Alloy dust generated from automobile wheel hub grinding, after entering the wet dust collector, will react with water to produce hydrogen, thus exposing the entire ventilation and dust removal system to potential hydrogen explosion. In this paper, the inhibition mechanism and kinetic characteristics of different concentrations of L-Aspartic acid (L-Asp) on the reaction of Al_0.9Mg_0.1 alloy with water were studied with respect to adsorption morphology, chemical kinetic modeling and molecular dynamics (MD), using L-Asp as the environmentally-safe hydrogen inhibitor. The results show that within a given temperature interval, the hydrogen production rate of Al_0.9Mg_0.1 alloy dust decreases with increasing L-Asp concentration. When the L-Asp concentration exceeds 1.0g/L, the hydrogen evolution rate is almost zero. The calculated results of chemical kinetics agree with the Langmuir adsorption model, confirming that L-Asp is an ideal monolayer physical adsorption system on the surface of alloy particles. The FTIR and MD simulation results show that –NH₂ and –COOH groups in L-Asp molecules contribute greatly to the adsorption. The research results of this paper can help fundamentally avoid hydrogen generation in wet dust collectors and guarantee intrinsic safety.

汽车轮毂磨削产生的合金粉尘进入湿式除尘器后，会与水反应产生氢气，从而使整个通风除尘系统暴露在潜在的氢气爆炸中。在本文中，所述抑制机构和不同浓度对Al的反应的L-天冬氨酸（L-ASP）的动力学特征_0.9镁_0.1合金与水进行了研究相对于吸附形态，化学动力学建模和分子动力学（MD )，使用 L-Asp 作为环境安全的氢抑制剂。结果表明，在给定的温度区间内，Al _0.9 Mg _0.1合金粉尘随着 L-Asp 浓度的增加而减少。当L-Asp浓度超过1.0g/L时，析氢率几乎为零。化学动力学计算结果与Langmuir吸附模型一致，证实L-Asp是一种理想的合金颗粒表面单层物理吸附体系。FTIR 和MD 模拟结果表明L-Asp 分子中的-NH ₂和-COOH 基团对吸附有很大贡献。本文的研究成果有助于从根本上避免湿式除尘器产生氢气，保证本质安全。