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First
name:
José Angel.
Last
name:
Ojeda-Nava.
Nationality:
Mexican.
First
language:
Spanish.
Education
1990-1995,
B.Sc. in Chemical
Engineering.
Institution: Universidad Nacional Autónoma de México, UNAM.
Thesis:
Preparation and Characterization of NiW/Al2O3-TiO2
catalysts modified by phosphorous.
Supervisor: Professor Dr. A. Benítez-Patricio.
Place:
Catalysis Research Unit Group (UNICAT)
in the Department of Chemical Engineering, Building E, Faculty of
Chemistry, UNAM.
Phone: +
52 55 5622-53-66.
Thesis
description
In
this study we prepared different molecular blends of alumina and titania
(Al2O3-TiO2) using the sol-gel method.
Once the supports were prepared, we proceed to add the textural modifier
phosporous (H3PO4). With the modified support, we
then deposited the active phase NiW (amonium methatungstate and nikel
sulphate). The supports and catalysts were then characterized by several
analytical techniques like: superficial acidity with n-butil amine,
surface area, X-ray diffraction, RAMAN and DRS spectroscopy. Sulfied
catalysts were studied under a High Resolution Transmittance Electronic
Microscopy.
Institution: Universidad Nacional Autónoma de México, UNAM.
Thesis:
Mathematic Modeling of the Hydrotreatment Reactor. Object oriented
programming.
Supervisor:
Professor Dr. J. Ramírez-Solis.
Place:
Catalysis Research Unit Group (UNICAT)
of the Chemical Engineering Department, Building E, Faculty of
Chemistry, UNAM.
Phone: +
52 55 5622-53-66.
Thesis
description
A
mathematical model of the trickle bed reactor was developed using object
oriented programming techniques. The mass and energy transport occurring
at the liquid-vapour interphase as well as at the catalyst level was
taken into account. The problem of catalyst diffusion was aborded with a
general multi-component formulation using orthogonal collocation method.
A cubic equation of sate was used for LVE calculations. Thermodynamic
and transport properties were estimated with well-known correlations.
Participation
in scientific events
-
The IV International Conference on Advanced
Materials 1995, Cancun (Mexico), with the work: Influence of the
Phosphorous Concentration on the Hydrodesulfurization Activity of
NiW/Al2O3-TiO2 Catalysts.
-
12vo Simposio
Iberoamericano de Catálisis, Cordoba (Argentina), with the work: Efecto de la incorporación de fósforo sobre la estructura en
catalizadores de W soportados en TiO2, Al2O3
y TiO2-Al2O3.
-
The
software and multimedia exhibition for teaching and learning of
chemistry, Faculty of Chemistry, UNAM, with the work: GRAF3D.EXE,
graphic software used to generate thermodynamic 3-D diagrams.
-
Seminar Artificial Intelligence in Process Engineering, imparted by Professor
Dr. R. Bañares-Alcántara, Faculty
of Chemistry, UNAM.
-
Course
Distillation, Absorption & Extraction 2002, University of
Twente (The Netherlands).
-
European
Symposium On Computer Aided Process Engineering 2001 (ESCAPE-12),
The Hague (The Netherlands), with the work: Hydrodesulphurization
of Gas oils: Advantages of Counter-current gas-liquid contacting.
-
3rd
International Symposium on Multifunctional Reactors & 18th
Colloquium on Chemical Reactor Engineering 2003, University of Bath
(United Kingdom) with the works: Combining distillation columns
and heterogeneous catalytic reactors and In-situ stripping of
H2S in gasoil hydrodesulphurisation: reactor design
considerations.
Publications
-
Ojeda
Nava, J.A. and Krishna, R., Influence of unequal component
efficiencies on trajectories during distillation of a homogeneous
azeotropic mixture, Chemical Engineering & Processing, 43,
305-316 (2004)
-
Ojeda
Nava, J.A., Baur, R. and Krishna, R., Combining distillation and
heterogeneous catalytic reactors, Chemical Engineering Research and
Design, 82 (A2), 160-166 (2004)
-
Ojeda
Nava, J.A. and Krishna, R., In-situ stripping of H2S in
gasoil hydrodesulphurisation: Reactor design considerations,
Chemical Engineering Research and Design, 82 (A2), 208-214 (2004)
-
Ojeda,
J.A., Ramirez, J. and Krishna, R., Hydrodesulphurization of gasoils:
Advantages of counter- current gas-liquid contacting, Submitted to
European Symposium on Computer Aided Process Engineering - 12, J.
Grievink and J. van Schijndel (Editors), pp. 277-282, Elsevier,
Amsterdam, (2002)
Anterior
job positions
-
1994-1995,
teaching assistant under the supervision of Professor Dr Enrique
Bazua Rueda, Faculty of Chemistry, UNAM.
-
1997-1998,
coordinator in the PROMEP national education program under
supervision of Dr Luis Gil Cisneros, SESIC-SEP.
-
1999-2000,
coordinator in the Cadereyta’s project, SK-Engineering &
Construction, Mexico branch.
-
2001-
today, PhD position at University of Amsterdam.
Computing
knowledge
Foreign
Languages
-
English
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