Analysis of Hydrogen Production with Flow Baffle Plate Insertion for a Methanol Steam Reforming Reactor

有流場隔板之甲醇蒸汽重組反應器其產氫數值分析

吳文章(Wen-Jang Wu) ； 林森溥(Sen-Puu Lin) ； 朱宏健(Hung-Jang Zhu) ； 陳炎洲(Yen-Cho Chen)

《聯大學報》 9卷1期 (2012/06) Pp. 247-260

https://doi.org/10.29847/JNUU.201206.0013

摘要

本文探討在流場中加入隔板對甲醇蒸汽重組圓管反應器之產氫影響數值分析。重組反應器型式為小型填充床式（packed-bed reactor）。使用Fluent數值軟體進行數值模擬。結果顯示在反應器中置入流場隔板可有效提高氫氣產量，在反應溫度220°C時，置入四組和八組隔板的反應器其產氫量比沒有隔板時分別增加約13.5%和24.2%，造成氫氣產量增加的主要原因為流場隔板使流線呈彎曲形狀，增長甲醇水蒸汽在反應器的停留時間，因此增長反應時間。

關鍵字

產氫 ； 小型甲醇蒸汽重組器 ； 流場隔板

並列摘要

The effects of the flow baffle plate inserted in flow channel on hydrogen production for methanol steam reforming was investigated numerically in this paper. The software of Fluent was used in the numerical simulation of a small-scale packed-bed reactor. The results indicate that the hydrogen production rate can be effectively increased with the flow baffle plates inserted in flow channel of a reactor. In the reaction temperature of 220°C, when the four and eight pairs of baffle plates are inserted in the flow channel of a reactor, their hydrogen production rates are increased about 13.5% and 24.2%, respectively, as compared to that without flow baffle plate. The main reason for the increase of hydrogen production rate is attributed to a longer residence time due to curving streamline by the baffle plate insertion, and longer residence time implies a longer reaction time of the methanol-steam mixture.

並列關鍵字

Hydrogen production ； small-scale methanol steam reformer ； flow baffle plates