Under the background of “carbon peak and carbon neutrality”, traditional chemical enterprises are encountering challenges due to CO₂ emission limitations. CCUS（Carbon Capture, Utilization and Storage） technology emerges as a crucial strategy for addressing CO₂ emissions. To mitigate emissions at the source, chemical companies are turning to CO₂ flue gas capture and recovery technologies, while also exploring ways to integrate these efforts into a cost-effective CCUS industrial chain. To overcome the drawbacks of traditional CO₂ flue gas recovery units, such as large land use, high construction costs, inflexibility, and lengthy construction times, the modular skid-mounted CO₂ recovery technology has been introduced. This innovative approach minimizes upfront investment and accelerates project timelines by modularizing the recovery process, allowing for 100% factory prefabrication and streamlined on-site assembly. The skid-mounted design efficiently organizes pipelines and valves, integrating equipment within each module onto skids, resulting in a fully modular skid-mounted CO₂ recovery unit. Field applications demonstrate significant advantages of the modular skid-mounted approach over conventional methods. For example, a 5×10⁴ tons per year coal-to-hydrogen CO₂ flue gas recovery unit saw a 74.0% reduction in construction costs, a 75.2% decrease in required space, and a 50.0% shorter construction timeline, effectively meeting the objectives of cost reduction and expedited project completion.