Modeling and Optimization of a Green Ammonia Synthesis Loop Across a Wide Production Load Range
広範囲の生産負荷にわたるグリーンアンモニア合成ループのモデリングと最適化 (AI 翻訳)
Peng Ni, Xudong Zhou, Yi Wang, Xu Ji, Li Zhou
🤖 gxceed AI 要約
日本語
本論文は、変動する再生可能エネルギー電源に対応するため、広範囲の負荷（定格容量の30%～100%）で運転可能なグリーンアンモニア合成ループのモデリングと最適化手法を提案。反応器の高忠実度モデルを構築し、サロゲートモデルを用いて計算効率を向上。年間10万トンのプラントを対象に、反応器入口温度・圧力・アンモニア分離温度を最適化し、低負荷時には入口温度を上げることで熱収支を補償する運転指針を示した。
English
This paper presents a modeling and optimization methodology for a green ammonia synthesis loop designed to operate under a wide range of production loads (30% to 100% of rated capacity) to accommodate intermittent renewable energy sources. A high-fidelity reactor model is developed and integrated with compression and separation units, using surrogate models for computational efficiency. Through a case study of a 100,000 t/year plant, the authors optimize reactor inlet temperature, pressure, and ammonia separation temperature, recommending increased inlet temperature at low loads to compensate for reduced heat release.
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
日本は水素キャリアとしてのアンモニアに強く注目し、石炭火力におけるアンモニア混焼や水素サプライチェーン構築を推進している。本論文の負荷変動対応技術は、再エネ主電源化に向けたアンモニアプラントの柔軟運用に貢献し、日本のグリーン成長戦略とも合致する。
In the global GX context
Globally, green ammonia is recognized as a key hydrogen carrier and decarbonization vector for hard-to-abate sectors. This study addresses the critical challenge of flexible operation under variable renewable supply, providing optimization insights that can improve the economic viability of power-to-ammonia plants and support the integration of high shares of renewables.
👥 読者別の含意
🔬研究者:Provides a surrogate-model-based optimization framework for flexible ammonia synthesis, relevant for process systems engineering and renewable energy integration.
🏢実務担当者:Offers operational guidelines (e.g., increase inlet temperature at low loads) that can help ammonia plant operators improve efficiency and economics under variable renewable power supply.
🏛政策担当者:Demonstrates technical feasibility of flexible green ammonia production, supporting policy incentives for power-to-ammonia as a grid-balancing and decarbonization solution.
📄 Abstract（原文）
“Power-to-ammonia” is widely regarded as a viable solution for large-scale consumption of wind and solar power, as well as for deep decarbonization in the energy and chemical sectors. However, the intermittent nature of renewable energy requires ammonia synthesis systems to operate across a wide and varying range of loads, posing challenges to their economic viability. To address this, we develop a simulation and optimization methodology for ammonia reactor operation under varying loads. Firstly, a high-fidelity reactor model is developed based on the reactor’s structural characteristics by incorporating reaction kinetics and thermodynamic mechanisms. This reactor model is then integrated with compression and separation units. To ensure computational efficiency, surrogate models are developed to approximate the ammonia synthesis and flash separation units. A case study of an ammonia plant with a nominal production rate of 100,000 tons/year is conducted to demonstrate the effectiveness of the proposed method. The results indicate that the feasible operation region of the reactor narrows significantly as the system production load decreases. System operation parameters, including reactor inlet temperature, reactor pressure, and ammonia separation temperature, are optimized for the ammonia synthesis loop over a wide operating window from 30% to 100% of nominal capacity. It is recommended to increase the system inlet temperature as the production load decreases, thereby compensating for the reduced heat release per unit product resulting from the decreased system pressure.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.3390/pr14132055first seen 2026-06-29 06:02:58
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