[目的/意义] CCUS技术是实现碳减排目标的关键技术,CO₂转化利用是其中重要一环。[方法/过程] 该研究重点关注CO₂在化工转化利用方面的研究发展态势。主要采用文献计量方法,对近20年来CO₂化工转化利用领域的基础数据进行年代切块,设置每10年为一个时间块,从论文产出规模、学术影响力、国际合作、期刊及学科分布、研究主题等方面对比分析该领域两个10年的发展态势。[结果/结论] 当前相关研究主要集中在中美两国,与第一个10年相比,中国在第二个10年的论文规模和学术影响力均超过美国,同时在国际合作网络中取代美国成为网络中心。近10年趋势显示CO₂化工转化利用领域迎来快速发展期,研究制备产品热点从CO₂制可降解塑料转移到CO₂制低烯烃,制备工艺也从加氢热解转移至电化学反应;中国在该领域的研究热点由CO₂制甲酸、合成气向CO₂制甲醇及低烯烃转移,美国的研究热点从CO₂制备氨、甲醇、生物燃料转移至CO₂制备合成气。

[Objective/Significance] CCUS technology is the key technology to achieve carbon reduction goals, among which CO₂ conversion and utilization is an important part. [Method/Process] This study focuses on the development trends of CO₂ chemical conversion and utilization field. The basic data in the field of CO₂ chemical conversion and utilization in the past 20 years were chronodiced by using bibliometric method, and each decade was set as a time block. The development trend of the field in the two decades was compared and analyzed from the aspects of paper output scale, academic influence, international cooperation, journal and discipline distribution, research topics, etc. [Results/Conclusions] The results show that the current research is mainly focused on China and the United States. Compared with the first decade, China surpassed the United States in terms of paper size and academic influence in the second decade, while displacing the United States as the network center in international cooperation networks. The trends in recent ten years shows that the field of CO₂ chemical conversion and utilization ushered in a rapid development period. The research on the preparation of products shifted from CO₂ to degradable plastics to CO₂ to low olefin, and the research on the preparation process also shifted from hydropyrolysis to electrochemical reaction. The research in China focus in this field has shifted from CO₂ to formic acid and syngas to CO₂ to methanol and low olefin, while in the United States, the research focus has shifted from CO₂ to ammonia, methanol and biofuel to CO₂ to syngas.