Abstract: This study designed a carbon capture pilot-scale system platform with an annual capacity of 1 000 tons based on the flue gas from a biomass fluidized bed boiler, utilizing a “bubbling bed adsorption + vacuum heating desorption” process. The system includes subsystems for flue gas pretreatment, CO2 adsorption, pneumatic conveying, CO2 desorption, and electrical control, all arranged in a skid-mounted configuration. Operational results showed that the system’s flue gas inlet flow rate was 550-650 m3/h with a CO2 concentration of 12%-15%. After adsorption, the outlet CO2 concentration was 0.15%, achieving a CO2 capture and recovery rate of 98.95%, meeting the design requirements. In terms of energy consumption, the system had a total installed power of 110.5 kW, with a regeneration thermal energy consumption of less than 2.07 GJ/t, lower than that of traditional amine-based technologies. The system can operate continuously, the operation is simple, and does not suffer from equipment corrosion or ammonia escape issues. It provides practical reference for the development of the second-generation carbon capture technologies.

Key words: carbon capture, solid amine, technological equipment