BED LUMPED REACTION-KINETICS OF A FIXED-BED REACTOR

A third kind of kinetics which is termed bed lumped kinetics is propos ed. According to its implicate, all the catalysts contained in a singl e-tube reactor are treated as a whole, which is like a large cylindric al pellet. In this manner, the proposed kinetics can be in a much larg er space scale than those of the intrinsic kinetics and particle appar ent kinetics. Bed lumped kinetics is obtained under actual industrial operating conditions. Therefore the reliability of the model parameter s can be greatly improved, and it can reduce the uncertainties in extr apolation and will be more suitable in the modeling of a fixed-bed rea ctor. The calculation of the confidence region and correlation matrix of the parameters under different experimental conditions proves that bed lumped kinetics is a concept for the fixed-bed reactors with both theoretically tenable and practically achievable properties.