Refining of biodiesel by ceramic membrane separation
A ceramic membrane separation process for biodiesel refining was developed to reduce the considerable usage of water needed in the conventional water washing process. Crude biodiesel produced by refined palm oil was microfiitered by ceramic membranes of the pore size of 0.6, 0.2 and 0.1 μm to remove the residual soap and free glycerol, at the transmembrane pressure of 0.15 MPa and temperature of 60℃. Results showed that the content of potassium, sodium, calcium, magnesium and free glycerol in the permeate of membrane of pore size of 0.1 μm conformed to the Biodiesel Standard of Europe Union (EN14214). The flux through membrane maintained at 300 L.m-2.h-1 when the volumetric concentrated ratio reached 4. The content of potassium, sodium, calcium, magnesium and free glycerol in the whole permeate was 1.40, 1.78, 0.81, 0.20 mg/kg and 0.0108％, respectively. This ceramic membrane technology was a potential environmental process for the refining of biodiesel.
biodiesel palm oil refining ceramic membrane microfiltration
Yong Wang Xingguo Wang Yuanfa Liu Shiyi Ou Yanlai Tan Shuze Tang
Department of Food Science and Engineering,Jinan University School of Food Science and Technology,Jiangnan University
国际会议
广州
英文
246-253
2008-12-03（万方平台首次上网日期，不代表论文的发表时间）