Experimental conditions of differential reactor method for resin–phenolic compound system:
2018
For the design of a fixed-bed reactor, intraparticle diffusivity of adsorbents is one of the most important parameters. However, determining this diffusivity is difficult as measuring the effects of fluid film resistance of adsorbents. Shallow-bed (differential reactor) technique is commonly used to determine intraparticle diffusivity. The conventional shallow-bed technique is based on the assumption that fluid film resistance is negligible because of high fluid velocity; hence, the fluid film mass transfer is not calculated. For an activated carbon–phenolic compound system, both intraparticle diffusivity and fluid film mass transfer coefficient were determined using a shallow-bed reactor. However, no one has confirmed the accuracy of the conventional assumption for a synthetic resin adsorbent–phenolic compound system. In general, synthetic resin adsorbents have a larger fluid film resistance than activated carbon. Therefore, this study focused on the effect of fluid film resistance based on the conventio...
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