本研究目的為，探討吸附助效之乙醇蒸氣重組反應器理想之工作區間，其中包括：吸附劑和催化劑之配比、反應器壁溫、各空間速度和前後催化劑非均勻分布方式，所能帶給吸附助效之乙醇蒸氣重組反應器，在出口產品氣組成、氫氣產量以及破出時間上的影響。本次研究使用COMSOL Multiphysics 5.4軟體進行數值模擬與分析，主要將以2- D軸對稱模型，對反應管之熱傳、多孔流場及物種特性進行建模。在不同壁溫的差異上，幾乎都能看到一個單調上升的情況，高壁溫導致更高的乙醇轉化率、氫氣莫爾分率和一氧化碳莫爾分率，反之則甲烷莫爾分率上升伴隨低的乙醇轉化率、氫氣莫爾分率和一氧化碳莫爾分率，這樣的情況也是符合我們在文獻中所看到的情形。在Sorbent/Catalysts重量比1-6之間，我們找到了反應器最高效率的區間為1.5至2.5，而產氫量則是Sorbent/Catalysts越高越多，不過會隨Sorbent/Catalysts的增加趨緩。WHSV = 4.32 h-1為本模型中，能夠產出最大量氫氣的臨界，更大的流速下，產氫量的增加停滯。在模型R2中我們討論分段配置催化劑的差異，在催化劑增量配於後段時，氫氣莫爾分率一致下降。將催化劑增量至前段，能在幾乎相同的產氫量下，提升氫氣的分率。在乙醇蒸氣重組和吸附反應的交互關係中，我們認為尋找適當的工作區間，對於讓吸附反應不至於成為瓶頸是重要的，如此才能獲得高純度的氫氣。

The purpose of this study is to investigate the ideal operating windows of sorption enhanced ethanol steam reformer by trying different sorbent/catalysts ratios, wall temperature of the reactor, space velocity and different front to back end sorbent distribution to see what can be brought to the end product gas composition, hydrogen production and breakthrough time. In the present simulation, we use COMSOL Multiphysics 5.4 to build a 2-D axisymmetric model. Implementing heat transfer, porous media flow field, and species mass transfer modules within the software to this model. At different wall temperatures, the monotonous rise can be seen almost throughout the temperature from 673K to 1073K. Higher wall temperature leads to higher ethanol conversion, H2, and CO mole fraction. On the contrary, lowering the wall temperature sees increasing in CH4 mole fraction in end products and decreasing in ethanol conversion, H2, and CO mole fraction in end products, this is also in line with what we have seen in the literature. Between the sorbent/catalysts weight ratio 1-6, we found the highest efficiency range of the reactor is 1.5 to 2.5. H2 production increases as sorbent/catalysts go higher, however, this trend slows down in the meantime. At WHSV = 4.32 h-1, it is the critical point for the maximum amount of hydrogen that can be produced in this model. For higher flow rates, the increase in hydrogen production stagnates. As more catalysts is moved to the back part of the model R2 more, H2 content drop can be seen across the board. Taking part of catalysts to the front part of the reactor can be beneficial to H2 content with almost equal amount of total hydrogen production. The operating window for the sorption reaction to not be the bottleneck of the system is the key to high H2 content product gas.

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