关键词: 超重力法, 室内过量CO2, 超重力因子, 脱除率

Abstract: This paper analyzes the advantages and disadvantages of several common methods dealing with indoor CO2. The traditional method of absorption is complex and requires a high degree of sealing device. Membrane separation technology has good selectivity，but at room temperature pressure drop is 5～30kPa and stability is poor. Based on the advantage of running stability and wet bed pressure drop of only 150Pa of high-gravity technology，this paper presents a method of using high-gravity technology to process indoor low concentration excessive CO2. By investigating high-gravity factor，gas-liquid ratio and gas concentration on removal effect，the the appropriate removal experiment condition is as follows：high-gravity factor is 131 and gas-liquid ratio is 60. Under the appropriate removal experiment condition，single cycle absorption rate for indoor different concentrations of CO2 reaches more than 26%，reaction time is less than 0.1s，CO2 concentration decreases from 13750 mg/m3 to less than 800 mg/m3 after 8 cycles and removal rate is up to 90%. Therefore，the high-gravity method to deal with indoor excessive CO2 is feasible in technology.

Key words: high gravity method, indoor excessive CO2, high gravity divisor, removal rate