In this article, it is proposed to use aluminum breakage scraps to obtain green hydrogen through the aluminum–water reaction with caustic soda as a catalyst with experimental research. From this exothermic reaction, both hydrogen and the heat generated can be used. Due to the low price of aluminum chips, this allows us to produce green hydrogen below the current price that is obtained using renewable energy sources and electrolyzers. We have also developed a process that is sustainable since it is obtained as alumina and caustic soda waste that can be reused. This alumina obtained, once filtered, has high purity which allows us to produce high-quality primary aluminum without the need to use bauxite and the production of red sludge is also reduced. A comparative study-analysis was carried out between two of the forms in which the most common aluminum is presented in industry to analyze which one performs better by studying key factors such as the hydrogen produced, and the waste generated during the process. Finally, the mathematical model has been defined to be able to control the flow based on different key parameters such as temperature, molarity, and geometry. Undoubtedly, the study that we present represents a milestone for the recovery of metallic aluminum waste and may be of great interest to industries that use aluminum in their processes, such as recuperators, as well as the vehicle and aerospace industries.

中文翻译：

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铝碎屑回收绿色氢气的平衡过程分析。

在本文中，建议通过实验研究，使用铝碎屑通过铝-水与苛性钠作为催化剂的反应获得绿色氢。通过该放热反应，可以使用氢气和所产生的热量。由于铝片的价格低廉，这使我们能够生产低于当前价格的绿色氢，而目前的价格是使用可再生能源和电解槽获得的。我们还开发了一种可持续的工艺，因为它是作为氧化铝和苛性钠废料获得的，可以重复使用。所获得的这种氧化铝一旦过滤，便具有很高的纯度，这使我们无需使用铝土矿就可以生产高质量的原铝，并且减少了红色污泥的产生。在两种最常见的铝形式之间进行了比较研究分析，通过研究关键因素（例如产生的氢气和过程中产生的废物）来分析哪种形式表现更好。最后，数学模型已定义为能够基于不同的关键参数（例如温度，摩尔浓度和几何形状）控制流量。毫无疑问，我们提出的研究代表了金属铝废料回收的一个里程碑，对于在过程中使用铝的行业（如换热器以及汽车和航空航天行业）可能会引起极大的兴趣。数学模型已定义为能够根据不同的关键参数（例如温度，摩尔浓度和几何形状）控制流量。毫无疑问，我们提出的研究代表了金属铝废料回收的一个里程碑，对于在过程中使用铝的行业（如换热器以及汽车和航空航天行业）可能会引起极大的兴趣。数学模型已定义为能够根据不同的关键参数（例如温度，摩尔浓度和几何形状）控制流量。毫无疑问，我们提出的研究代表了金属铝废料回收的一个里程碑，对于在过程中使用铝的行业（如换热器以及汽车和航空航天行业）可能会引起极大的兴趣。