电焊机2025，Vol.55Issue(12)：60-71,12.DOI:10.7512/j.issn.1001-2303.2025.12.09
船用液态CO2存储罐用钢及焊接技术研究进展
Advances in Steel and Welding Technology for Marine Liquid CO2 Storage Tanks
摘要
Abstract
Driven by the global pressure to reduce emissions from shipping and the rapid development of CCUS(Carbon Capture,Utilization,and Storage)technologies,the offshore transport of liquid CO2 and its C-type storage tanks have be-come key equipment for constructing the CCUS value chain.This paper reviews the performance characteristics of typical steels used for liquid CO2 storage tanks both domestically and internationally,such as 16MnDR,15MnNiNbDR,09Mn-NiDR,and P690QL1/QL2.It highlights the future application potential of new materials—high-strength low-alloy steels,nickel-reduced steels,and high-manganese austenitic low-temperature steels—in large-scale storage tanks.In terms of weld-ing,the study summarizes the issues associated with thick-plate welding of high-strength low-temperature steels,including susceptibility to cold cracking,HAZ(heat-affected zone)embrittlement,and high residual stresses.Effective process win-dows are proposed,encompassing control of welding line energy(approximately 10-35 kJ/cm),maintenance of appropriate pre-heat and inter-pass temperatures(130-200℃),and the application of stress-relief heat treatments(250-300℃or 580℃).Engineering practice demonstrates that multi-layer,multi-pass welding combined with moderate heat input and comprehensive stress-relief treatment can achieve reliable joint performance.Future development of liquid CO2 storage tank materials and welding technologies is expected to move toward higher strength,higher toughness,lightweighting,and auto-mation.Further research is needed on novel low-temperature steel systems and intelligent welding technologies to support the large-scale,safe deployment of offshore liquid CO2 storage and transport equipment.关键词
液态CO2存储罐/碳捕集与封存(CCUS)/低温用钢/高强钢焊接Key words
liquid CO2 storage tank/carbon capture,utilization and storage(CCUS)/low-temperature steel/high-strength分类
矿业与冶金引用本文复制引用
ZUO Yue,ZHENG Liyin,AN Tongbang,CAO Zhilong,XU Zixin,MA Chengyong..船用液态CO2存储罐用钢及焊接技术研究进展[J].电焊机,2025,55(12):60-71,12.基金项目
钢铁研究总院青年基金项目(事23H60460B) （事23H60460B）
