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    • 5. 发明申请
    • Process and System For Recovery of Bitumen From Oil Sands
    • 油砂沥青回收工艺及系统
    • US20120305451A1
    • 2012-12-06
    • US13514023
    • 2010-11-15
    • Olusola B. AdeyinkaBrian C. SpeirsPayman Esmaeili
    • Olusola B. AdeyinkaBrian C. SpeirsPayman Esmaeili
    • C10G1/04C10C3/08
    • C10G1/04C10G2300/206C10G2300/301C10G2300/4006C10G2300/44C10G2300/80C10G2300/807
    • A process is described for bitumen extraction from oil sands. Solvent extraction is used, incorporating fines agglomeration to simplify subsequent separation. A high quality bitumen product is formed, having water and solids content that exceeds downstream processing and pipeline requirements. An embodiment of the process comprises combining a first solvent and a bituminous feed to form an initial slurry, which is optionally separated into fine solids and coarse solids. Solids are agglomerated to form an agglomerated slurry. A low solids bitumen extract from the agglomerated slurry is mixed with a second solvent to form a solvent-bitumen low solids mixture, the second solvent having a similar or lower boiling point than the first solvent. The mixture is separated to produce high grade and low grade bitumen extracts. The first and second solvents are recovered from the high grade bitumen extract, leaving a high grade bitumen product.
    • 描述了从油砂中提取沥青的方法。 使用溶剂萃取,结合细粉团聚以简化后续分离。 形成了高质量的沥青产品,具有超过下游处理和管道要求的水和固体含量。 该方法的一个实施方案包括组合第一溶剂和沥青进料以形成初始浆料,其任选分离成细固体和粗固体。 固体团聚以形成附聚浆料。 将来自附聚浆料的低固体沥青提取物与第二溶剂混合以形成溶剂 - 沥青低固体混合物,第二溶剂具有与第一溶剂相似或更低的沸点。 将混合物分离以产生高级和低级沥青提取物。 从高级沥青提取物中回收第一和第二种溶剂,留下高级沥青产品。