結合吸熱之甲醇重組反應與氫氣燃燒之平板催化反應器之模擬

Modeling for a Catalytic Plate Reactor Coupling Endothermic Methanol Steam Reforming and Hydrogen Combustion

劉昌哲(Chang-Che Liu)

指導教授 ： 張志雄

大同大學/工程學院/化學工程學系所/碩士(2011年)

摘要

本研究以 FLUENT 軟體模擬平板催化反應器內進行吸熱的甲醇水蒸氣重組反應與供熱的氫氣燃燒反應，並以恆溫管式栓塞流重組反應器之反應表現，評估 FLUENT 模擬結果之正確性。在模擬八種不同型式之甲醇重組反應器系統中最佳的設計反應器系統為結合上下二個平板式氫氣燃燒室及中間為平板式含觸媒填充床甲醇重組反應器系統，操作條件為入口溫度250 ℃常壓下操作。恆溫管式栓塞流反應器甲醇轉化率為0.63，以 FLUENT 進行最佳設計反應器系統之三維模擬，若沒有反應物流體進入觸媒顆粒之質傳限制可得到反應器出口甲醇轉化率為
0.60。

關鍵字

甲醇重組 ； 計算流體力學 ； FLUENT 模擬

並列摘要

In this work, tubular and plate reactors for carrying out methanol steam reforming reactions are simulated using Fluent software. The simulation results using Fluent software are confirmed by the performance of an isothermal plug flow tubular reactor in which the methanol steam reforming reactions are performed. Among the eight different reactor designs, the catalytic plate reactor packed with small catalyst particles coupling endothermic methanol steam reforming and hydrogen combustion system give the best performance. The conversion of methanol is 0.63 for the isothermal (250℃) plug flow tubular reactor while that for the catalytic plate reactor packed with small catalyst particles coupling endothermic methanol steam reforming and hydrogen combustion system is 0.6 if the mass transfer resistance between the gas reactants and the catalyst particles is not included in the simulation using Fluent software.

並列關鍵字

methanol reforming ； CFD ； Fluent simulation for reactor

參考文獻

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