本實驗以兩種方式克服油品中自由脂肪酸之問題。
於固體酸觸媒部份，選用 SZA-500 固體酸觸媒同時催化酯化及轉酯化反應。
先選用市售豬油為進料油，於實驗條件為〆醇油莫耳比 12 比 1、觸媒含量為 1wt%、
反應溫度為 150℃，反應時間 2hr，可得約 80%之反應產率々另外，實際使用含自 由脂肪酸之廢食用油於上述反應條件下進行反應，結果顯示，此觸媒催化效率不 受原料油影響，故可選用品質較差之廢食用油為原料油，以達到降低成本目的。
惟其缺點為觸媒無法重複使用。
於兩步驟反應部份，第一步驟酯化反應選用 SZA-500 固體酸觸媒，實驗結果 顯示此觸媒成功地將油品中自由脂肪酸含量降低，使油品適合進行第二步驟鹼觸 媒轉酯化反應々第二步驟固體鹼觸媒選用 Ca(C3H7O3)2，於醇油莫耳比 30 比 1、觸 媒含量 1wt%、反應溫度 60oC 下，可達到約 80%左右產率。此外，在自由脂肪酸 含量 5wt%時，其第一步驟與第二步驟之間不需經過除水步驟々在自由脂肪酸含量 20wt%時，若第一步驟與第二步驟之間無除水步驟，則整體產率下降 10%。
由整體實驗結果來看，此兩種實驗方法反應產率相近。以單純固體酸觸媒來 說，同時進行酯化/轉酯化反應，其實驗操作步驟較為簡易，無需於步驟中分離觸 媒，然而其反應條件需高溫高壓，較不友善々以兩步驟反應來說，先進行酯化反 應再進行轉酯化反應之實驗操作步驟較為繁複，但其所需之反應溫度、壓力較為 溫和，因此若對於未來想要發展以連續式反應器生產生質柴油來說，兩步驟反應 應為較合適之實驗方法。
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個人小傳
欣玫出生於民國 75 年 10 月 1 日，家中除父母之外，還有一對雙胞胎妹妹。
小學就讀於屏東縣東海國小，之後搬家到台南，國、高中皆就讀於聖功女中。於 民國 94 年申請進入臺灣大學化學工程學系，民國 98 年推甄進入臺灣大學化學工 程學系碩士班，並於就學期間，申請交換至瑞典皇家理工學院(KTH Royal Institute of Technology)一學期(2011.08.01~2011.12.31)。