Asphaltene precipitation kinetics and oil sands processing

沥青质沉淀动力学和油砂加工

• 批准号: 451284-2013
• 负责人: Yarranton, Harvey
• 金额: $ 1.82万
• 依托单位: University of Calgary
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=540205
• 关键词: Asphaltene; precipitation; kinetics; oil; sands

Oil sands mining contributes 1.6 million barrels per day of oil to the global oil supply and is a major contributor to the Canadian economy. To date, mined bitumen is recovered using aqueous extraction methods which produce significant amounts of greenhouse gases and require large tailings ponds for the waste water. An alternative is non-aqueous extraction, where a solvent is used instead of water so that the process is less energy intensive and does not require tailings ponds at all. However, there are a number of technical and economic issues to be resolved before non-aqueous extraction becomes a viable technology. One of these issues it that the product bitumen may contain suspended fine inorganic solids which can be problematic for refiners.

油砂开采每天为全球石油供应贡献160万桶石油，是加拿大经济的主要贡献者。迄今为止，开采的沥青是使用水萃取法回收的，这种方法会产生大量的温室气体，并且需要大型尾矿池来处理废水。另一种选择是非水萃取，其中使用溶剂代替水，因此该过程能耗较低，根本不需要尾矿库。然而，在非水萃取成为一项可行的技术之前，还有许多技术和经济问题需要解决。其中一个问题是，产品沥青可能含有悬浮的精细无机固体，这可能是炼油厂的问题。