Towards the Decarbonization of a Conventional Ammonia Plant by the Gradual Incorporation of Green Hydrogen and Air-Separated Nitrogen
グリーン水素と空気分離窒素の段階的導入による従来型アンモニアプラントの脱炭素化に向けて (AI 翻訳)
João Fortunato, Diogo A. C. Narciso, Henrique A. Matos
🤖 gxceed AI 要約
日本語
本論文は、従来のアンモニア製造プラントにグリーン水素と空気分離窒素を段階的に導入する方法を提案。Aspen Plusを用いたシミュレーションにより、40%導入時にはCO2排出量29.4%削減、天然ガス消費30.1%削減、運転コスト35%減を達成。ただし、市場価格では総運転コストが52%増加する。
English
This paper proposes a gradual incorporation of green hydrogen and air-separated nitrogen into a conventional ammonia plant. Using Aspen Plus simulation, at 40% incorporation, CO2 emissions reduce by 29.4%, natural gas savings of 30.1%, and operational cost reduction of 35% (excluding green feedstock costs). However, total operational costs increase by 52% at current market prices.
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
日本はアンモニアの脱炭素化に注力しており、本論文は既存プラントへのグリーン水素段階的導入の実用的な知見を提供する。コスト課題についても定量的に示しており、政策立案や技術開発の参考となる。
In the global GX context
This paper provides practical insights for decarbonizing existing ammonia plants via gradual green hydrogen adoption, a key strategy for hard-to-abate sectors. The cost analysis highlights economic challenges, relevant for global transition finance and policy.
👥 読者別の含意
🔬研究者:Provides a simulation-based methodology for evaluating gradual green H2 integration in ammonia production.
🏢実務担当者:Offers quantitative cost and emission reduction data for planning green H2 adoption in existing plants.
🏛政策担当者:Shows cost barriers and emission reduction potential, informing subsidies or carbon pricing for green ammonia.
📄 Abstract（原文）
As economies advance towards decarbonization, industry follows suit. The ammonia (NH3) sector heavily relies on the energy- and carbon-intensive Haber-Bosch (HB) process, which accounts for nearly 2% of global CO2 emissions due to its reliance on fossil fuels. Emerging technologies are paving the way for fully renewable NH3 production, although the most mature green process still relies on the HB process, entirely replacing fossil fuels with electrolytic green hydrogen (H2). This work introduces the first developments towards the gradual incorporation of green H2 and air-separated nitrogen (N2) into a conventional NH3 production plant. Using Aspen Plus® V14 for modelling and simulation of Steam Methane Reforming (SMR), different scenarios incorporating 0 to 40 % of these alternative feedstocks were analyzed. An economic objective function is used in each scenario's optimization. To improve green H2 incorporation and ensure operational constraints were met, the simulations used an adapted SMR section proposed in previous work. Preliminary results in the development of this methodology indicate that at 40 % green H2 and 40 % air-separated N2 incorporations, a 29.4 % reduction in carbon emissions was achieved, along with 30.1 % natural gas savings and a 35 % decreased in conventional operational costs (without green H2 and air-separated N2 costs) compared to the base case, where no alternative feedstocks were used. At current market prices, in the same scenario, incorporating alternative feedstocks can increase total operational costs by 52 %.
🔗 Provenance — このレコードを発見したソース
- crossref https://doi.org/10.69997/sct.117762first seen 2026-06-20 06:46:25 · last seen 2026-06-21 05:33:03
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