【摘要】：采用吉布斯自由能最小化方法對(duì)膜反應(yīng)器中生物質(zhì)甘油水汽重整制氫反應(yīng)進(jìn)行熱力學(xué)研究,考察了溫度、壓力、水與甘油進(jìn)料比(S/G)等條件對(duì)反應(yīng)性能的影響,并分析副產(chǎn)物CO和CH_4的生成、積炭的生成、移去CO_2、O_2的添加等對(duì)氫氣產(chǎn)量和反應(yīng)體系平衡組成的影響.結(jié)果表明:T=900 K,p=100 k Pa,S/G=12時(shí),在膜反應(yīng)器中及時(shí)移除CO_2可提高氫氣產(chǎn)量和選擇性,氫氣產(chǎn)量高達(dá)6.86 mol H_2/摩爾甘油,選擇性98.00%;在反應(yīng)體系中添加少量的O_2(摩爾分?jǐn)?shù)1%)有利于抑制CO和CH_4的生成,而氫氣產(chǎn)量幾乎不受影響.
[Abstract]:The Gibbs free energy minimization method was used to study the thermodynamics of hydrogen production from biomass glycerol steam reforming in membrane reactor. The effects of temperature, pressure and the ratio of water to glycerol feed (S / G) on the reaction performance were investigated. The effects of formation of by-product CO and CH_4, formation of carbon deposition and removal of CO_2,O_2 on hydrogen production and equilibrium composition of reaction system were analyzed. The results showed that removal of CO_2 from membrane reactor at 12:00 could increase hydrogen production and selectivity. Hydrogen production reached 6.86 mol / mol glycerol and selectivity was 98.00; Adding a small amount of O _ 2 (mole fraction 1%) to the reaction system can inhibit the formation of CO and CH_4, but the hydrogen production is almost unaffected.
【作者單位】： 江西師范大學(xué)化學(xué)化工學(xué)院;江西師范大學(xué)學(xué)報(bào)雜志社;
【基金】：國(guó)家自然科學(xué)基金(21566012) 江西省科技廳(20151BAB203025,2015BDH80012)資助項(xiàng)目
【分類號(hào)】：O642;TQ116.2

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