Acid-catalyzed esterification of Zanthoxylum bungeanum seed oil with high free fatty acids for biodiesel production

• Published in: Bioresource technology Vol. 99; no. 18; pp. 8995 - 8998
• Main Authors: Zhang, Junhua, Jiang, Lifeng
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.12.2008; [New York, NY]: Elsevier Ltd; Elsevier
• Subjects: Acid esterification; acid treatment; acid value; alkali treatment; analysis; Biodiesel; Bioelectric Energy Sources; Biofuel production; Biological and medical sciences; Biotechnology; Catalysis; catalysts; chemistry; Energy; Esterification; fatty acid esters; Fatty Acids, Nonesterified; Fatty Acids, Nonesterified - analysis; Fatty Acids, Nonesterified - metabolism; Free fatty acids; Fundamental and applied biological sciences. Psychology; Industrial applications and implications. Economical aspects; Magnetic Resonance Spectroscopy; metabolism; Methanol; nuclear magnetic resonance spectroscopy; Plant Oils; Plant Oils - chemistry; Plant Oils - metabolism; pretreatment; seed oils; Seeds; Seeds - chemistry; Sulfuric Acids; Sulfuric Acids - metabolism; Temperature; Time Factors; transesterification; yields; Zanthoxylum; Zanthoxylum - metabolism; Zanthoxylum bungeanum; Zanthoxylum bungeanum seed oil; Biodiesel; Zanthoxylum bungeanum seed oil; Acid esterification; Free fatty acids; Dicotyledones; Angiospermae; Rutaceae; Spermatophyta; Vegetable oil; Free fatty acid; Acid catalysis; Esterification

A technique to produce biodiesel from crude Zanthoxylum bungeanum seed oil (ZSO) with high free fatty acids (FFA) was developed. The acid value of ZSO was reduced to 1.16 mg KOH/g from 45.51 mg KOH/g by only one-step acid-catalyzed esterification with methanol-to-oil molar ratio 24:1, H 2SO 4 2%, te...