The behavior of fluid and conversion of real reactors in chemical processes is usually far from ideal reactors. This paper presents a program for calculation conversion in non–ideal reactors for predicting the exact conversion from tracer test data by models. These models provide the factors that differentiate non – ideal reactors from ideal reactors. In continuous-stirred tank reactors, the dead zones are often encountered. In these regions, there is little or no exchange of material with the well-mixed regions. And if the inlet and outlet pipes are close to each other then no exchange of material and no reaction occurs. Models for predicting the conversion are : zero-parameter model which that shows the two extremes of micromixing in the reactor, one-parameter model which presents the behavior of the reactor approaching an ideal CSTR or an ideal PFR, and two-parameter model which is a real reactor model combining of ideal CSTRs. The two-parameter model shows the fraction of the highly agitated region or fraction of the dead zone and fraction of the bypassing. The conversions calculated from non – ideal reactor calculation program agree well with the data from the references and can be used to improve and design the real reactor to approach high performances with suitable characteristics.
By
Akarat Kasnork
Akasithi Kunasatityachai
