公开(公告)号：US20190242227A1

公开(公告)日：2019-08-08

申请号：US16153400

申请日：2018-10-05

申请人： Canadian Natural Upgrading Limited

发明人： Duane SERATE ,  Haifeng LIU ,  Jose ABREU ,  John AJEDEGBA

IPC分类号： E21B43/24 ,  B01F5/04 ,  B01F5/06

CPC分类号： E21B43/24 ,  B01F5/0451 ,  B01F5/061 ,  B01F2003/04936 ,  B01F2005/0005 ,  B01F2005/0625 ,  B01F2215/0081

摘要： A system and method is provided for direct condensing steam heating of oil sands process slurry streams including viscous bitumen froth and tailings products streams. Slurry viscosities greater than that of water increase cavitation and vibration issues. High solids content exacerbate component erosions. Difficult, and competing, steam and slurry interactions are managed by steam nozzle arrangements and management of steam injection at sub-sonic velocities based on a ratio of the slurry back-pressure Pb and steam supply delivery pressure Po.