Production of biodiesel from soapstock using an ion-exchange resin catalyst |
| |
Authors: | Ji-Yeon Park Deog-Keun Kim Zhong-Ming Wang Joon-Pyo Lee Soon-Chul Park Jin-Suk Lee |
| |
Affiliation: | (1) Korea Institute of Energy Research, 71-2, Jang-dong, Yuseong-gu, Daejeon, 305-343, Korea;(2) Guangzhou Institute of Energy Conversion, No.2 Nengyuan Rd, Wushan, Tianhe, Guangzhou, 510-640, China |
| |
Abstract: | The feasibility of biodiesel production from soapstock containing high water content and fatty matters by a solid acid catalyst
was investigated. Soapstock was converted to high-acid acid oil (HAAO) by the hydrolysis by KOH and the acidulation by sulfuric
acid. The acid value of soapstock-HAAO increased to 199.1 mg KOH/g but a large amount of potassium sulfate was produced. To
resolve the formation of potassium sulfate, acid oil was extracted from soapstock and was converted to HAAO by using sodium
dodecyl benzene sulfonate (SDBS). The maximum acid value of acid oil-HAAO was 194.2 mg KOH/g when the mass ratio of acid oil,
sulfuric acid, and water was 10: 4: 10 at 2% of SDBS. In the esterification of HAAO using Amberylst-15, fatty acid methyl
ester (FAME) concentration was 91.7 and 81.3% for soapstock and acid oil, respectively. After the distillation, FAME concentration
became 98.1% and 96.7% for soapstock and acid oil. The distillation process decreased the total glycerin and the acid value
of FAME produced a little. |
| |
Keywords: | Biodiesel Soapstock Acid Oil Anionic Surfactant High-acid Acid Oil Solid Acid Catalyst |
本文献已被 SpringerLink 等数据库收录! |
|