公开(公告)号：US20140216985A1

公开(公告)日：2014-08-07

申请号：US14245653

申请日：2014-04-04

Applicant: Shell Oil Company

Inventor： Robert Lawrence BLACKBOURN ,  Reinhard Alfred BOTT ,  Steven Paul GILES ,  Bradley Dean KOMISHKE ,  Yicheng LONG ,  Ingmar Hubertus Josephina PLOEMEN ,  Bernardus Cornelis Maria IN' T VEEN

IPC: C10G1/04

CPC classification number: C10G1/045 ,  C10G1/04

Abstract: The present invention is directed to a method which includes the steps of: contacting an oil sand with a suitable solvent to generate a solvated oil sand slurry; separating solvent-diluted bitumen from the solvated oil sand slurry to generate (a) a solvent-diluted bitumen and (b) a slurry with increased solids concentration; filtering the slurry with increased solids concentration; dropping the solids into a pressure reduction vessel wherein the pressure in the pressure reduction vessel is a pressure below a vapor pressure of the solvent; and drying the solids removed from the pressure reduction vessel to produce solids having dry tailings. The method of the present invention may be used to produce a low ash bitumen product and dry tailings from oil sands.

Abstract translation: 本发明涉及一种包括以下步骤的方法：使油砂与合适的溶剂接触以产生溶剂化油砂浆料; 从溶剂化油砂浆中分离溶剂稀释的沥青以产生（a）溶剂稀释的沥青和（b）具有增加的固体浓度的浆料; 以增加的固体浓度过滤浆料; 将固体滴入减压容器中，其中减压容器中的压力是低于溶剂蒸气压的压力; 并干燥从减压容器中除去的固体，以产生具有干尾矿的固体。 本发明的方法可用于生产低灰分沥青产品和来自油砂的干尾矿。