비등온 Tube-wall 반응기의 해석 = An Analysis of Non-Isothermal Tube-Wall Reactor

다국어 초록 (Multilingual Abstract)

In case of exothermic and very fast catalytic reactions, packed bed reactor may make the problem of hot spot which will cause the thermal deactivation of the catalyst. To avoid this phenomenon the tube-wall reactor whose inside wall is coated with catalyst is receiving increased interest.
A non-isothermal analysis is presented of an irreversible gas-phase reaction occurring at the catalytic wall of a tube-wall reactor. The differential equations describing steady-state mass and heat balance is derived for the limiting case in which conversion is limited by the rate of diffusion of reactant to the wall.
The results of numerical analysis show that the mass Stanton number, S??, the reactor aspect ratio, a, and isothermal expansion coefficient, ε affect both the conversion of reactant and the temperature of reactor, but the thermal Stanton number, S?? the dimensionless coolant temperature, Y??, the ratio of bulk to total heat transfer coefficient, α, and the thermicity factor, β affect only the temperature of reactor.