膜反应器中生物质甘油制氢反应的热力学研究
发布时间：2019-01-16 03:32
【摘要】：采用吉布斯自由能最小化方法对膜反应器中生物质甘油水汽重整制氢反应进行热力学研究,考察了温度、压力、水与甘油进料比(S/G)等条件对反应性能的影响,并分析副产物CO和CH_4的生成、积炭的生成、移去CO_2、O_2的添加等对氢气产量和反应体系平衡组成的影响.结果表明:T=900 K,p=100 k Pa,S/G=12时,在膜反应器中及时移除CO_2可提高氢气产量和选择性,氢气产量高达6.86 mol H_2/摩尔甘油,选择性98.00%;在反应体系中添加少量的O_2(摩尔分数1%)有利于抑制CO和CH_4的生成,而氢气产量几乎不受影响.
[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.
【作者单位】： 江西师范大学化学化工学院;江西师范大学学报杂志社;
【基金】：国家自然科学基金(21566012) 江西省科技厅(20151BAB203025,2015BDH80012)资助项目
【分类号】：O642;TQ116.2
[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.
【作者单位】： 江西师范大学化学化工学院;江西师范大学学报杂志社;
【基金】：国家自然科学基金(21566012) 江西省科技厅(20151BAB203025,2015BDH80012)资助项目
【分类号】：O642;TQ116.2
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