超声辅助铝基颗粒水解制氢机制研究

发布时间：2018-07-05 03:23

  本文选题：铝颗粒 + 超声波空化　； 参考：《太阳能学报》2017年04期

【摘要】：研究超声波辅助下的功率密度和反应温度对铝颗粒水解过程和产氢特性的影响,并对铝颗粒水解过程中形貌和表面结构的变化进行研究。结果表明:铝颗粒在超声场中可有效缩短反应诱导期、提高反应速率,且随着功率密度的增强,H2转化率逐渐提升,但当功率密度达23 W/L时出现超声空化衰竭,H2转化率为86.2%,铝颗粒由大颗粒逐渐趋于多孔细颗粒。
[Abstract]:The effects of ultrasonic power density and reaction temperature on the hydrolysis process and hydrogen production characteristics of aluminum particles were studied. The changes of morphology and surface structure of aluminum particles during hydrolysis were studied. The results show that aluminum particles can effectively shorten the induction period and increase the reaction rate in ultrasonic field, and the conversion rate of H _ 2 increases with the increase of power density. However, when the power density is up to 23 W / L, the ultrasonic cavitation depletion rate of H _ 2 is 86.2, and the aluminum particles gradually become porous and fine particles from the large particles.
【作者单位】： 辽宁省清洁能源重点实验室沈阳航空航天大学能源与环境学院;
【基金】：国家自然科学基金(51576135)
【分类号】：TQ116.2
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本文编号：2098704