Reaction Characteristics of Methanol Noncatalytic Partial Oxidation Stabilized by Ceramic Honeycomb
Reaction Characteristics of Methanol Noncatalytic Partial Oxidation Stabilized by Ceramic Honeycomb
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陶瓷蜂窝稳定甲醇非催化部分氧化反应特性
DOI：
10.1080/00102202.2012.707260
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发表时间：
2013
影响因子：
1.9
通讯作者：
Kazuyoshi Nakabe
中科院分区：
文献类型：
--
作者：
Yasuhiro Rai;Hideyuki Kogame;Kazuya Tatsumi;Kazuyoshi Nakabe
采用陶瓷蜂窝结构设计了一种基于甲醇非催化部分氧化（POX）的1kw级紧凑型管式燃料重整器。在不同等效比（φ）和热负荷（qload）的实验条件下，陶瓷蜂窝出口表面的POX稳定；后者表示根据甲醇的较低热值（LHV）计算的转化炉的热输入。在φ = 3.5时，反应器性能最佳，达到绝热火焰温度。确定了反应发生的位置，发现在广泛的热负荷条件下，反应在几乎相同的位置稳定。这种反应的强劲特性是陶瓷蜂窝的一个重要特性。通过在反应区下游插入二次蜂窝，可以使反应区上游移动。这种反应区域的转移是蜂窝绝热特性所带来的能量再生的结果，并导致重整器性能的改善。
A ceramic honeycomb was employed in a 1-kW class compact tubular fuel reformer based on noncatalytic partial oxidation (POX) of methanol. POX was stabilized on the outlet surface of the ceramic honeycomb under various experimental conditions with different equivalence ratios (φ) and thermal loads (qload); the latter represents the thermal input to the reformer calculated from the lower heating value (LHV) of methanol. The best performance of the reformer was achieved at φ = 3.5, and the adiabatic flame temperature was achieved. The location where the reaction occurred was determined, and the reaction was found to stabilize at an almost identical location under a wide range of thermal load conditions. This robust feature of the reaction is a significant characteristic of the ceramic honeycomb. By inserting a secondary honeycomb downstream of the reaction region, it was possible to move the reaction region upstream. This shifting of the reaction region was a result of the energy regeneration attributed to the adiabatic features of the honeycomb, and resulted in an improvement in reformer performance.