Chemical reactions in batch reactors are usually occurred in 3 types of operations. They are adiabatic, constant heat flux transfer and heat flux transfer that varied with system temperature. Each operation type has its specific calculation equation. With the data of system such as activation energy , the order of reaction or volume of the reactant, the reaction conversion and temperature in the system at any time can be calculated by the program obtained from this work. The effects from changing some physical properties, for example, inlet temperature and the initial mass of the reactant on the system can be explained by the dimensionless parameters, and . From the simulation, it was found that both of the second and the third types of operations with exothermic reactions, a hot spot causing the highest temperature in the reactor was occured. At the same time the conversion of the system was completed. In the case of varying heat flux transfer. The pseudo-adiabatic was occured. It raised the system temperature inspite of having a heat transfer system. This phenomenon appeared when only a short operating time was carried out.
By
Wanlapha Sophiskuenkantha
Wissawa Lersrojanapanya
