当前位置: X-MOL 学术Bioresource Technol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Utilization of acetone-butanol-ethanol-water mixture obtained from biomass fermentation as renewable feedstock for hydrogen production via steam reforming: Thermodynamic and energy analyses
Bioresource Technology ( IF 9.7 ) Pub Date : 2018-04-12
Brajesh Kumar, Shashi Kumar, Shishir Sinha, Surendra Kumar

A thermodynamic equilibrium analysis on steam reforming process to utilize acetone-butanol-ethanol-water mixture obtained from biomass fermentation as biorenewable fuel has been performed to produce clean energy carrier H2 via non-stoichiometric approach namely Gibbs free energy minimization method. The effect of process variables such as temperature (573-1473 K), pressure (1-10 atm), and steam/fuel molar feed ratio (FABE=5.5-12) have been investigated on equilibrium compositions of products, H2, CO, CO2, CH4 and solid carbon. The best suitable conditions for maximization of desired product H2, suppression of CH4, and inhibition of solid carbon are 973 K, 1 atm, steam/fuel molar feed ratio=12. Under these conditions, the maximum molar production of hydrogen is 8.35 with negligible formation of carbon and methane. Furthermore, the energy requirement per mol of H2 (48.96 kJ), thermal efficiency (69.13%), exergy efficiency (55.09%), exergy destruction (85.36 kJ/mol), and generated entropy (0.29 kJ/mol.K) have been achieved at same operating conditions.



中文翻译:

利用生物质发酵制得的丙酮-丁醇-乙醇-水混合物作为可再生原料通过蒸汽重整制氢:热力学和能量分析

利用非化学计量方法,即吉布斯自由能最小化方法,对利用生物质发酵制得的丙酮-丁醇-乙醇-水混合物作为生物可再生燃料的蒸汽重整过程进行了热力学平衡分析,以生产清洁能源载体H 2。过程变量如温度(573-1473 K),压力(1-10大气压),并且蒸汽/燃料摩尔进料比(效应˚F ABE = 5.5-12)已经研究上的产品,H平衡组成2, CO,CO 2,CH 4和固体碳。最大化所需产物H 2,抑制CH 4的最佳条件和对固体碳的抑制为973 K,1 atm,蒸汽/燃料摩尔进料比= 12。在这些条件下,氢气的最大摩尔产生量为8.35,而碳和甲烷的生成量可忽略不计。此外,每摩尔H 2的能量需求(48.96 kJ),热效率(69.13%),火用效率(55.09%),火用破坏(85.36 kJ / mol)和产生的熵(0.29 kJ / mol.K)具有在相同的工作条件下实现。

更新日期:2018-04-12
down
wechat
bug