Carbon capture and storage (CCS) is a relatively new technology to store pressurized carbon dioxide underground. One of 的 challenges is to keep pipelines and injection tubes safe and prevent corrosion. im体育APP supports corrosion testing of metallic components and examines polymeric materials to reduce 运输 costs and avoid failure.

随着人们对二氧化碳(CO2)对环境的日益关注, reducing carbon emissions into 的 atmosphere is now a major focus for most industrialized countries. Reducing carbon emissions has led to CCS and CCUS (carbon capture, utilization and storage) projects. The projects have predominately been in 的 USA and Canada for Enhanced 石油 Recovery (EOR), 但欧洲的需求在不断增长, 亚洲和中东.

许多处于规划阶段的全球项目是作为试点运作的, 研究, 以及在大多数产生二氧化碳的国家的开发工厂. 大多数CCS/CCUS项目旨在捕获二氧化碳并将其储存在地表以下, 主要在近海地区.

CCS运输管道的腐蚀

用于CCS/CCUS基础设施的金属, 的 corrosion or cracking of 的 carbon steel 运输ation pipelines and carbon steel or corrosion resistant alloy (CRA) injection tubing is 的 primary concern of potentially corrosive environment.

The risk of corrosion/cracking needs to be evaluated on a case-by-case basis since it’s severity will depend on 的 material and 的 specific levels of H2O, O2和CO的酸性气体杂质, H2S, 袜, 致密相CO2中的NOx.

In order to mitigate carbon steel corrosion in CCS 运输 pipelines, 的 use of 腐蚀抑制剂 可以考虑. 然而, 它们的效力将取决于具体条件, 因此需要资格测试.

Corrosion 测试 for CCS infrastructure may be required to evaluate 的 resistance of 的 materials to:

测试高分子材料

主要关注的是聚合物材料在密封、衬里等方面的应用. CCUS的基础设施包括:

  • 的 二氧化碳的物理效应 在这些材料上，比如膨胀和弱化
  • 快速气体减压(RGD) 水泡、开裂、劈裂等损伤
  • 抗化学腐蚀 to 气体 impurities - 的 influence of contaminants on 的 long term integrity of 的 materials
  • 的 高压 and low temperature operating conditions for CCUS can be a limiting factor to 的 use of some polymers
  • 产品损失或环境问题造成的 CO2渗透 通过聚合物密封件和衬垫

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Our centers of excellence for 的 能源 sector are located in 的 US and 欧洲. The locations are fully equipped to perform corrosion testing and electrochemical testing on metallic components and polymeric materials used for CCS/CCUS infrastructure.

For more information about our corrosion testing services for CCS/CCUS projects, 或者要求报价, im体育APP 今天.

The primary sources of CO2 are coal and 气体 power plants, chemical plants (e.g.(化肥生产)、炼油厂和天然气加工. 在大多数CCS/CCUS项目中, 二氧化碳最初被分离(捕获), 然后压缩/处理并运输到存储/使用位置. The 运输ed CO2 is ei的r injected into existing producing oil wells for enhanced oil recovery (EOR) or injected into underground aquifers, 盐洞, 多孔岩层, 或者枯竭的天然气田.

压缩/处理, 运输, and injection operations must consider 的 impact of metallic componsents and 的 degradation of 的 polymeric materials.

用于金属的腐蚀, 的 main factors to consider in 的 CO2 environment are water and 气体eous impurities, 特别是, O2, CO, H2S, 袜, 和氮氧化物. The processing of 的 CO2 is aimed at removing water and impurities; however, depending on 的 source of 的 CO2 low levels of water and impurities can remain in 的 运输ed 气体. 运输和储存, 使过程经济, 二氧化碳是加压的, which results in 的 CO2 气体 phase being changed to a dense phase liquid or supercritical liquid. 任何处于致密相的水都会析出并呈酸性, pH值约为3, 由于碳酸的形成, 从溶解的二氧化碳. O的r acidic species may also be present within 的 water phase resulting from 的 袜 和氮氧化物 impurities 特别是.

白皮书:涉及硫化氢的快速气体减压(RGD)试验

This white paper demonstrates that H2S is a more hostile 气体 than CO2 towards housed elastomeric seals subjected to repeated pressure cycling in RGD tests.

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了解混合流动气体测试

Mixed flowing 气体 (MFG) testing is an accelerated aging test that specifically evaluates 的 corrosion of electrical components due to exposure to atmospheric 气体ses and contaminants.

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Fracture Mechanics in Sour Service: Some Characterization Tests on SENT and SENB Specimen

This article provides better understanding of how 的 SENT test technique influences fracture toughness of pipelines in sour service environments.

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网络研讨会:不锈钢腐蚀

This webinar shows examples of corrosion damage and guides you through how to avoid corrosion in your stainless steel products to prevent product failure and costly repairs.

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