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[1]程浩力.国内外CO2管道设计规范要点[J].油气储运,2024,43(01):32-39.[doi:10.6047/j.issn.1000-8241.2024.01.004]
CHENG Haoli.Discussion on essential points in Chinese and foreign standards for CO2 pipeline design[J].Oil & Gas Storage and Transportation,2024,43(01):32-39.[doi:10.6047/j.issn.1000-8241.2024.01.004]
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CHENG Haoli.Discussion on essential points in Chinese and foreign standards for CO2 pipeline design[J].Oil & Gas Storage and Transportation,2024,43(01):32-39.[doi:10.6047/j.issn.1000-8241.2024.01.004]
国内外CO2管道设计规范要点
《油气储运》[ISSN:1000-8241/CN:13-1093/TE]
卷:
43
期数:
2024年01期
页码:
32-39
栏目:
低碳与新能源
出版日期:
2024-01-25
- Title:
-
Discussion on essential points in Chinese and foreign standards for CO
2 pipeline design
- 文章编号:
- 1000-8241（2024）01-0032-08
- Keywords:
- CO2 pipeline; “dual carbon” goals; transmission standards; design codes; dense phase; supercritical
- 分类号:
- TE09
- 文献标志码:
- A
- 摘要:
- 【目的】CO2捕集、利用与封存（Carbon Capture, Utilization and Storage, CCUS）因其可直接降低碳排放而备受关注，CO2管道作为CCUS的重要环节，其建设呈现出快速发展趋势。为了保证CO2管道系统建设与运行的整体安全，深入剖析管道设计规范的相关规定尤为重要。【方法】深入调研了国内外CO2管道主要标准的发展历史及现状，重点分析了CO2管道设计中管道材料选择、CO2脱水、阀室设置、管道放空、管道干燥封存等方面的要点及其需要注意的问题。【结果】基于CO2自身的特殊性质，管道材料的选择应与CO2的输送相态相适应，且能够承受管道减压过程中可能发生的低温影响；CO2管道阀室间距、位置的设置应与管道路由、泄压放空设施的位置等相结合，对各环节进行统筹考虑；密相/超临界CO2泄压及放空会带来低温、地势低洼处聚集等问题，为防止对人员健康及环境造成威胁，CO2管道路由选择应避免通过人口密集区的高地势侧；内腐蚀是CO2管道主要失效形式之一，其主要控制手段为对CO2气源进行充分脱水；由于CO2溶于水的弱酸性质及易形成水合物的特点，对干燥过程中控制管内水气的要求较严格；如果管道不能立即投产，建议对管道注入干燥氮气，并采取0.05～0.07MPa（表压）的微正压封存。【结论】中国CO2管道标准的制定正处于起步阶段，应借鉴国外众多成熟标准的规定，尤其亟需开展CO2管道泄漏试验研究，以获得更多数据支撑，为中国CO2管道的设计、建设及规范制订提供借鉴。（图3，表4，参22）
- Abstract:
- [Objective] Carbon capture, utilization, and storage (CCUS) have gained significant attention due to their direct role in reducing carbon emissions. As a crucial element within the CCUS framework, the construction of CO2 pipelines has consequently experienced rapid development. To ensure the overall safety of pipeline systems during construction and operation, it is crucial to conduct a thorough analysis of the relevant provisions contained in specifications pertaining to the design of CO2 pipelines. [Methods] This study investigated and reviewed the development history and current status of major Chinese and foreign standards applicable to CO2 pipelines, with a specific focus on essential aspects and key points that require attention, including pipe selection, CO2 dehydration, valve chamber placement, as well as pipeline venting, drying, sealing, and storage. [Results] This study yields the following results. To accommodate the unique characteristics of CO2, the selected pipe should be suitable for the transmission phase of CO2 and capable of withstanding low-temperature impacts that may occur during the decompression process. The spacing and location of valve chambers along CO2 pipelines shall be designed, taking into account factors such as the pipeline route, and locations of relief and venting facilities. Proper precautions should be taken to address potential threats to personnel health and the environment, especially in dense-phase/supercritical CO2 relief and venting conditions, which generally involve low temperatures and potential accumulation in low-lying areas. Careful consideration should be given when routing CO2 pipelines to avoid passing through high-lying sides of densely populated areas. Effective dehydration of CO2 gas sources is crucial as a primary control measure against internal corrosion, a major failure mode of CO2 pipelines. Given the weak acidity of CO2 when dissolved in water and its propensity to form hydrates, strict moisture control is essential during the drying process in pipelines. In the absence of immediate commissioning, CO2 pipelines should be filled with nitrogen and sealed to maintain a gauge pressure ranging from 0.05 to 0.07 MPa. [Conclusion] China is currently in the early stage of developing standards for the CO2 pipeline sector, and numerous well-established foreign standards can serve as valuable references. Additionally, conducting experimental research on CO2 pipeline leakage is urgently needed to gather more data, which will enhance the references available for the design, construction, and formulation of CO2 pipeline standards in China. (3 Figures, 4 Tables, 22 References)
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备注/Memo
程浩力，男，1984年生，高级工程师，2011年硕士毕业于辽宁石油化工大学油气储运工程专业，现主要从事油气集输、油气储运及新能源设计等方向的研究工作。地址：北京市海淀区上地信息路8号CPE大厦A203室，100085。电话：010-82778445。Email：cpebj_chenghaoli@163.com
· Received: 2023-02-28 · Revised: 2023-04-19 · Online: 2023-07-11
更新日期/Last Update:
2024-01-25