韓国における直接利用および水素キャリアとしてのアンモニア国際貿易のモデリング
Modeling International Trade of Ammonia for Direct Use and as a Hydrogen Carrier in Korea (原題)
Kwun, Jiwon
🤖 gxceed AI 要約
日本語
韓国を対象に、改修したGCAM-KAISTフレームワークを用いてクリーンアンモニアの国際貿易と利用経路を分析。再生可能電力・水電解と統合した改修ハーバー・ボッシュ法で生産を表現し、海上輸送・貯蔵・クラッキング・直接利用までサプライチェーン全体をモデル化した。予備結果では、液化アンモニアはクラッキング工程を伴っても長距離輸送・貯蔵・既存インフラの優位性から液化水素と競争力を持ち、直接利用は再転換損失を回避し経済性を高めうる。
English
Using a modified GCAM-KAIST framework, this study models clean ammonia supply chains and utilization pathways for Korea's net-zero transition. It represents production via a modified Haber-Bosch process integrated with renewables and electrolysis, and captures shipping, storage, cracking, and direct use. Preliminary results suggest LNH3 may stay cost-competitive with LH2 despite cracking, and direct use improves economics by avoiding reconversion losses.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本も韓国と同様にエネルギー輸入国であり、アンモニア・水素の国際調達と発電・海運での直接利用は日本のGX戦略（水素・アンモニア混焼、GX推進法）と直結する。輸入国間の調達競争やインフラ計画を考える上で示唆が大きい。
In the global GX context
Ammonia as a hydrogen carrier and direct fuel is central to global hard-to-abate decarbonization (power, shipping under IMO rules). This adds quantitative trade-pathway modeling relevant to energy-importing economies and international clean-fuel markets.
👥 読者別の含意
🔬研究者:GCAM拡張によるアンモニア貿易・キャリア経路の統合モデリング手法が参考になる。
🏢実務担当者:アンモニア調達・水素キャリア選択のコスト比較とインフラ計画の示唆を得られる。
🏛政策担当者:エネルギー輸入国のアンモニア貿易戦略・インフラ投資判断に資する定量根拠を提供する。
📄 Abstract（原文）
Achieving carbon neutrality requires large-scale deployment of low-carbon energy carriers and fuels. In Korea, clean ammonia (NH3) is gaining increasing attention due to its potential role in international energy trade and hard-to-abate sectors. Traditionally used as a feedstock for fertilizers and chemicals, ammonia is now emerging as both an efficient hydrogen carrier and a direct carbon-free fuel. Clean ammonia enables long-distance transportation and storage due to its high volumetric energy density and existing infrastructure, while direct utilization pathways may reduce energy losses and additional costs associated with hydrogen cracking. Growing interest in ammonia-fueled shipping amid tightening International Maritime Organization (IMO) regulations and in ammonia combustion technologies in the power sector further underscores its importance in future decarbonization strategies. This study investigates how ammonia supply chains and utilization pathways may evolve under a net-zero transition in Korea using a modified GCAM-KAIST framework. The research extends the current GCAM ammonia representation by incorporating pathways for clean ammonia production, international trade, transportation, storage, cracking, and direct utilization. Clean ammonia production is represented through a modified Haber-Bosch process integrated with renewable electricity and water electrolysis systems. The model further captures the full ammonia supply chain, from international shipping as liquid ammonia (LNH3) to downstream hydrogen reconversion or direct end-use applications. Preliminary results suggest that LNH3 may remain cost-competitive with liquefied hydrogen (LH2) despite additional cracking processes, due to potential advantages in long-distance transportation, storage, and existing ammonia infrastructure. Direct ammonia utilization is also expected to improve economic performance by avoiding energy losses associated with reconversion. The study provides insights into future ammonia trade strategies, infrastructure planning, and clean energy transitions for Korea and other energy-importing countries.
🔗 Provenance — このレコードを発見したソース
- Zenodo https://zenodo.org/records/24162977first seen 2026-11-13 04:13:02 · last seen 2026-11-14 04:12:54
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