This paper presents a simulation model to predict the reaction performance of a fluidized bed from the operating conditions. The simulation model was derived from the observation of bubble behavior, and was developed in a form which can elucidate the conversion and selectivity with catalyst fouling. The model was applied to methylcyclohexane cracking data, and unknown parameters in the model were estimated by a non-linear regression technique. It was confirmed that the model is applicable to the performance of a fluidized bed reactor. 44 JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

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The affinities of direct dyes, such as CI Direct Blue 1, Red 2 and Yellow 12 for cellophane under high hydrostatic pressures up to 600 MPa at 55d̀C are presented. The pressure dependence of the affinities are discussed in terms of the change of the volume of substrate available for dye adsorption, ΔV.

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