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Reformulation of FCC gasoline |
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| Authors: | N Viswanadham BS Negi Meenakshi Sundaram AK Agarwal |
| Affiliation: | a Catalysis and Conversion Process Division, Indian Institute of Petroleum, Dehradun 248005, India b Chennai Petroleum Corporation Limited, Chennai, India c Centre for High Technology, New Delhi, India |
| Abstract: | FCC gasoline obtained from an Indian refinery was analyzed for its quality improvement through catalytic processes. The analysis indicated the presence of high amount of sulfur, olefin and iso-paraffins in the feed that are not suitable for processing through the hydro treatment or hydro-isomerization. Detailed studies indicated that majority of iso-paraffinic and olefinic compounds in the feed boil below 60 °C. The entire range of gasoline is fractionated into light fraction (IBP-60 °C) and heavy fraction (60 °C-FBP). Heavy hydrocarbon fraction exhibited more aromatics and sulfur with comparatively low olefins and iso-paraffins. HDS followed by hydro-isomerization of the heavier fraction resulted in the formation of C6-C9 iso-paraffins through the saturation of olefins and aromatics. Overall, the processed FCC gasoline exhibited more iso-paraffins with low olefins, low aromatics and sulfur, without any loss in octane number. |
| Keywords: | FCC gasoline Sulfur Iso-paraffins |
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