本文以數值模擬分析一自熱式甲醇噴霧重組器的啟動速率，與穩態反應的甲醇轉化率與產氫量。所使用的觸媒為Pt/CeO2-ZrO2。甲醇噴霧重組器的「冷機啟動」設定程序為：利用火星塞點燃甲醇，提供熱量使觸媒加熱；再關閉火星塞進行重組反應至穩定狀態。經模擬分析結果，利用霧化器的甲醇重組器冷機啟動時間可有效的縮短至2分鐘內完成。而在穩態的反應分析下，提高空氣入口的溫度，甲醇轉化率雖然不變，然而產氫量卻會小幅的下降。經模擬結果證實，使用噴霧進入反應器，相較於使用氣態進入，噴霧對於冷機啟動上有相當大的時間優勢。並發現了利用點火器燃燒甲醇對於加熱觸媒的可行性，此方法對於重組器減少能量損耗上有突破性的幫助。

The start-up process, methanol conversion and hydrogen production of the auto-thermal reformer (ATR) have been investigated by numerical simulation in the present study. The employed catalyst is Pt/CeO2-ZrO2. For the start-up process of the investigated ATR, the sparking plug is employed to ignite methanol, providing thermal energy and heating up the catalyst. As the catalyst meets the self-sustained condition, the sparking plug is shut down and the reforming reaction proceeds to the stable condition. The simulation results show that the start-up process of ATR takes less than 2 minutes when the methanol atomizer is employed. Under steady operation, increasing the air-inlet temperature has no effect on the conversion rate while it slightly reduces the hydrogen production. The results of simulation indicate that employing the atomizer leads to shorter start-up time than that of the case by gaseous feeding. The feasibility of heating the catalyst by spark ignition has been observed. The technique of spark ignition has significant benefit on the reduction of energy loss for the start-up process of the methanol reformer.

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