汽油自热重整制氢反应过程分析  

ON-BOARD HYDROGEN GENERATION BY GASOLINE AUTOTHERMAL REFORMING FOR PEMFC

作　　者：亓爱笃[1] 王树东[1] 付桂芝[1] 吴迪镛[1] 

机构地区：[1]中国科学院大连化学物理研究所,辽宁大连116023

出　　处：《燃料化学学报》2001年第6期519-523,共5页Journal of Fuel Chemistry and Technology

基　　金：国家重点基础研究专项经费 (G2 0 0 0 0 2 64 0 1) ;中国石油化工集团资助 ( 19912 6)~~

摘　　要：汽油空气自热重整制氢是解决质子交换膜燃料电池 (PEMFC)氢源的重要途径。汽油中组分复杂 ,特别是碳原子数、分子结构相差很大时 ,各组分生成焓、汽化热相差很大 ,热力学分析表明 :重整难易有较大差别 ,重整规律各异 ;另一方面 ,它们重整特性又有相似的一面 ,理论氧碳摩尔比均接近于 0 3 1。以正辛烷自热重整反应作为模型反应 ,发现重整过程O2 C、H2 O C都显著影响产氢率 ,高水碳比时产品气废热能否尽量回收也是一个重要因素。理论上 ,在O2 C =0 5、H2 O C =2 0时存在最优氢产率 2 1mol molC ,这时可以得到 4 0mol%的氢气。在本所开发的GH12汽油重整优质催化剂上 ,以固定床反应器模拟正辛烷自热重整反应过程 ,发现实验结果与理论分析吻合良好。据此提出了汽油制氢合理的工艺路线。Hydrogen generation by gasoline autothermal reforming is a promising and important way to provide hydrogen for PEMFC effectively Due to their differences in molecular structure, the number of carbon chain, and their associated properties such as enthalpy etc the reforming behaviors of the components in gasoline are very different from each other On the other hand the enthalpy of each component is relatively small compared with other reactants in the reaction such as CO 2, H 2O, the suitable O 2/C(mol ratio) is similar, about 0 31, to some extend Using octane to stand for gasoline, it was found that the maximum hydrogen productivity of 2 1?mol/mol C, the hydrogen concentration of 40?mol% could be obtained at O 2/C=0 5, H 2O/C=2 0 The reforming temperature could reach 1?073?K The experimental results on the catalyst of GH12, developed by Dalian Institute of Chemical Physics, Chinese Academy of Sciences, verified the theoretical analysis Additionally, the suitable process to produce hydrogen from gasoline is also proposaled

关 键 词：PEMFC 氢源 汽油 自热重整 氢气 质子交换膜燃料电池 

分 类 号：TQ116.28[化学工程—无机化工] TM911.4[电气工程—电力电子与电力传动]