HDS of straight-run gas oil at various nitrogen contents. Comparison between different reaction systems
Por:
Alvarez A., Escobar J., Toledo J.A., Pérez V., Cortés M.A., Pérez M., Rivera E.
Publicada:
1 ene 2007
Resumen:
The effect of removal extent of nitrogen-containing species on the hydrodesulfurization (HDS) of straight-run gas oil from a Mexican refinery over a NiMo-based catalyst was studied. The original middle distillate (~360 ppm N) was subjected to N-compounds removal by contacting with a proprietary adsorbent. By varying contact time, feedstocks of ~234 and ~137 ppm N were obtained. Progressive improvement on HDS over NiMo catalyst was observed by decreasing concentration of organo-N compounds in the gas oils tested in batch reactor. However, this behavior seemed to depend on the severity of the operation. By increasing operating temperature, the enhanced desorption rate of N-compounds relieved their poisoning effect, making less pronounced the benefit of low-nitrogen feedstocks. The HDS activity data from batch reactor were compared to those found when equivalent experiments were carried out in a fixed-bed up-flow reactor under conditions similar to those used in industrial facilities. © 2006 Elsevier Ltd. All rights reserved.
Filiaciones:
Alvarez A.:
Instituto Mexicano del Petróleo, Prog. de Ing. Molecular, Eje Central Lazaro Cardenas 152, Gustavo A. Madero, 07730 Mexico, DF, Mexico
Escobar J.:
Instituto Mexicano del Petróleo, Prog. de Ing. Molecular, Eje Central Lazaro Cardenas 152, Gustavo A. Madero, 07730 Mexico, DF, Mexico
Toledo J.A.:
Instituto Mexicano del Petróleo, Prog. de Ing. Molecular, Eje Central Lazaro Cardenas 152, Gustavo A. Madero, 07730 Mexico, DF, Mexico
Pérez V.:
Instituto Mexicano del Petróleo, Prog. de Ing. Molecular, Eje Central Lazaro Cardenas 152, Gustavo A. Madero, 07730 Mexico, DF, Mexico
Cortés M.A.:
Instituto Mexicano del Petróleo, Prog. de Ing. Molecular, Eje Central Lazaro Cardenas 152, Gustavo A. Madero, 07730 Mexico, DF, Mexico
Pérez M.:
Instituto Mexicano del Petróleo, Prog. de Ing. Molecular, Eje Central Lazaro Cardenas 152, Gustavo A. Madero, 07730 Mexico, DF, Mexico
Rivera E.:
Instituto Mexicano del Petróleo, Prog. de Ing. Molecular, Eje Central Lazaro Cardenas 152, Gustavo A. Madero, 07730 Mexico, DF, Mexico
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