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- W989818411 abstract "Isomerization, or hydro-isomerization, is a catalytic process for converting low-octane straight-chain paraffins (nC5 & nC6) into higher-octane branched paraffins. Central to the process is a gas phase fixed bed reactor filled with a zeolite base noble metal loaded catalyst. Sulfur causes significant performance loss for zeolitic isom catalysts. Even at levels as low as 5 ppmw, the performance loss is substantial. In fact, the performance loss at 5 ppmw is more than half that measured at significantly higher sulfur levels. The presence of sulfur causes a substantial reduction in performance on all zeolitic catalysts tested. While the performance loss was slightly less for those catalysts prepared by ion exchange methods (Catalysts A and C), the differences in performance loss are small when compared to the overall drop. Care must be exercised when evaluating isomerization data based on calculated octane values. While good agreement can be achieved when comparing compositional values, discrepancies can frequently arise when comparing data based on calculated octane values. These differences are more likely attributed to differences in the methods for calculating octane than to differences in actual performance." @default.
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- W989818411 date "1988-01-01" @default.
- W989818411 modified "2023-10-05" @default.
- W989818411 title "Effects of Sulfur on the Performance of Zeolite Isomerization Catalysts" @default.
- W989818411 doi "https://doi.org/10.1016/s0167-2991(09)60669-8" @default.
- W989818411 hasPublicationYear "1988" @default.
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