公开(公告)号：CA914728A

公开(公告)日：1972-11-14

申请号：CA914728D

申请日：1971-02-19

Applicant: CA NAT RESEARCH COUNCIL

Inventor： MCILHINNEY ALLAN E ,  TWEDDLE THOMAS A ,  CAPES CHARLES E

IPC: B65G53/00

Abstract: Particulate material is conveyed upwardly in a gas stream in an elongated casing, with the gas stream having a velocity less than the conventional choking velocity, by having gas and particle stream deflecting elements, such as wire mesh cylinders, randomly disposed along the length of the casing.

公开(公告)号：DE3677870D1

公开(公告)日：1991-04-11

申请号：DE3677870

申请日：1986-08-22

Applicant: CA NAT RESEARCH COUNCIL

Inventor： KUTOWY OLEH ,  TWEDDLE THOMAS A ,  HAZLETT JOHN D

IPC: C10G31/11 ,  C10M175/06 ,  F02B3/06 ,  B01D61/00

Abstract: A method of separating high molecular weight fractions of and inorganic ingredients (eg aluminum, silicon, nickel, phosphorous, boron, vanadium, chromium, copper, titanium, zinc, lead, iron, nitrogen, magnesium, calcium and sulphur) from hydrocarbon liquids (eg spent diesel lubrication oil, crude oil or pipeline blend crude oils and heavy oils, and bitumen), wherein, at a viscosity less than 600 centipoise, the hydrocarbon liquid (2) is passed through a membrane (18), having at least an outer layer (34) on the high pressure side comprising a microporous, polysulfone, polyacrylonitrile, polyamide or polyvinylidene fluoride membrane, at a pressure differential in the range 1 to 100 atmospheres oil to 10 MPa. The microporous structure is such that it provides the said at least outer layer with a molecular cut off less than 20,000 when measured in an aqueous medium. The viscosity of the hydrocarbon liquid may be reduced by heating (14) or a solvent (8) for the hydrocarbon involved in the separation. The microporous structure preferably provides the said at least outer layer with a molecular weight cut off of less than 4,000 when measured in oil.