Abstract:

As a kind of unconventional oil resource with abundant reserves, oil sands have attracted more and more attention from all over the world. The coordinated and sustainable development of oil sands treatment industry and ecological environment has become a hot issue that needs to be solved urgently. Therefore, in order to construct a clean, low-carbon, energy-saving and efficient process system and promote the high-quality development of the oil sand treatment industry, the process development of CO₂ in oil sand treatment has formed a global understanding. The application status of CO₂ in oil sand treatment at home and abroad, as well as the numerical simulation and kinetic simulation of CO₂ in oil sand treatment were summarized. Among them, the separation of oil sands under the action of CO₂ response, supercritical CO₂ extraction of oil sands and the application of CO₂ in other processes were mainly discussed. However, the current research is limited to indoors, and the data of industrial test was relatively small, which inevitably limited the industrial application of China's oil sand treatment industry. Therefore, more in-depth research on the process of CO₂ in oil sand treatment was needed to meet the requirements of industrial application. Finally, the application of CO₂ in oil sand treatment was summarized and prospected.

Key words: carbon dioxide, extraction, oil sands treatment, tailings treatment, kinetic simulation, numerical simulation

摘要：

油砂作为一种储量丰富的非常规石油资源，越来越受到世界各国的广泛关注，油砂处理行业和生态环境的协调可持续发展也已成为亟需解决的热点问题。因此，为了建构清洁低碳、节能高效的工艺流程体系，促进油砂处理行业的高质量发展，对CO₂在油砂处理中的工艺发展形成全局性的认识，本文重点总结了国内外研究CO₂在油砂处理中的应用现状以及对CO₂在油砂处理上的数值模拟和动力学模拟概况进行了综述。其中，重点论述了CO₂响应作用下分离油砂、超临界CO₂萃取油砂以及CO₂在其他工艺中的应用现状。但是，目前的研究仅限于室内，而且工业化试验的数据相对较少，这限制了我国油砂处理行业的工业化应用。因此还需要对CO₂在油砂处理中的工艺进行更加深入的研究，以满足工业化应用的要求。最后，对CO₂在油砂处理的应用进行了总结与展望。

关键词: 二氧化碳, 萃取, 油砂处理, 尾矿处理, 动力学模拟, 数值模拟