一种环型放射状流化床膜制氢反应器传热特性研究

Study on cold model heat transfer in an annular fluidized bed reactor for hydrogen production with intensive membrane panels

针对天然气水蒸气重整制氢的工业应用,提出了一种膜组件呈环型放射状排列的新型流化床膜反应器的概念设计。该反应器含有一个重整/膜分离区(在下部)及一个氧化区(在上部)。搭建了该反应器的冷态模型,在冷态模型中,膜组件上部的氧化区安装了3支管型电加热器以模拟实际反应器中引入空气进行氧化反应的热源。实验研究了采取不同加热方式时,不同气速下床层的温度分布,实验结果为该种新型反应器的工程设计和模拟提供了依据。

A novel annular fluidized bed reactor with intensive membrane panels is proposed for pure hydrogen production from autothermal steam methane reforming and in-situ hydrogen separation with palladium membrane panels. The reactor has an integrated reforming and hydrogen separation zone at the bottom and an oxidization zone on the top part of the reactor. Three electrical heaters are fabricated and installed in the oxidation zone of the cold model to simulate the introduction of air as heating source. The bed temperature distribution is measured under the various heating modes and superficial gas velocities. The cold model test results can provide basis for industrial design and simulation for such type of reactors.