本文对碳捕集利用与封存(carbon capture,utilization and storage,CCUS)专利进行多粒度研究,揭示其发展概况与关键技术发展态势,为CCUS发展部署提供决策支撑.首先,运用专利计量法从时间、地域等方面进行粗粒度分析,解析CCUS发展趋势、技术流动,挖掘技术热点和典型机构.其次,提出关键词抽取与分级合作关系网挖掘方法,获取共词网络与发明人分级合作关系网络.最后,利用Neo4j、Gephi实现CCUS关键技术的细粒度分析与可视化展示.以Innography收录的CCUS专利文献作为数据源,分析发现CCUS技术正处于交错发展期,中美是CCUS技术的领跑者;气体或蒸汽的分离等是CCUS最关键的前沿性技术;CCUS技术的研究机构及发明人呈现出聚集的发展态势.根据分析结果,为CCUS技术发展的战略布局提出建议.
Analysis on Patent Layout and Development Trend of Global CCUS Technology
This paper reveals the development overview and the trend of CCUS(carbon capture,utilization and storage),through the multi-granularity research on its patents,which provides decision support for the appropriate deployment of CCUS.Firstly,we use the patent metering method to conduct a coarse-grained analysis from the aspects of time and region,explain the development trend and technology flow of CCUS,and discover technology hotspots and typical institutions.Secondly,the keyword extraction and hierarchical cooperative relationship network mining method are proposed to obtain the co-word network and inventor hierarchical cooperative relationship network.Finally,we realize fine-grained analysis and visual display of CCUS key technologies by Neo4j and Gephi.Using the CCUS patent collected in Innography as the data source,the analysis found that CCUS is in a staggered development period,and China and the United States are the leaders of CCUS technology.The separation of gas or steam is the most critical cutting-edge technology of CCUS.The research institutions and inventors of CCUS show a gathering development trend.Based on the analysis results,suggestions are put forward for the strategic layout of CCUS technology development.
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