Study on the Pre-esterification Treatment for the Production of Bio-diesel from High Acidic Oil

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Title:	Study on the Pre-esterification Treatment for the Production of Bio-diesel from High Acidic Oil
Other Titles:	由高酸油製造生質柴油之預酯化前處理
Authors:	周賢民
Contributors:	工學院
Keywords:	Free fatty acid bio-diesel pre-esterification reaction
Date:	2006-06-01
Issue Date:	2012-04-18 14:46:50 (UTC+8)
Abstract:	生質柴油是一項兼具環保友善及永續發展的潔淨能源。目前大部分的生質柴油是由純植物油脂製造而成，使得單位產品價格過高缺乏市場競爭性。由於國內存有許多低價的油脂來源，可作為生質柴油製造的料源，隆低生質柴油的生產成本。不過這些低價的油脂中常含有大理的游離脂肪酸，無法直接以一般鹼製程製造生質柴油，需經由前處理將其降至一定值。酸催化程序是另一種生質柴油的生產方式，其對於游離脂肪酸的甲基酯化具有反應速度快和轉化率高的優點。因此，本研究主要研究利用預酯化反應降低廢食用油中的游離脂肪酸含理，以符合後續生質柴油鹼製程所需的品質條件，以提高生質柴油的總產率。 The bio-diesel is a clean energy with environmental friendly and sustainable development feature. At present, most of bio-diesel is made up of pure vegetable oil, so that the unit price is too high to have market competitiveness. There are many low price oils which can be used to produce bio-diesel and reduce the production cost of bio-diesel domestically. But most of these low price oils contain lots of free fatty acid, the conventional alkaline process can not be used to produce bio-diesel, and the pre-treatment is needed to be done to reduce it to certain value. The acid catalytic process is another way to produce bio-diesel, which has the advantage of fast reaction rate and high conversion ratio for the esterification of methyl group in free fatty acid. So, this study mainly uses pre-esterification reaction to reduce the content of free fatty acid in waste cooking oil, so as to meet the quality condition required for the post production of bio-diesel by alkaline process, and raise total yield of bio-diesel.
Relation:	華岡工程學報 20期 p.13 -17
Appears in Collections:	[College of Engineering] Chinese Culture University Hwa Kang Journal of Engineering

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