무수마레인산 생산을 위한 고정층 촉매 반응기 설계

윤영삼; 구은화; 박판욱

Journal of the Korean Industrial and Engineering Chemistry, Vol.10, No.3, 467-476, May, 1999

Export Citation

무수마레인산 생산을 위한 고정층 촉매 반응기 설계

Design of the Fixed-Bed Catalytic Reactor for the Maleic Anhydride Production

윤영삼, 구은화, 박판욱

초록

공기에 의한 n-butane의 산화로부터 무수마레인산을 합성하는 고정층 촉매 반응기의 거동을 조사하였다. 대류-확산-반응기구로 묘사되는 고정층 촉매반응기의 거동은 Langmuir-Hinshelwood형의 반응속도식 및 비정상상태 이차원 유사균일상 모델을 적용 조사하였다. 예측모델은 Sharma의 pilot-plant 실험 결과인 단일층 반응기의 축방향 온도 및 수율 분포에 대한 최적적합을 통한 최적매개변수 추정에 의해 구성하였다. 또한 예측모델은 단일층 반응기와 동일한 수율 및 전화율을 생성시킬 수 있도록 모사된 불균일활성의 이중층 반응기가 열점에서 8.96℃ 낮은 온도 상승을 일으켰다. 단일과 이중층 반응기의 가능한 조업조건 (냉매온도, 반응물의 농도, 온도 및 유량)변화에 대한 매개변수 감응도를 조사한 결과 동일한 조업 조건하에서 이중층 반응기가 단일층 반응기에 비해 더 넓은 조업범위는 물론 전화율 및 수율이 다소 높게 나타났다.

This paper analyzed the behavior of fixed-bed catalytic reactor (FBCR) which wynthesizing maleic anhydride(MA) from the selective oxidation of n-butane. The behavior of FBCR describing convection-diffusion-reaction mechanism is examined by using two-dimensional pseudohomogeneous plug-flow transient model, with the kinetics of Langmuir-Hinshelwood type. Prediction model is composed by optimum parameter estimation from temperature profile, yield and conversion of single FBCR on operating condition variations of Sharma''s pilot-plant experiment. A double EBCR with same yield and conversion for single FBCR generated a 8.96℃ lower hot spot temperature than a single FBCR. We could predict parametric sensitivity according to the variation of possible operating condition (temperature, concentration, volumetric flow of feed reactant and coolant flow rate) of single and double FBCR. Double FBCR showed the behavior of more operating range than single FBCR. Double FBCR with nonuniform activities could assure safety operation condition for the possible variation of operating condition. Also, double FBCR had slightly higher than the single FBCR in conversion and yield.

Keywords:Fixed-Bed Catalytic Reactor;Maleic Anhydride;Parametric Sensitivity

[References]

Froment GF, Ind. Eng. Chem., 59, 18 (1967)
Rosendall B, Finlayson BA, Comput. Chem. Eng., 19(11), 1207 (1995)
Karanth NG, Hughes R, Catal. Rev.-Sci. Eng., 9, 169 (1974)
Lopez AS, De Lasa HI, Porras JA, Chem. Eng. Sci., 36, 285 (1981)
Smith JM, Chem. Eng. J., 5, 109 (1973)
Fulton JW, Crosser OK, AIChE J., 11, 513 (1965)
Hoiberg JA, Lyche BC, Foss AS, AIChE J., 17, 1434 (1971)
Sharma RK, Cresswell DL, AIChE J., 37, 39 (1991)
Hlavacek V, Ind. Eng. Chem., 62, 8 (1970)
Hoiberg JA, Hyche BC, Foss AS, AIChE J., 17, 1434 (1971)
Jutan A, Tremblay JP, MacGregor JF, Wright JD, AIChE J., 23, 732 (1977)
Froment GF, Chem. Eng. Technol., 46, 381 (1974)
Wellauer TP, Cresswell DL, Newson EJ, Chem. Eng. Sci., 41, 765 (1986)
Yun YS, Park PW, Rho HL, Jeong YO, HWAHAK KONGHAK, 35(3), 380 (1997)
Jeong YO, Ph.D. Dissertation, University of Houston, U.S.A. (1989)
Yoon YS, Ph.D. Dissertation, Pusan National University (1998)
Quinta RM, Costa AC, Rodrigues AE, Comput. Chem. Eng., 16, 721 (1992)

[1] Froment GF, Ind. Eng. Chem., 59, 18 (1967)

[2] Rosendall B, Finlayson BA, Comput. Chem. Eng., 19(11), 1207 (1995)

[3] Karanth NG, Hughes R, Catal. Rev.-Sci. Eng., 9, 169 (1974)

[4] Lopez AS, De Lasa HI, Porras JA, Chem. Eng. Sci., 36, 285 (1981)

[5] Smith JM, Chem. Eng. J., 5, 109 (1973)

[6] Fulton JW, Crosser OK, AIChE J., 11, 513 (1965)

[7] Hoiberg JA, Lyche BC, Foss AS, AIChE J., 17, 1434 (1971)

[8] Sharma RK, Cresswell DL, AIChE J., 37, 39 (1991)

[9] Hlavacek V, Ind. Eng. Chem., 62, 8 (1970)

[10] Hoiberg JA, Hyche BC, Foss AS, AIChE J., 17, 1434 (1971)

[11] Jutan A, Tremblay JP, MacGregor JF, Wright JD, AIChE J., 23, 732 (1977)

[12] Froment GF, Chem. Eng. Technol., 46, 381 (1974)

[13] Wellauer TP, Cresswell DL, Newson EJ, Chem. Eng. Sci., 41, 765 (1986)

[14] Yun YS, Park PW, Rho HL, Jeong YO, HWAHAK KONGHAK, 35(3), 380 (1997)

[15] Jeong YO, Ph.D. Dissertation, University of Houston, U.S.A. (1989)

[16] Yoon YS, Ph.D. Dissertation, Pusan National University (1998)

[17] Quinta RM, Costa AC, Rodrigues AE, Comput. Chem. Eng., 16, 721 (1992)