PETR 102 |
| Novel FCC naphtha aromatizing catalyst was developed for producing clean fuel with high octane value, low olefins and low sulfur content. The coke burn-off kinetics of coked aromatizing catalysts was significant for its regeneration process. In this paper, the coke combustion kinetics of FCC naphtha aromatizing catalyst of 0.83-1.00mm in diameter was studied in a fixed bed micro-reactor and on-line gas chromatography. The parameters of the apparent kinetic equation of coke combustion were obtained. The rate of coke combustion showed a one-order dependence on carbon content and oxygen partial pressure. The study of the effect of particle size on the coke combustion kinetics showed that the internal diffusion of oxygen within the catalyst particle played an important role in the coke combustion, and the coke combustion rate of large catalyst covered only 60 percent of the intrinsic one. |
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Poster Session
9:00 AM-11:00 AM, Wednesday, August 22, 2007 BCEC -- Exhibit Hall - B2, Poster
Division of Petroleum Chemistry |