中国超临界CO2管道输送技术进展及展望

1.国家管网集团科学技术研究总院分公司;2.中国石油大学(华东)储运与建筑工程学院·山东省油气储运安全重点实验室

CCUS;超临界CO2管道;管道输送;发展规划

Development and prospect of supercritical CO2 pipeline transmission technology in China
ZHANG Duihong1,LI Yuxing2

1.PipeChina Institute of Science and Technology; 2.College of Pipeline and Civil Engineering, China University of Petroleum (East China)//Shandong Key Laboratory of Oil & Gas Storage and Transportation Safety

CCUS, supercritical CO2 pipeline, pipeline transmission, development planning

DOI: 10.6047/j.issn.1000-8241.2024.05.001

备注

【目的】随着“双碳”目标任务持续推进,中国的碳捕集、利用与封存(Carbon Capture, Utilization and Storage, CCUS)作为实现大规模碳减排的托底技术迅速发展,作为CCUS产业链中连接上下游的关键环节——CO2管道工程建设也迎来了黄金发展机遇。然而,中国CO2管道工程建设起步较晚,为了推动中国CO2管道工程建设与发展,亟待对CO2管道输送关键难题与核心技术开展系统攻关,并建立CO2管道输送技术标准体系。【方法】基于文献调研对中国CO2管道输送技术发展现状进行梳理评述,从CO2相特性、管输工艺、管道安全、软件仿真、标准规范等方面总结分析了CO2管道输送技术的重要进展,并根据中国的碳源碳汇分布特点对未来CO2管道规划及管输技术发展提出建议与展望。【结果】与欧美国家相比,目前中国长距离超临界CO2管道工程较为欠缺,仅齐鲁石化—胜利油田的密相CO2管道工程建成投产,此外大庆石化、吉林石化CO2管道工程处于初步设计阶段,未来CO2管道工程建设将持续加速。【结论】中国的超临界CO2管道输送已拥有一定的技术储备,但在中试试验的测试及理论模型改进方面仍需继续攻关,同时应加速推动相关技术的工程示范应用,完善CO2管道输送技术标准体系,以期为未来区域千万吨级CO2管道运输网络以及区域间CO2干线管道规划建设提供全面有力支撑。(图1表1,参[49]
[Objective] Amidst the ongoing pursuit of “dual carbon” goals, Carbon Capture, Utilization, and Storage (CCUS) has rapidly progressed as a foundational technology facilitating significant carbon emission reductions in China. Serving as a crucial link between upstream and downstream activities in the CCUS industry chain, the construction of CO2 pipelines is capitalizing on its golden development opportunities. To propel the construction and growth of CO2 pipelines in China, a relative latecomer in this realm, it is imperative to systematically address key challenges and core technologies associated with CO2 pipeline transmission while establishing a comprehensive technical standard system. [Methods] Literature research was undertaken to review and evaluate the current development status of CO2 pipeline transmission technologies. The significant advancements in CO2 pipeline transmission technologies were summarized through an in-depth analysis of various facets such as CO2 phase behaviors, the pipeline transmission process, pipeline safety, software simulations, and standards and specifications. Recommendations and future outlooks for planning CO2 pipelines and developing pipeline transmission technologies were delineated, considering the distinctive characteristics of carbon sources and sinks in China. [Results] In contrast to European nations and the United States, China faces a shortage in establishing long-distance supercritical CO2 pipelines. Currently, the only operational project is a dense phase CO2 pipeline linking the facilities of Sinopec Qilu Petrochemical Company (Qilu Petrochemical) with Shengli Oilfield. Additionally, the CO2 pipeline projects of PetroChina Daqing Petrochemical Company (Daqing Petrochemical) and Sinopec Jilin Oil Products Company (Jilin Petrochemical) remain in the preliminary design phase. As a result, it is foreseeable that the pace of CO2 pipeline construction in China will increase in the future. [Conclusion] China has developed a certain level of technical expertise for supercritical CO2 pipeline transmission. However, additional endeavors are required to address challenges in pilot testing and enhance theoretical models. Simultaneously, there is a need to advance engineering applications to demonstrate related technologies and enhance the standard system of CO2 pipeline transmission technologies. These steps are crucial to offer extensive and strong support for planning and building regional ten-million-ton CO2 pipeline transmission networks and interregional CO2 trunk pipelines in the future. (1 Figure, 1 Table, 49 References)
·