The measurement of effective diffusivity for sulfur-tolerant methanation catalyst

The measurement of effective diffusivity for KD306 sulfur-tolerant methanat ion catalyst has been carried out using the 'single pellet string reactor' technique. The average tortuosity factor for KD306 catalyst was experimenta lly determined to be 7.2. The results of linearization method are in good a greement with the solutions of the parameter estimation method, which shows that the assumptions made in linearity processing are reasonable, and that the methods of Linearization and parameter estimation can both be used to determine effective diffusivity efficiently. (C) 2000 Elsevier Science S.A. All rights reserved.