Industrial-Scale Synthesis of Green Ammonia over Lanthanum Coated Iron-Based Catalysts under Mild Conditions.
低温条件下でのランタン被覆鉄系触媒によるグリーンアンモニアの工業規模合成 (AI 翻訳)
Xiangru Kong, Chuhang Yin, Jiewei Zhu, Zhongliang Cao, Xuecheng Liu, Cuijuan Zhang, Tieliang Li, Baoshun Zhang, Zeyuan Gao, Minghao Guo, Runchao Qin, Langli Luo, Ang Cao, Yifu Yu
🤖 gxceed AI 要約
日本語
本研究では、再生可能エネルギー由来のグリーンアンモニア合成を低温・変動条件下で実現するため、ランタン（La）被覆鉄系触媒を開発した。La修飾により低温活性と変動耐性が向上し、トンスケールの触媒製造と年間数百トンの実証プラント建設に成功した。これは再生可能エネルギーとアンモニア合成の整合性を高める工業的ブレークスルーである。
English
This paper presents a lanthanum-coated iron-based catalyst that enables green ammonia synthesis under mild, fluctuating conditions matching renewable energy. The catalyst shows improved low-temperature activity and stability against fluctuations. Industrial-scale demonstration with ton-scale catalyst production and a hundred-ton-per-year plant proves its practical viability for flexible green ammonia production.
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
日本は水素・アンモニアの輸入・利用を国家戦略として推進しており、本技術は再生可能エネルギー変動に追従可能なグリーンアンモニア合成法として重要。特に、既存設備との連携や、再エネ余剰電力を活用したアンモニア製造への応用が期待される。
In the global GX context
This work addresses a key bottleneck in green ammonia: matching intermittent renewable power with ammonia synthesis. The catalyst's antifluctuation and low-temperature performance can reduce the cost and complexity of green ammonia, supporting global decarbonization of fertilizer and shipping fuel.
👥 読者別の含意
🔬研究者:Catalyst design strategy for low-temperature, fluctuation-tolerant ammonia synthesis, with detailed dynamics and simulations.
🏢実務担当者:Demonstration of industrially scalable catalyst and plant design for flexible green ammonia production.
🏛政策担当者:Highlights the technical feasibility of integrating green ammonia production with variable renewable energy, supporting hydrogen economy policies.
📄 Abstract（原文）
Recently, there is an increasing interest in utilizing renewable energy to prepare green ammonia under milder conditions. However, existing commercial iron (Fe)-based catalysts require constant operation and harsh reaction conditions, which mismatch the fluctuation and distribution of renewable solar/wind energy. Herein, we proposed a lanthanum (La) modification strategy to improve the antifluctuation and low-temperature ammonia synthesis performance of Fe-based catalyst. Dynamics experiments and theoretical simulations indicate that the introduction of La could enhance the hydrogenation of adsorbed nitrogen atoms, thereby promoting low-temperature activity. A uniform coating of La on surface can prevent the aggregation of iron nanoparticles, thus improving their stability against fluctuations. Moreover, we used the melting technique to prepare ton-scale Fe/La catalysts, in which La was uniformly deposited on Fe particles. Finally, an industrial-scale project for the flexible production of green ammonia with an annual output of hundreds of tons was built by using as-prepared Fe/La catalysts, demonstrating its industrial application value.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1021/acsami.6c06126first seen 2026-06-10 05:22:57
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