摘要
二氧化碳捕集与封存(CCS)是减缓温室气体排放对策的重要组成部分,而建立完善的选择标准,是选择合适封存地点、确保安全封存的前提条件。文章在对已有CO2地质封存选址标准系统调研的基础上,介绍了封存场地选择的一般流程及主要标准,并详细讨论了目前公认的适于封存CO2的不同地质媒质(深部咸水层、油气藏和不可开采的煤层)的关键特征。文章发现:国外现有的地质封存选址标准存在不统一和量化度不高等问题,这对于评估封存潜力和大规模推广CCS项目都产生不利影响。中国现有的CO2地质封存还处在示范阶段,缺少明确的、量化的场地选择标准。文章最后指出我国建立CO2地质储存标准所面临的挑战,并对未来工作给出了政策建议。
Carbon capture and storage （CCS） is an important part of the greenhouse gas mitigation portfolio, while to build a set of perfect criteria is a precondition for appropriate sites selection and safety CO2 storage. Based on the analysis of the existing research of selection criteria for the geological sequestration, this paper introduced the general workflow and major site selection criteria of site selection, then discussed detailed the key characteristics generally accepted of geological media （deep saline aquifers, hydrocarbon reservoirs and uneconomic coal beds） which are technically suit for CO2 storage. It can be concluded that the existing selection criteria overseas for the geological sequestration of CO2 are not enough uniform and quantitative, which will have a negative impact on assessment of storage potential and deployment of CCS projects in large scale. Nowadays, China＇s existing CO2 geological sequestration projects are still in demonstration stage, lack of definite and quantitative site selection standards. The difficulty to develop selection criteria of CO2 geological sequestration in China and suggestions for the future work were elaborated in the end of this paper.
出处
《生态经济》
CSSCI
北大核心
2012年第7期33-38,46,共7页
Ecological Economy
基金
"十一五"国家科技支撑项目(2007BAC03A03)
科技部对欧盟科技合作专项(0808)
