of nuclear power plants and a stabilization method for radioactive carbon (¹⁴C). Conventional air cleaning systems in nuclear power plants use TEDA (Triethylenediamine)-impregnated activated carbon adsorbents for iodine removal; however, various organic compounds containing ¹⁴C remain in the saturated adsorption bed after long-term operation. In this study, an integrated process was developed in which organic gases adsorbed on TEDA- impregnated adsorbents are desorbed under vacuum conditions, converted to CO₂ through complete combustion using a Pt-based honeycomb catalyst, and then captured and carbonated using a 1 wt% NaOH aqueous absorption system. Experiments using non-radioactive simulated combustion gas (16.8 vol% CO₂) demonstrated an average CO₂ capture efficiency of 100% with 1 wt% NaOH aqueous solution, and the generated carbonates were converted into stable CaCO₃ solids through CaO addition. This study presents a practical process that can safely treat radioactive organic gases generated during TEDA adsorbent regeneration and reduce radioactive waste disposal volume by solidifying ¹⁴C. Furthermore, it demonstrates the potential for integrating carbon neutrality and radioactive waste management technologies.

목차

1. 서 론

2. 이론적 배경

3. 실험 장치 및 방법

4. 결과 및 고찰

5. 기술적 및 경제적 고찰

6. 결 론

감사의 글

References

키워드

TEDA CO2 capture CO2 mineralization CO2 absorption