生質柴油為一種兼顧環境保護以及具商業價值的替代性生質能源，而目前商業化的生產，乃是使用均相鹼觸媒進行轉酯化反應，而代轉酯化反應結束，須經過酸鹼中和以及水洗，此舉不利於產品的純化以及分離，並且增加生產成本。若使用非均相之觸媒進行反應，將可簡化生產流程並且使成本降低，使得生質柴油更具有商業化優勢。
本研究主要使用氣舉式反應器搭配固體鹼觸媒進行轉酯化反應，針對醇油比、觸媒用量及反應溫度等反應參數進行探討，並找出較佳之操作條件。由於氣舉式反應器具有良好的熱量及質量傳導能力，故可增加轉酯化生產生質柴油的產率。由實驗結果得知，在醇油比6、觸媒用量5 wt %、溫度60 ℃、空氣流速31 ml/s、內管管徑48 mm、內管管長300 mm條件下，轉酯化反應於15分鐘內，產率可達最大值98 %。

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