清华大学深圳国际研究生院殷振元团队研发出新型二氧化碳海底固碳技术，通过创新应用绿色环保型表面活性剂烷基糖苷（APG），将液态二氧化碳分散成微米级小液滴形成稳定乳液，显著提升了二氧化碳水合物的生成速率1。该技术解决了海水中液态二氧化碳界面传质受限的问题，有助于海底快速形成二氧化碳水合物盖层，降低封存过程中的泄漏风险1。
该研究采用高速搅拌方式将液态二氧化碳打散成微米级小液滴，形成水包二氧化碳乳液，大幅增加了接触面积，从而提升了水合物的生成速率和转化率1。相关成果已发表于《碳捕集科学与技术》期刊，论文第一作者为孙佳钰（2024级硕士生），通讯作者为殷振元1。该项研究得到了国家自然科学基金、科技部外国专家项目、广东省自然资源厅、深圳市科技创新局等机构的支持1。
A research team led by Yin Zhenyuan at Tsinghua University Shenzhen International Graduate School has developed a novel technology for capturing and locking carbon dioxide on the ocean floor.1 The breakthrough addresses a critical challenge in underwater carbon storage by significantly accelerating the formation of CO2 hydrate, a solid crystalline structure that traps carbon and prevents leakage.1
The innovation centers on the use of alkyl polyglycoside (APG), an environmentally friendly surfactant, which disperses liquid CO2 into micrometer-sized droplets through high-speed agitation.1 This process creates a stable water-in-CO2 emulsion that dramatically increases the contact surface area between CO2 and seawater, thereby enhancing both the generation rate and conversion efficiency of CO2 hydrates.1 By improving interfacial mass transfer in seawater—a previously limiting factor—the technology enables faster hydrate layer formation on the seafloor, substantially reducing the risk of CO2 leakage during underwater storage.1
The research, conducted by first author Sun Jiayao, a 2024 graduate student, and corresponding author Yin Zhenyuan, has been published in the journal Carbon Capture Science & Technology.1 The project received support from multiple institutions, including the National Natural Science Foundation of China, the Ministry of Science and Technology's Foreign Experts Program, Guangdong Province's Department of Natural Resources, and Shenzhen's Department of Science and Technology Innovation.1
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