Analysis of the thermal hydrocracking of heavy fuel oil

The thermal hydrocracking of Mexican heavy fuel oil was studied at 1200 psia and different reaction temperatures (370, 380, 390 and 400°C). The results show that the vacuum residue which constitutes 62 wt. % of the heavy fuel oil and contains 47 wt. % resins and 23.3 wt. % asphaltenes, reacts to for...

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Bibliographic Details
Published in:Petroleum science and technology 2018-04, Vol.36 (7), p.507-513
Main Authors: Alonso-Ramírez, G., Sánchez-Minero, F., Ramírez, Jorge, Cuevas-Garcia, Rogelio, Moreno-Montiel, N.
Format: Article
Language:English
Subjects:
Asphaltenes
Cleavage
Fuel oils
Fuels
heavy fuel oil
Hydrocarbons
Hydrocracking
Natural gas
Polymers
Refineries
Resins
SARA composition
thermal
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Summary:The thermal hydrocracking of Mexican heavy fuel oil was studied at 1200 psia and different reaction temperatures (370, 380, 390 and 400°C). The results show that the vacuum residue which constitutes 62 wt. % of the heavy fuel oil and contains 47 wt. % resins and 23.3 wt. % asphaltenes, reacts to form lighter hydrocarbons (IBP-540°C), solid and gas. Resins transform more easily to saturates, and gases are produced mainly from the asphaltene fraction, indicating that the terminal alkyl groups in this fraction are shorter than those present in the resin fraction. The C-C scission reactions dominate the transformation of heavy fuel oil in the interval from 370 to 390°C, whereas the carbon rejection reactions are dominant at 400°C. Finally, the thermal hydrocracking of heavy fuel oil at 390°C appears suitable since at this temperature the reaction produces the greater amount of atmospheric distillates (+20.5 wt. %) and a low content of solid (2.0 wt. %) and gas (2.1 wt. %).
ISSN:1091-6466
1532-2459
DOI:10.1080/10916466.2018.1428627