隨著全世界人口增加，對於化石燃料的需求也逐漸提高。然而，傳統化石燃料會影響環境，且其並非取之不盡用之不竭。因此，替代能源越來越受到關注。生質能不受地區性的限制，更重要的是其擁有方便儲存以及運輸的優點。由於芒草在台灣的可取得性佳，因此選擇芒草做為本實驗之生質物原料。此外，將使用流體化床並藉由快速熱烈解的方式以生產生質物油。利用改變實驗溫度，進氣量，進料率以及原料大小的方式，以期找到最大的生質物油產量。最低流化速度15公分/秒。實驗結果顯示在各個參數操作底下，溫度450 ˚C，氮氣流量每分鐘98公升，進料率每小時1927公克，物料大小0.45釐米，分別會有最大的生質物油產量。然而，由於物化的特性，由快速熱裂解而得到的生質物油卻不能夠直接使用在運輸燃料中。因此在此份研究中，氫化脫氧反應被使用於優化生質物油。其中鈀碳在反應中作為催化劑。定義脫氧率氫化脫氧反應的效率。生質物油以及優化過後的生質物油將利用氣相層析儀串聯質譜儀以及傅里葉轉換紅外光譜進行定性分析。其中發現，生質物油中含有大量的氫氧化和物，而氫氧化和物在優化後的生質物油中的含量大幅減少，許多烷類也被發現於其中。另外，利用元素分析儀進行脫氧率的定量分析。結果顯示在各個參數操作底下溫度360 ˚C，氫氣壓力1000 磅/英吋平方，液體空間速度，0.25/小時，氫油比1500的實驗操作條件底下，分別脫氧率達到最高。快速熱裂解以及優化反應的氣體產物將利用氣相熱導偵測器進行分析。

Because of the declining of the amount of fossil fuels, renewable fuels get more attention. Fast pyrolysis has been considered an efficient process to produce renewable fuel. However, unfortunately, bio-oil cannot be used as transportation fuel directly because of its physiochemical properties. Therefore, in this study, both fast pyrolysis and its upgraded process are conducted and investigated. Miscanthus, prospering in Taiwan, is used as the feedstock for fast pyrolysis. Hydro-deoxygenation is employed to upgrade bio-oil. For fast pyrolysis, the product distributions are reported along with varying temperature, carrier gas flow rate, feeding rate, feedstock size. Under different variables testing, the optimal experimental conditions for bio-oil yield are at the temperature of 450 ˚C, carrier gas flow rate of 98 L/min, Miscanthus feeding rate of 1927 g/hr, feedstock particle size of 0.45 mm, respectively. For hydro-deoxygenation, Pd/C is chosen as the catalyst. Temperature, pressure, liquid hourly space velocity and "H" _"2" -to-oil ratio were the four experimental factors to be studied. Degree of deoxygenation is defined to evaluate the efficiency of the removal of oxygen in the bio-oil. Under different variables testing, the optimal experimental conditions for degree of deoxygenation are at the temperature of 360 ˚C, hydrogen pressure of 700 psig, the LHSV of 0.25 "h" ^"-1" , and the "H" _"2" -to-oil ratio of 1500. Through GC-MS and FTIR, it can be found that bio-oil contains large quantity of hydroxides; whereas most of them are diminished in the upgraded oil. Besides, upgraded oil contains some alkanes. Gas products from fast pyrolysis and upgrading process were analyzed qualitatively and quantitatively by GC-TCD.

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