망사 충전물을 삽입한 촉매고정층 반응기에서 농도분포에 대하여 연구하였다. 에탄올 탈수 반응이 일어나는 활성알루미나 입자고정층 및 망사 충전물을 삽입한 고정층을 설치하여 유속분포가 다른 조건하에서 농도분포를 측정하였다. 기벽 인접 영역에서의 공극율의 불균일로 인해 유체유속분포와 농도분포가 불균일하지만 고정층에 망사 충전물을 삽입함으로 인해 농도분포를 균일하게 할 수 있었다. 공극율 및 망사 충전물의 삽입효과를 고려한 고정층 내 운동량 및 물질전달 지배방정식의 수치해로 구한 에탄올 출구농도는 에탄올 검류관으로 측정한 실험치와 비스한 값을 보였다.

The concentration distribution in a catalytic packed bed with packing was studied. The resistance to flow in the bed, packed with activated alumina particles to catalyze ethanol degydration reaction, varied by inserting sereen-packing and different size particle section. It was found that the velocity-and concentra-tion-profiles were non-uniform due to the variation of void fraction near the wall. The effect of inserting the screen-packing in the bed enabled velocity-and concentration-profiles to be uniformly distributed over the bed. the governing equations for momentum-and mass-transport in the fixed be and the fixed bed containing a screen-packing were numercasslly solved to demonstrate the effects of the void fraction and the screen-packing inseted in the bed. Effluent ethanol concentrations, measured by ethanol detector tube, were found to be varied with radial position in a manner consistent with the modeling equations.

Chen DH, Jain SC, Can. J. Chem. Eng., 58, 281 (1980)
Chhabra RP, Richardson JF, Chem. Eng. Sci., 40(2), 313 (1985) 
Claus G, Vergnes F, Goff PL, Can. J. Chem. Eng., 54, 143 (1976)
Benenati RF, Brosilow CB, AIChE J., 8, 359 (1962) 
Cohen Y, Metzner AB, AIChE J., 27, 705 (1980)
Haughey DF, Beveridge GSG, Chem. Eng. Sci., 21, 905 (1966) 
Hirata Y, Ito J, J. Chem. Eng. Jpn., 14(4), 277 (1981)
Kim SH, M.S. Dissertation, Korea Univ., Seoul, Korea (1985)
Cloudhary M, Szekely J, Weller SW, AIChE J., 22(6), 1027 (1976) 
Kim BH, Chun HS, HWAHAK KONGHAK, 25(5), 528 (1987)
Winter O, Eng MT, Hydrocarb. Process., 55(11), 125 (1976)
Brandt DE, Oil Gas J., 5, 51 (1979)
Butt JB, Bliss H, Walker CA, AIChE J., 8(1), 42 (1962)