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发明公开
CN102977907A 改善的油砂回收及改性方法 无效 - 撤回

改善的油砂回收及改性方法
摘要：
本发明涉及从油砂中回收油成分(沥青)的方法及回收改善质量的沥青的方法，具体涉及应用SAGD技术从油砂中回收质量改善的沥青的方法，该方法包括下述步骤：1)同时注入(a)蒸汽及气体产生物质，或者(b)蒸汽、CO2气体及气体产生物质；2)蒸汽所具有的温度和压力通过CO2气体和气体产生物质传递到包含在油砂中的油成分；3)气体产生物质在高温高压条件下分解而产生气体；4)CO2气体和气体产生物质中生成的气体与沥青相互作用，从而沥青粘度降低；5)高温高压条件下CO2气体和气体产生物质中生成的气体与沥青进行反应。从而与从油砂中回收沥青时仅注入蒸汽的方法相比，提供可大幅改善沥青的质量(quality)的方法。
摘要（英）：

The invention relates to a method for recovering oil component (asphalt) from oil sand and a method for recovering asphalt of improved quality, particularly to a method for recovering asphalt of improved quality from oil sand by application of SAGD technology. The method comprises the following steps: 1) (a) steam and gas generation matter, or (b) steam, CO2 gas and gas generation matter are injected simultaneously; 2) the temperature and pressure of the steam are transmitted to the oil component contained in the oil sand through the CO2 gas and the gas generation matter; 3) the gas generation matter decomposes under high-temperature and high-pressure conditions and gas is generated; 4) the gas generated in the CO2 gas and the gas generation matter interacts with the asphalt, and thus the viscosity of the asphalt is reduced; and 5) the gas generated in the CO2 gas and the gas generation matter under high-temperature and high-pressure conditions reacts with the asphalt. Thus, compared with the method in which only steam is injected when asphalt is recovered from the oil sand, the method by which the quality of the asphalt can be substantially improved is provided.

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