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2025 Vol.34, Issue 4 Preview Page

Article Review

Research Trends in Pyrometallurgical Recycling Processes for Spent Fuel Cell Catalysts

건식제련 기술을 활용한 사용 후 연료전지 촉매 재활용 연구동향

Seungyun Han1
,
Eunmi Park2
,
Young-Min Kim1
,
Insung Hwang1
,
Yong Hwan Kim1*
한 승연1
,
박 은미2
,
김 영민1
,
황 인성1
,
김 용환1*
1Materials · Supply Chain R&D Department, Korea Institute of Industrial Technology, Incheon, 21999, Korea
2Incheon Technopark
1한국생산기술연구원 지능화뿌리기술연구소
2인천테크노파크
*Corresponding Author
31 August 2025. pp. 15-30
PDF XML Citation
Abstract

The increasing urgency of global warming and rising carbon emissions has accelerated the demand for sustainable energy technologies. Among these, fuel cells are recognized for their superior energy efficiency and minimal environmental footprint. However, the limited availability and high cost of critical materials, particularly platinum group metals (PGMs) and other valuable metals used in catalysts, present significant challenges, emphasizing the necessity of efficient recycling strategies to address resource scarcity and environmental concerns. Pyrometallurgical processes, characterized by high-temperature operations, have demonstrated effectiveness in impurity removal and high-purity metal recovery. These methods offer distinct advantages, including the elimination of chemical solvents, thus mitigating secondary environmental pollution. This study examines the latest advancements in catalyst recovery processes, a critical component of fuel cells, through pyrometallurgical techniques. Furthermore, the economic implications of these methods are evaluated, highlighting their cost-effectiveness relative to conventional recycling approaches. Finally, this paper explores the broader role of recycling technologies in optimizing resource utilization and advancing the sustainability of energy systems.

Keywords
fuel cells
recycling
catalysts
pyrometallurgical process
Platinum Group Metals

지구 온난화와 탄소 배출량 증가로 인해 친환경적인 에너지원에 대한 수요가 빠르게 증가하고 있다. 이 중에서도 연료전지는 높은 에너지 효율과 환경친화적인 특성으로 주목받고 있다. 그러나 연료전지에 사용되는 소재는 한정적이며, 특히 촉매로 사용되는 백금족 금속(Platinum Group Metals, PGMs) 및 유가금속과 같은 고가의 자원은 자원 고갈과 경제적 부담을 초래할 가능성이 크다. 이에 따라 연료전지 재활용 기술은 자원 소비를 줄이고 환경적 영향을 최소화하기 위한 중요한 해결책으로 떠오르고 있다. 건식제련 공정은 고온에서 불순물을 효과적으로 제거하여 고순도의 금속을 회수하는 기술로서, 화학 용매 사용이 불필요하다는 점에서 환경 오염을 최소화할 수 있는 장점이 있다. 본 논문에서는 연료전지의 주요 구성 요소 중 하나인 촉매의 회수 공정에 초점을 맞추어, 건식제련공정을 활용한 효율적인 재활용 방안의 연구동향을 조사하였다. 또한, 해당 공정의 경제적 이점과 기존 공정 대비 비용 절감 효과와 이를 통해 본 논문에서 소개한 재활용 기술이 자원 절약 및 지속 가능한 에너지 시스템 구축에 미치는 기여 가능성에 대하여 논의하였다.

키워드
연료전지
재활용
촉매
건식제련
백금족 금속
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Feng, Y., Chen, J. and Luo, J., 2024 : Life cycle cost analysis of power generation from underground coal gasification with carbon capture and storage (CCS) to measure the economic feasibility, Resources. Policy, 92, 104996.

10.1016/j.resourpol.2024.104996
Information
  • Publisher :The Korean Institute of Resources Recycling
  • Publisher(Ko) :한국자원리싸이클링학회
  • Journal Title :Resources Recycling
  • Journal Title(Ko) :자원리싸이클링
  • Volume : 34
  • No :4
  • Pages :15-30
  • Received Date : 2025-07-23
  • Revised Date : 2025-08-14
  • Accepted Date : 2025-08-20
  • DOI :https://doi.org/10.7844/kirr.2025.34.4.15
Journal Informaiton Resources Recycling Resources Recycling
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