| 发明名称 |
Methods for extracting bitumen from bituminous material |
| 摘要 |
Methods for preparing solvent-dry, stackable tailings. The method can include the steps of adding a first quantity of first solvent to a bitumen material to form a first mixture, separating a first quantity of bitumen-enriched solvent from the first mixture and thereby creating first solvent-wet tailings, adding a quantity of second solvent to first solvent-wet tailings to separate a first quantity of first solvent component from the first solvent-wet tailings and thereby producing second solvent-wet tailings, and adding a quantity of water to the second solvent-wet tailings to separate a first quantity of second solvent component from the second solvent-wet tailings and thereby forming solvent-dry, stackable tailings. |
| 申请公布号 |
US8877044(B2) |
申请公布日期 |
2014.11.04 |
| 申请号 |
US201012956701 |
申请日期 |
2010.11.30 |
| 申请人 |
Shell Canada Energy Cheveron Canada Limited |
发明人 |
Duyvesteyn Willem P. C.;Joshi Mahendra;Kift Julian;Zelnik Dominic J.;Thompson Whip C.;Hoffman Cherish M. |
| 分类号 |
C10G1/00;C10G1/04 |
主分类号 |
C10G1/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method comprising:
passing a first solvent through a first quantity of bituminous material; passing a second solvent through the first quantity of bituminous material; and thereafter passing liquid water through the first quantity of bituminous material wherein the water removes at least 95% of the second solvent by displacing the second solvent; wherein the second solvent comprises a paraffinic solvent and wherein the first solvent is different from the second solvent. |
| 地址 |
Calgary Alberta CA |
