INDUSTRIAL ALUMINA AS A SUPPORT OF MoP: CATALYTIC ACTIVITY IN THE HYDRODESULFURIZATION OF DIBENZOTHIOPHENE

  • A. Montesinos-Castellanos Departamento de Ingeniería Química, Tecnológico de Monterrey
  • E. Lima Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México
  • J. A. de los Reyes División Ciencias Básicas e Ingeniería, Universidad Autónoma Metropolitana- Iztapalapa
  • M. A. Vera División Ciencias Básicas e Ingeniería, Universidad Autónoma Metropolitana- Iztapalapa
Keywords: alumina, hydrodesulfurization, dibenzothiophene, phosphide, phosphate

Abstract

Alumina support with a high surface area was used to prepare alumina-supported MoP catalysts, varying the Mo and P loadings from 4% wt. to 53%wt. Mo and P were loaded with an atomic ratio of Mo:P=1. The presence of different phosphate species was detected on all catalysts by NMR and electron diffraction techniques. The AlPO4 phase was identified for highly loaded MoP catalysts (> 26 wt% of theoretical MoP). The catalytic materials were tested in hydrodesulfurization (HDS) of Dibenzothiophene (DBT) under high temperature (593 K )and pressure (5.5 MPa ) conditions and the highest activity for HDS of DBT was obtained with the catalyst containing Mo 9.9 wt% (13% wt of theoretical MoP) keeping an atomic ratio P/Mo=1. A structural model is proposed considering the Mo and P loading. The catalyst with the best activity showed high surface area (>200 m2 /g).

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Published
2020-04-06
How to Cite
Montesinos-Castellanos, A., Lima, E., de los Reyes, J. A., & Vera, M. A. (2020). INDUSTRIAL ALUMINA AS A SUPPORT OF MoP: CATALYTIC ACTIVITY IN THE HYDRODESULFURIZATION OF DIBENZOTHIOPHENE. Revista Mexicana De Ingeniería Química, 11(1), 105-120. Retrieved from http://www.rmiq.org/ojs311/index.php/rmiq/article/view/1528
Section
Catalysis, kinetics and reactors