한국- 호주 간 청색수소 공급망 구축 시나리오별 수소 도입 단가 분석
Analyzing the Hydrogen Supply Cost of Various Scenarios for A Blue Hydrogen Supply Chain Between Korea and Australia
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초록
호주와 한국 간 청색수소 공급망 구축을 위한 두가지 시나리오를 가정해 수소 도입 단가를 산출 및비교하였다. 시나리오 1은 호주 내 SMR(steam methane reforming) 설비에서 생산된 청색수소를 한국으로 운송하는 경우이며, 수소의 선박 운송을 위한 저장 방법(액화수소, 암모니아, Liquid organic hydrogen carrier(LOHC))별 단가를 비교하였다. 시나리오 2는 국내 SMR 설 비 에 서 수 소 생 산 시 발생하는 CO2를 한국 또는 호주의 지중저장소에 격리하는 경우로 나누어 단가를 비교하였다. 도입단가의 구성 비용은 기술에 따라 가변적이므로 몬테카를로 시뮬레이션으로 통계적 기반의 평균 도입 단가를 산출하였다. 시나리오 1은 $12.4/kgH2(액화수소), $6.3/kgH2(암모니아), $13.8/kgH2 (LOHC)의 도입 단가를 도출하였다. 시나리오 2는 $13.7/kgH2(국내 CCS), $21.5/kgH2(호주 CCS) 의 도입 단가를 도출하였다. 이를 통해 현재 기술로는 호주에서 청색수소 생산 후 암모니아 형태로국내 도입이 가장 경제적이다.
Abstract
Two scenarios were assumed to analyze the unit price of hydrogen implementation and build a blue hydrogen supply chain between Australia and Korea. Scenario 1 was the case of the unit price for transporting blue hydrogen produced at steam methane reforming (SMR) facilities in Australia to South Korea by three methods. Scenario 2 was the case of the unit price of hydrogen produced through domestic SMR facilities with CO2 sequestration in Korea and Australia, respectively. Considering the various implementations and the unit price depending on the technology level and process efficiency, Monte Carlo simulation was used to calculate the implementation unit prices statistically. For scenario 1, the results were $12.4/kgH2 (liquid hydrogen), $6.3/kgH2 (ammonia), and $13.8/kgH2 (liquid organic hydrogen carrier, LOHC). For scenario 2, they were $21.5/kgH2 (Australia) and $13.7/kgH2 (Korea), depending on CCS site location. This analysis showed that the implementation of blue hydrogen as ammonia in Australia is the most feasible option.
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