Patent Details

Patent ID: CN200910010490.2

A method of refining oil

Description: A method of refining oil, raw oil to go through an ultrafiltration membrane (pore size 5 ~ 10NM) in 0.1 ~ 1.0MPA, 25 ~ 55 ℃ under degumming 10 ~ 30H; then by nanofiltration membrane (pore size 0.1 ~ 1.0NM) in 0.1 ~ 1.0MPA, carried out at 25 ~ 55 ℃ deacidification 40 ~ 70H; finally at 220 ~ 250 ℃, 50 ~ 200PA under deodorized to obtain refined oils.For cleaning off the film containing 0.1 ~ 5.0WT% enzyme preparation (a mixture of lipase, phospholipase A and proteolytic enzymes) an aqueous solution of washing, after washing the membrane with water can be reused; deacidification film for cleaning is with 0.1 After ~ 5.0WT% lipase solution was washed with water washing, the membrane reuse. Membrane permeability of the invention attenuation, long membrane life, process stability, good quality of refined oil products.

Patent Details:

DOI: A23D9 / 04 (2006.01) I