生物油模型化合物蒸汽重整制氢的热力学分析

摘要通过生物质快速热解获取生物质油，然后对生物质油进行蒸气重整，是目前生物质制氢的有效途径。生物质油是一种复杂的混合物，它由各种含氧有机物构成。本课题选择生物质油中具有代表性的化合物乙酸，乙醇和呋喃甲醛，并且以甲烷为参照物，使用美国NASA开发的热力学计算程序CEA来计算蒸气重整反应后的平衡组分。研究了反应条件（温度，压力，蒸气与碳的摩尔比S/C）对氢气产率以及其他副产物产率的影响。最后，研究了生物质油模型化合物分子组成对产物产率的影响。通过分析得出，氢气产率随温度升高先增大后减小，随压力增大而减小，随S/C增大而增大。并且氢气产率随重整原料分子中的氢碳比（H/C）正方向变化，随氧碳比（O/C）反方向变化，氢气产率与H/C与O/C呈下列关系：反应温度为650︒C时，H2产率=0。4018*（H/C-1。7O/C）+1。5894。83099

毕业论文关键词热力学计算生物质油模型化合物水蒸气重整制氢

毕业设计说明书外文摘要

Title Thermodynamic analysis of hydrogen production from steam reforming of bio-oil model compounds

Abstract Bio-oil can be produced through fast pyrolysis of biomass。 The steam reforming of bio-oil is an effective way to product hydrogen。 Bio-oil is a complex mixture consists of all kinds of oxygenated hydrocarbons。 This study chooses compounds: ethanol, acetic acid and furfural as the representatives of bio-oil model compounds。 The chemical equilibrium compositions in steam reforming reactions of these compounds as well as methane are gained by thermodynamics calculation program CEA, developed by NASA Lewis Research Centre。 The influence of reaction conditions (temperature, pressure and S/C ratio) to hydrogen and other by-product yield are studied。 Calculation results show that hydrogen yield increases with temperature at first。 When the hydrogen yield reaches its maximum, then yield decreases along with the increased temperature。 Moreover, the hydrogen yield increases with S/C ratio and decreases with pressure。 We can also find that hydrogen yield is proportion to the H/C ratio of reforming feedstock and inversely proportion to O/C ratio。 The relation is as follows: hydrogen yield at 650︒C and 1atm with S/C 3 is equal to 0。4018*(H/C-1。7O/C)+1。5894。

Keywords Thermodynamic calculation Bio-oil model compound Steam reforming Hydrogen production

1 引言（或绪论） 1

1。1 研究背景 1

1。1。1 能源现状 1

1。1。2 氢能简介 2

1。1。3 制氢方法介绍 3

1。1。4 生物制氢简介 4

1。2 研究进展 4

1。2。1 生物质油制备 4

1。2。2 生物质油性质 5

1。2。3 生物质油应用 7

1。2。4 生物质油重整制氢相关研究 7

1。3 本课题研究的目的，意义及内容 8

1。3。1 本课题研究的目的及意义 8

1。3。2 本课题研究的内容 8

2 应用软件原理及过程生物油模型化合物蒸汽重整制氢的热力学分析:http://www.youerw.com/huaxue/lunwen_97757.html