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2026 Vol.20, Issue 1

Research Article

Comparative Techno-Economic Analysis of Hydrogen Production Process Facility and Renewable Energy for Green Ammonia

그린 암모니아를 위한 수소생산 공정설비와 재생에너지 기술-경제적 비교 분석

Ji-Ho Kim1
,
Takuyuki Yoshioka2
,
Jee-Young Kim3
,
Min-Ji Gwon4
,
Hyun-Bae Kim5*
김 지호1
,
요시오카 타쿠유키2
,
김 지영3
,
권 민지4
,
김 현배5*
1Researcher, Graduate School of Engineering, The University of Tokyo, Tokyo, Japan
2Associate Professor, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
3Associate Research Fellow, National Infrastructure & Geospatial Information Research Division, Korea Research Institute for Human Settlements, Sejong, Korea
4Researcher, Department of Biobased Materials, Chungnam National University, Daejeon, Korea
5Assistant Professor, Department of Biobased Materials, Chungnam National University, Daejeon, Korea
1동경대학교 공학대학 연구원
2동경대학교 농업생명과학대학 부교수
3국토연구원 국토인프라·공간정보연구본부 책임연구원
4충남대학교 환경소재공학과 연구원
5충남대학교 환경소재공학과 조교수
*Corresponding Author
28 February 2026. pp. 1-10
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Abstract

We evaluate three commercial-scale routes to green ammonia using a process simulator for a 1,000 t·d⁻¹ plant and report the 2023-USD levelized cost of ammonia (LCOA). The facility integrates an air separation unit with a Haber–Bosch synthesis loop and is coupled to one of three options. Scenario 1 (S1): nuclear power and solid-oxide electrolysis (SOEC); Scenario 2 (S2): solar photovoltaic (PV) power and proton exchange membrane (PEM) electrolysis; Scenario 3 (S3): biomass combined heat and power (CHP) with gasification and CO2 capture. Equipment sizes are set by mass- and energy-balance calculations. Capital expenditure (CAPEX) and operating expenditure (OPEX) are estimated using standard chemical engineering cost methods with sensitivity analyses. Base-case LCOA (USD·t⁻¹) are S1: 539.73; S2: 646.28; S3: 602.35. Best–worst ranges are S1: 470.23–613.08; S2: 576.39–715.82; S3: 535.79–672.31. S1 is broadly applicable where stable heat and electricity enable strong integration, although the SOEC stack remains a risk. S2 is attractive in regions that can supply large quantities of low-cost renewable electricity to satisfy its extreme power demand. S3 is advantageous in the presence of abundant forest resources and supply networks because of its low power consumption. These results suggest that the green ammonia process is crucial for achieving carbon neutrality through regionally adjusted routes.

Keywords
그린 암모니아
그린 수소
재생에너지
바이오매스
공장설비
키워드
Green ammonia
Green hydrogen
Renewable energy
Biomass
Factory facilities
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Information
  • Publisher :Korean Institute of Architectural Sustainable Environment and Building Systems
  • Publisher(Ko) :한국건축친환경설비학회
  • Journal Title :Journal of Korean Institute of Architectural Sustainable Environment and Building Systems
  • Journal Title(Ko) :한국건축친환경설비학회논문집
  • Volume : 20
  • No :1
  • Pages :1-10
  • Received Date : 2025-11-17
  • Revised Date : 2026-01-01
  • Accepted Date : 2026-01-02
  • DOI :https://doi.org/10.22696/jkiaebs.20260001
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