微型套管式制氢反应器中物流分布的研究  

Research on flow distribution in mini-double-pipe reactor for hydrogen production

作　　者：穆昕[1] 潘立卫[1] 王树东[1] 

机构地区：[1]中国科学院大连化学物理研究所

出　　处：《现代化工》2008年第2期58-61,共4页Modern Chemical Industry

基　　金：国家重点基础研究“973”资助项目(2004CB719506);国家自然科学基金资助项目(2047610320590365)

摘　　要：创新研制了一种结构紧凑、性能高效的套管式微型制氢反应器;可在室温下自启动,甲醇重整制氢过程自热运行;考察了物流分布对反应器性能的影响,应用FLUENT软件对物流分布进行了数值计算,试验结果表明,重整物流分布均匀与否对反应器性能有很大影响;通过改善入口分布器的结构,可以显著提高反应器性能,甲醇转化率最高达到96.4%,产生重整气最大流量为125 L/h,反应器单位体积产氢率为0.61 m3/(h.L)。A novel mini-double-pipe reactor for hydrogen production has been successfully fabricated, which can be started-up at room temperature and carry out methanol autothermal reforming without any external heating. In this paper, the influence of flow distribution on the reactor performance has been studied. A three-dimensional computational fluid dynamic （CFD） model is used to calculate the flow distribution in the distributor outlet. The computations and experimental results indicate that the flow distribution significantly affect the performance of the reactor. By optimizing the distributor structure, the performance of the reactor has been improved significantly. As a result, the maximum conversion of methanol reaches 96.4%. Moreover, the maximum flow rate of 125 L （ STP）/h is obtained at GSV of 3 500 h^-1, and the hydrogen production rate per volume of the reactor is 0.61 m^3/（h·L）.

关 键 词：微型反应器 制氢 甲醇自热重整 物流分布 数值计算 

分 类 号：TQ052.5[化学工程] TQ022.126