发明名称 |
METHOD OF FILTERING A SOLVENT-CONTAINING SLURRY STREAM IN A NON-AQUEOUS OIL SAND EXTRACTION PROCESS |
摘要 |
<p>The present invention provides a method of filtering a solvent-containing slurry stream in a non-aqueous oil sand extraction process, the method comprising at least the steps of: (a) providing a solvent-containing slurry stream, the solvent comprising an aliphatic hydrocarbon; (b) depositing the solvent-containing slurry stream provided in step (a) as a filter cake on a filter medium, wherein a top layer of liquid is formed on the filter cake; (c) allowing the top layer of liquid as formed in step (b) to drain through the filter cake such that substantially no liquid remains on top of the filter cake; (d) allowing a gas to partially penetrate into the filter cake thereby obtaining a filter cake with a liquid solvent-depleted top layer; (e) passing liquid solvent through the filter cake with the liquid solvent-depleted top layer as obtained in step (d) thereby obtaining a washed filter cake; (f) removing solvent from the washed filter cake as obtained in step (e) thereby obtaining a solvent-depleted filter cake; and (g) removing the solvent-depleted filter cake as obtained in step (f) from the filter medium.</p> |
申请公布号 |
CA2870451(A1) |
申请公布日期 |
2015.05.08 |
申请号 |
CA20142870451 |
申请日期 |
2014.11.06 |
申请人 |
SHELL CANADA ENERGY;CHEVRON CANADA LIMITED;MARATHON OIL SANDS L.P. |
发明人 |
PLOEMEN, INGMAR HUBERTUS JOSEPHINA;JOVANOVIC, JOVAN;IN'T VEEN, BERNARDUS CORNELIS MARIA;KIFT, JULIAN ROBERT;HOFFMAN, CHERISH MARIE |
分类号 |
B01D33/15;B03B9/02 |
主分类号 |
B01D33/15 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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