超聲輔助鋁基顆粒水解制氫機(jī)制研究
發(fā)布時間:2018-07-05 03:23
本文選題:鋁顆粒 + 超聲波空化。 參考:《太陽能學(xué)報》2017年04期
【摘要】:研究超聲波輔助下的功率密度和反應(yīng)溫度對鋁顆粒水解過程和產(chǎn)氫特性的影響,并對鋁顆粒水解過程中形貌和表面結(jié)構(gòu)的變化進(jìn)行研究。結(jié)果表明:鋁顆粒在超聲場中可有效縮短反應(yīng)誘導(dǎo)期、提高反應(yīng)速率,且隨著功率密度的增強(qiáng),H2轉(zhuǎn)化率逐漸提升,但當(dāng)功率密度達(dá)23 W/L時出現(xiàn)超聲空化衰竭,H2轉(zhuǎn)化率為86.2%,鋁顆粒由大顆粒逐漸趨于多孔細(xì)顆粒。
[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.
【作者單位】: 遼寧省清潔能源重點實驗室沈陽航空航天大學(xué)能源與環(huán)境學(xué)院;
【基金】:國家自然科學(xué)基金(51576135)
【分類號】:TQ116.2
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本文編號:2098704
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