Comprehensive techno-economic assessment of Green-Ammonia@Scale production

IF 5.3 Q2 ENGINEERING, ENVIRONMENTAL

Cleaner Engineering and Technology Pub Date : 2025-04-09 DOI:10.1016/j.clet.2025.100964

Muhammad Sadiq , Ahmad Mayyas , Pedro R.R. Rochedo

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Abstract

Conventional Ammonia (NH₃) production through steam methane reforming directly emits greenhouse gases like Carbon dioxide (CO₂) and indirectly releases air pollutants such as Nitrogen oxides (NO_x) and Sulfur dioxide (SO₂). Conversely, utilizing renewable-powered water electrolysis enables the production of green-NH₃, providing a cleaner and more environmentally sustainable alternative. A comprehensive techno-economic analysis (TEA) model, incorporating economies of scale, was developed to investigate the feasibility of green-NH₃@Scale production at two prospective locations within the Middle East and North Africa (MENA) region. Aspen Plus, the Hydrogen (H₂) Production Analysis model (H2A), and the System Advisor Model (SAM) were used to simulate and optimize the volumetric production and economic metrics. The findings reveal substantial variability in the levelized cost of green-NH₃ (LCOA), driven by factors such as production scale, electrolyzer type, and power-to-power plant configuration. Depending on the geographical location of the production facility, production scale, and associated economic and financial parameters, the LCOA ranged from $556/t to $680/t. This positions green-NH₃ near competitive parity with blue-NH₃, which has a cost of approximately $400/t. These results underscore the cost-effectiveness of green-NH₃ and its potential as a robust H₂ energy carrier, providing a benchmark to guide investment decisions and inform policy development.

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Green-Ammonia@Scale生产综合技术经济评价

通过蒸汽甲烷重整的传统氨（NH3）生产直接排放二氧化碳（CO2）等温室气体，并间接释放氮氧化物（NOx）和二氧化硫（SO2）等空气污染物。相反，利用可再生动力的水电解可以生产绿色nh3，提供了一种更清洁、更环保的可持续替代方案。一个综合的技术经济分析（TEA）模型，包括规模经济，被开发出来调查在中东和北非（MENA）区域的两个潜在地点生产green-NH3@Scale的可行性。使用Aspen Plus、氢气（H2）生产分析模型（H2A）和系统顾问模型（SAM）来模拟和优化体积生产和经济指标。研究结果表明，受生产规模、电解槽类型和电厂配置等因素的影响，绿色nh3 （LCOA）的平净成本存在显著差异。根据生产设施的地理位置、生产规模以及相关的经济和财务参数，LCOA从556美元/吨到680美元/吨不等。这使得绿色nh3与成本约为400美元/吨的蓝色nh3接近竞争平价。这些结果强调了绿色nh3的成本效益及其作为强大的H2能源载体的潜力，为指导投资决策和政策制定提供了基准。

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