María Nieves Álvarez Rodríguez

Process Development Advisor



Maria Nieves Alvarez was born in Caracas, Venezuela on August 19, 1960. In 1980, she graduated as Technical Engineer in Chemical Processes at the Capital Region Technology Institute in Caracas, and in 1990 as Superior Process Chemical Engineering at the Central University of Venezuela. She has worked at PDVSA until 2002 and after 2002 at PEMEX-VEPICA-DRAGADOS, FLUOR, REPSOL. 37 years of dedication to the areas of:          

Specialized technical assistance in the Oil and Petrochemical Industry focused on the catalytic conversion processes of FCC, Alkylation, Coking Units (Flexi and Delayed), Olefins and Ammonia. Experience in the area of ​​processes, catalysis evaluation and development, Units troubleshooting, heavy crude, extra heavy and synthetics crudes impact in refinery schemes, Bitumen and extra heavy crudes transformation to synthetics crudes  PDVSA, PEMEX, REPSOL.         

Analysis of Refining schemes and new products, impact of crude quality through Refining scheme, support in process upgrading for new products and units revamp.Processes Technical / Economic feasibility study in order to transform : CITGO LEMMONT, Corpus Christy Refineries from  light to Heavy and synthetic Oil Refineries            

Rigorous and Non Rigorous models:  kinetic models of rigorous FCC simulation, methodology analysis for development of delta bases from Kinetics models to PIMS models,  statistical models for process analysis and multi variables. Process Models and their impact on linear programming models.  Non lineal models for Process integration, On line analytics for process unit digitalization.          

Research and Development (R & D)Development of techniques and methodologies for the evaluation of FCC catalysts and additives in the laboratory and pilot plants, scaling those  results to real Commercial Unit operation. Catalysis R&D, crude and current analysis and their impact on the refining scheme, new methodologies of standard analysis and his correlation with refinery impact. Use of Ionic Liquids for Improvement of Refinery and Oil Streams, Projects about of enzymatic Catalysis for Improvement of Crude, Bio DE metallization of  Refinery Products. Oil and streams composition and their impact on Fouling, Acid crude impact in fouling and corrosion.


1)US5,401,384, Mar 28,1995

Antimony and Tin containing compound, use of such a compound as a passivating agent, and process for preparing such a compound

 2)US5,360,774, Nov. 1, 1994

Method for recharging a spend fluid catalytic cracking process catalyst


Zeolitic Catalyst of MFI type, its preparation and use

4)EP1253182 (A1); JP2002294254(A); ZA200103580.

A process for catalytic cracking.


 Instructor / Professor in the Refining areas, FCC, Alquilación, Coquer, Heavy Crudes and Extra Heavy, Synthetic Crudes Processes. CSFR in master courses, School of Geology and Mines (Madrid), PDVSA Training Center (CIED) in the Master Courses until 2002.       

Development of Conceptual, Basic, Detail Engineering and Hazzop of Refining Process Plants and Industrial Services. PDVSA, VEPICA, Dragados Industrial, FLUOR, PEMEX, REPSOL. ( HDD, FCC, Coker, Vacumm Units)Industrial Units HAZOP  Expertize to Pilot plants and Industrial Units.

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