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.
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