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研究设计了一套铝灰水解制氢装置，考察了反应温度、液固体积质量比、搅拌速度及铝灰粒径对铝灰水解制氢过程的影响，并探讨了铝灰水解制氢过程的动力学。结果表明：铝灰水解制氢的最佳工艺条件为反应温度85℃,液固体积质量比10 mL/1 g,搅拌速度130 r/min,铝灰粒径>80目；最佳条件下所得水解渣的主要物相为MgAl2O4、Al(OH)3及Al2O3;铝灰水解制氢过程受化学反应控制，化学表观活化能为67.01 kJ/mol,浸出过程符合Avrami-Erofeyev模型。该法可为铝灰水解制氢工艺过程的设计提供一定技术参考。
Abstract：A set of aluminum dross hydrolysis hydrogen production equipment was experimentally designed and installed.The effects of reaction temperature, liquid volume to solid mass ratio, stirring speed, and aluminum dross particle size on the aluminum dross hydrolysis hydrogen production process were studied, and the kinetics of the aluminum dross hydrolysis hydrogen production process were explored.The results show that the optimal process conditions for aluminum dross hydrolysis hydrogen production are reaction temperature of 85 ℃,liquid volume to solid mass ratio of 10 mL/1 g, and stirring speed of 130 r/min, aluminum dross particle size of >80 mesh.The main phases of the hydrolysis residue obtained under optimal conditions are MgAl2O4,Al(OH)3 and Al2O3.The hydrogen production process from aluminum dross hydrolysis is controlled by chemical reactions, with a chemical apparent activation energy of 67.01 kJ/mol.The leaching process follows the Avrami-Erofeyev model.The experimental results can provide certain technical references for the design of aluminum dross hydrolysis hydrogen production process.
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基本信息:
DOI：10.13355/j.cnki.sfyj.2024.03.007
中图分类号:X758;TQ116.2
引用信息:
[1]刘定平,王海,陈爱桦等.铝灰水解制氢过程动力学研究[J].湿法冶金,2024,43(03):258-264.DOI:10.13355/j.cnki.sfyj.2024.03.007.
基金信息:
国家自然科学基金资助项目(51676072)