후단 공정을 고려한 공전해의 (Co-Electrolysis) 가능성과 향후 과제

• 영문명: Opportunities and challenges in co-electrolysis with a focus on downstream processing
• 발행기관: 한국세라믹학회
• 저자명: 오민준(Min Jun Oh) 양성은(Sungeun Yang)
• 간행물 정보: 『세라미스트』제27권 제4호, 415~432쪽, 전체 18쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 2024.12.31

국문 초록

Global warming has intensified in recent years, necessitating abrupt changes in the chemical industry to dramatically reduce CO2 emissions. Electrochemical CO2 conversion is one of the most promising carbon capture and utilization technologies. High-temperature co-electrolysis using solid oxide electrolysis cells (SOECs) efficiently produces syngas (H2 and CO), a key feedstock for synthesizing hydrocarbons. Here, we review the opportunities and challenges of co-electrolysis technology, focusing on its integration with downstream processes. We introduce the basic principles of co-electrolysis, discuss operating conditions affecting syngas composition and carbon deposition, and explore direct methane production under high pressure operation. Various downstream processes utilizing syngas from co-electrolysis are examined, including the Fischer-Tropsch process for e-fuel, e-CO, e-methanol, and e-methane. Then, we summarize the current development status of SOEC and co-electrolysis technology, highlighting industrial efforts for commercialization. Finally, we discuss future prospects, emphasizing the need to improve system durability, enhance economic viability through integration with renewable energy, and develop low-temperature SOECs.

목차

1. 서론

2. 공전해의 작동 원리와 열역학적 논의

3. 작동 조건에 따른 생성물의 열역학적 한계조성

4. 공전해 연계 후단공정

5. SOEC 및 공전해 기술의 산업화 현황

6. 공전해 기술의 향후 전망

7. 결론

CONFLICTS OF INTEREST

ACKNOWLEDGEMENTS

REFERENCES

키워드

Carbon capture and utilization Co-electrolysis CO2 electrolysis Electrochemical CO2 conversion Solid oxide electrolysis cell