All Issue

2013 Vol.50, Issue 1

Review

28 February 2013. pp. 170-177
Abstract
According to a recent report by IEA, CCS (Carbon Capture and Storage) could account for up to 20% of cumulative CO2 reductions by 2050. CCS is considered as almost the only technology today that would allow a power sector and energy-intensive industrial sectors such as iron and steel, cement and chemicals and petrochemicals to meet deep emissions reduction goals. Therefore, interest in CCS has been increasing. A prerequisite for the entire CCS project is to find sufficient high-quality storage capacity with sufficient injectivity and containment. The amount of storage capacity available is crucial for planning priorities for CCS but relevant studies in Korea are not sufficient and the term of storage capacity has been used in different and confusing ways. The paper makes observations about methods for estimating storage capacity including US-DOE(Department of Energy) and CSLF(Carbon Sequestration Leadership Forum) works and studies in Korea and draws on internationally accepted definitions of petroleum resources and discusses how equivalent definitions can be applied to the storage resources. Finally, the paper provides recommendations for a CO2 geological storage resources classification system in Korea to prepare upcoming CCS projects. The recommendations are just preliminary and an agreed result among related parties on the classification is needed.
최근 발표된 국제에너지 기구 IEA 보고서에 따르면 2050년까지 CCS(이산화탄소 포집 및 저장) 기술이 전체 온실가스 감축의 최대 20%를 감당할 수 있다고 한다. CCS는 발전이나 철강, 시멘트, 석유화학과 같은 에너지 집약적 사업 분야에서 큰 폭으로 온실가스를 감축할 수 있는 거의 유일한 기술로 국내외에서 CCS에 대한 관심이 크게 증대되고 있다. 이러한 CCS 사업화를 위해서는 포집된 CO2를 지중에 주입할 때 필요한 저장사이트 확보가 선행되어야 하며 선정 기준으로는 저장용량(capacity), 주입성(injectivity), 밀폐성(containment) 등을 꼽을 수 있다. 그 중 저장용량이 핵심요소로 이에 대한 명확한 기준이 없어 국내에서 수행된 사업 사이에서도 혼란이 있는 상태이다. 이에 따라 이 논문에서는 US-DOE나 CSLF 등에서 제안한 저장자원량 평가방법을 살펴보고 석유자원량 분류체계와 마찬가지의 CO2 저장자원 분류체계안의 필요성을 설명하고 이의 초안을 제시하였다. 이 논문에서 제시한 국내 표준 저장자원량은 정부기관 및 관련 부처 뿐 아니라 국내 산, 학, 연에서 논의를 통하여 향후 CCS 사업화 단계에 활용할 수 있는 합의안이 필요하다.
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Information
  • Publisher :The Korean Society of Mineral and Energy Resources Engineers
  • Publisher(Ko) :한국자원공학회
  • Journal Title :Journal of the Korean Society of Mineral and Energy Resources Engineers
  • Journal Title(Ko) :한국자원공학회지
  • Volume : 50
  • No :1
  • Pages :170-177