The absorption of benzene in nonpolar solution was studied in a laboratory-scale of bubble column varying of gas flow rates and gas-to-liquid ratios. A bubble column had a 0.8～1×10-3 m3 total volume (height 1500 mm, diameter 50 mm). Solution analysis was performed by GC-FID and GC-MSD. The objectives of this research were to select the best absorption fluid and to evaluate the mass transfer characteristics under specific conditions of each absorption. The results of this research were follow as:
First, the heat transfer fluid is more efficient than the other nonpolar solution in removing VOC. Second, The benzene removal efficiency improved according to an increasing rate of gas flow. Also, volumetric mass transfer rate of column can be enhanced by increasing gas flow rate. Finally, the relation of gas flow rates, liquid amount, and volumetric mass transfer coefficient was obtained as follows.
Kya=0.5906(Vg/L)0.7611
The following correlation of mass transfer coefficient and efficiency was proposed.
η=0.06078 Kya0.2444

• 최성우(계명대학교 환경과학과) | Sung-Woo Choi Corresponding Author
• 김혜진(계명대학교 환경과학과) | Hye-Jin Kim
• 박문기(경산대학교 환경과학과) | Mun-Ki Park