二氧化碳捕集、利用和封存技术应用现状及发展方向

Current Application and Development Priorities of CCUS

简单介绍了二氧化碳捕集、利用和封存主要技术应用现状,并对其净减排量进行了分析。指出二氧化碳驱油(驱煤层气)、微藻制油、制化工产品、矿化及深咸水层埋存技术有较好应用前景,需要加大研发力度解决能耗高问题和通过加大与新能源耦合减少技术实施过程中的化石能源消耗,实现真正意义上的减排。二氧化碳捕集、利用和封存要重视环境风险问题,提高安全、环保技术水平。

This paper introduces the current application of the main carbon capture utilization and storage(CCUS) technologies and analyses their net effects of CO2 emission reduction. It is pointed out that the CO2 technologies in enhanced oil recovery(enhanced coal bed methane recovery), biological and chemical utilization, mineralization and saline aquifer storage may have strategic significance to reduce CO2 emission in the future, but problems, such as high energy consumption, should be solved. One of the innovative technologies that can reduce system energy penalty is to integrate CCUS with renewable energy to ensure CCUS net CO2 reduction effects. Besides, high attention should be paid to environmental risks and safety, and environmental protection measures that ensure the long-term CCUS operation safety need to be strengthened.