采用气膜控制体系—NaOH溶液吸收气体中SO2，研究了超重力因子β、空床气速u、喷淋密度q等操作条件对装置的气相体积传质系数kyae的影响和强化效果，验证了分层填料错流超重力装置对气相传质的强化效果，优化了结构，以提高传质效率.结果表明，kyae随β, u和q增加而增加. 在β=55，u=1.53 m/s，q=3 m3/(m2?h)时，kyae可达28 s?1以上，是喷淋塔的10~75倍，单层错流旋转床的1.4~2.2倍，比分裂填料旋转床操作条件温和、设备结构简单、能耗更低. 本超重力装置能有效强化气膜控制传质过程.

In order to verify the intensification effect of LPC?RPB (Layered Packing Cross-flow Rotating Packed Bed) on gas-side mass transfer, optimize the device structure and improve the mass transfer efficiency, the gas-film limited system of the absorption process of SO2 by NaOH solution was applied in this work. The influence of high gravity factor β, empty bed gas velocity u and liquid spray density q on volumetric gas-phase mass transfer coefficients (kyae) and the intensification effect were investigated. The results indicated that the kyae values increased with the increase of β, u and q. Under the conditions of β=55, u=1.53 m/s and q=3 m3/(m2?h), kyae can reach 28 s?1, which is 10~75 times higher than the spray column and 1.4~2.2 times than the traditional cross-flow rotating packed bed. Besides, with the characteristics of milder operating conditions, simpler structure and lower energy consumption compared to SP?RPB (Split Packing Rotating Packed Bed), LPC?RPB showed a good performance of effectively intensifying the gas-film controlled mass transfer process.