Volume 33: CCUS Technologies for the Carbon Neutrality: Part I

Research on CO2 continuous composite pipeline transportation technology Wang Bai, Liu Yongguang, Ma Teng, Chen Li, Zhang Haomin

Abstract

CO2 transport is a key part of the national ” carbon peak, carbon neutral ” action. At present, it is mainly transported by tankers, which has many problems such as high transportation cost, high traffic risk, low reliability of continuous supply of carbon sources affected by weather and traffic. To this end, some enterprises began to use pipeline transportation to achieve stable carbon source supply, and pipeline transportation has the advantages of low cost and low risk. However, pipeline construction is to use 10 meters of pipes to form a pipeline by welding. The construction period of pipeline construction is long, the construction cost is high, and there are many welding points and many pipeline risk points. In view of the above problems, a continuous composite pipe is formed through thinking innovation and design evaluation. The design of the continuous composite pipe is composed of three layers of thermoplastic polymer layers on both sides of the intermediate metal layer. The thermoplastic polymer of the inner lining layer prevents internal environmental corrosion and transmission medium enhancement layer. The intermediate metal layer resists circumferential stress and axial force, and the outer thermoplastic polymer prevents external corrosion and wear. The continuous composite pipe can be processed into a section of 800 m ~ 1500 m according to different pipe diameters. The construction of CO2 transmission pipeline by this process will greatly reduce the welding point of the pipeline, improve the safety of the pipeline, greatly shorten the construction period, reduce the labor intensity, reduce the construction cost, and provide valuable technical support for the implementation of the national ” carbon peak, carbon neutralization ” action.

Keywords CO2, continuous composite pipe, pipeline transportation