Solvent recovery from rapeseed oil/alcohol mixture with polyethersulfone ultrafiltration membranes was studied.The effects of pressure(0.15-0.3 MPa),mass fraction of rapeseed oil in the mixture(20%-60%) and operation time(10-60 min) on permeate flux and oil retention were evaluated.In addition,the mechanism of permeate flux were investigated.The results showed that increasing pressure resulted in a higher permeate flux,while the oil retention decreased;permeate flux and oil retention decreased with the incr... |