摘要
工业革命以来,近1/3人为排放的二氧化碳被海洋吸收,海洋负排放潜力巨大。海洋碱化技术被认为是最具有固碳潜力的海洋负排放技术之一。硅酸盐碱性矿物橄榄石风化速率高,在自然界中具有广泛的分布。海水增汇效率受到橄榄石的溶解速率、扩散速率等因素的影响。基于近海橄榄石海上反应平台,利用清洁能源将橄榄石破碎、研磨加速其溶解,再由海流将高碱度海水进行扩散促进毗邻海域对大气二氧化碳吸收的方法具有广阔的应用前景。随着我国近海油气资源的开发,基于海上油气平台发展橄榄石碱化增汇技术,降低海上碱化反应平台基建成本的同时,可捕集油气生产过程中的二氧化碳,随碱化后海水入海,进一步提高碱性矿物增汇技术的碳封存效能。
Since the industrial revolution,nearly one-third of anthropogenic carbon dioxide emissions have been absorbed by the ocean which has a huge potential for negative emissions.Ocean alkalinity enhancement is considered to be one of the most potential marine negative emission technologies.Olivine which is widely distributed over the world is one of the silicate alkaline minerals and has a high weathering rate.The efficiency of ocean alkalinity enhancement is affected by the dissolution rate and diffusion rate of olivine.On the offshore olivine reaction platform,the method of grinding olivine to accelerate its dissolution based on clean energy and diffusing high-alkalinity seawater through ocean currents to accelerate the absorption of atmospheric carbon dioxide has broad application prospects.With the exploration of offshore oil and gas resources in China,the combination of olivine offshore reaction platform and offshore oil and gas platform can not only save the construction cost of olivine offshore platform,but also capture the carbon dioxide during the producing process of oil and gas,which will further increase the efficiency of carbon sequestration.
作者
郭雪飞
张敏吉
周微
任宏伟
郑力文
苏贝
胡玉斌
刘纪化
GUO Xuefei;ZHANG Minji;ZHOU Wei;REN Hongwei;ZHENG Liwen;SU Bei;HU Yubin;LIU Jihua(CNOOC Research Institute Co.,Ltd.,Beijing 100028,China;CNOOC Tianjin Chemical Research and Design Institute Co.,Ltd.,Tianjin 300131,China;Shandong University,Qingdao 266237,China;Institute of Blue Economic Research in Weihai Co.,Ltd.,Weihai 264400,China)
出处
《海洋开发与管理》
2023年第9期30-36,共7页
Ocean Development and Management
基金
中海石油(中国)有限公司北京研究中心项目(CCL2022RCPS0407RSN
CCL2022RCPS0316RSN)
山东省重点研发计划项目(2020ZLYS04)。
关键词
碱性矿物
橄榄石
碳捕集
橄榄石海上反应平台
Alkaline mineral
Olivine
Carbon capture
Olivine offshore reaction platform
