Environmental pollutants' transport through tailing extraction process is a big challenge. Hazardous materials in tailings ponds increase with high negative environmental impacts. In this paper, a new type of bench no-water-extracted bitumen process was developed. Factors such as three oil sand ores, namely high, medium, and low-grade in the Athabasca deposits have been exposed to five different light hydrocarbon solvents. The bitumen recovery efficiency of the novel system was investigated with respect to solvent-to-bitumen ratios (S/Bs) as well as solvent and ore properties. The results showed that this novel bench-scale non-aqueous extraction process could significantly reduce water consumption and improve solvent recycling and reduce the release of major hazardous chemicals to oil sands tailings water. The new solvent recovery and bitumen quality for all treated ores were as good as the outcomes from hot water leaching and naphtha froth treatment. When low boiling point solvents (especially cyclopentane) are used to treat high grade ores, the efficiency of bitumen recovery was able to reach over 99 % wt % (by weight %). At the same time, the solvent loss rate could be controlled below 4 barrels (bbl) of solvent per 1000 bbl of extracted bitumen (0.4 %). This indicates the evident effectiveness of non-aqueous extraction of bitumen to mitigate the environmental impacts.

环境污染物在尾矿提取过程中的迁移是一个很大的挑战。尾矿池中的有害物质随着对环境的严重负面影响而增加。在本文中，开发了一种新型的台式无水提取沥青工艺。阿萨巴斯卡矿床中的三种油砂矿，即高、中、低品位等因素已暴露于五种不同的轻烃溶剂。在溶剂与沥青的比率 (S/B) 以及溶剂和矿石性质方面研究了新型系统的沥青回收效率。结果表明，这种新型的小规模非水萃取工艺可以显着降低水消耗，提高溶剂回收率，减少主要危险化学品向油砂尾矿水中的释放。所有处理过的矿石的新溶剂回收率和沥青质量与热水浸出和石脑油泡沫处理的结果一样好。当使用低沸点溶剂（尤其是环戊烷）处理高品位矿石时，沥青回收效率能够达到 99%wt% 以上（按重量百分比计算）。同时，溶剂损失率可以控制在每 1000 桶提取沥青 (0.4 %) 4 桶 (bbl) 以下溶剂。这表明非水提取沥青在减轻环境影响方面具有明显的效果。沥青回收效率能够达到超过 99 % wt %（按重量百分比计算）。同时，溶剂损失率可以控制在每 1000 桶提取沥青 (0.4 %) 4 桶 (bbl) 以下溶剂。这表明非水提取沥青在减轻环境影响方面具有明显的效果。沥青回收效率能够达到超过 99 % wt %（按重量百分比计算）。同时，溶剂损失率可以控制在每 1000 桶提取沥青 (0.4 %) 4 桶 (bbl) 以下溶剂。这表明非水提取沥青在减轻环境影响方面具有明显的效果。