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EFRAIN LOPEZ, PE

Efrain Lopez has 30+ years of experience in technical and managerial positions with and as a consultant to oil refining and marketing companies.


  • Base Oil Production Troubleshooting - Mexico   Investigated, on site, causes of hydraulic fluid base oil quality and blending problems at a Mexican supplier for a large USA company. The investigation included working closely with plant personnel. “Best practices” were developed and followed that have resolved the problems.

  • Process Superintendent - Sunoco Yabucoa, PR   Superintendent of modern lube production facility, which includes high pressure lube hydrotreater, extraction and dewaxing plants and vacuum distillation of lube oils. Also worked as technical services engineer in this same facility for 3 years.

  • Startup Training - Canada, USA, Russia   Operator training and startup supervision on a new vacuum tower system at a tar sands facility in Alberta, Canada. Startup Superintendent for $30MM Crude/Vacuum Units revamp. Commissioned and started up a new Alkylation Plant and Sulfur Recovery unit. Planned and executed many refinery unit turnarounds. Reviewed and revised written operating procedures and conducted operator training at the plant site in Russia.

  • General Manager of Operations - Coastal Aruba Refinery    Responsible for the operations and technical departments. The physical condition of the refinery, which was until its startup, mothballed, combined with the multi cultural workforce required a high level of creativity and innovation. Within one year, the refinery capacity was increased over 20 MB/D and on-stream factors of all units were improved.

  • FCC Technology Instructor   Provided FCC operational instruction to a major corporation entering the FCC flue gas scrubbing process market. Advised engineering design and project staff of how FCC units operate normally and under upset, startup and shutdown conditions in preparation for commercial scrubber unit startup.

  • Project Manager - Puerto Rico Water and Sewer Authority    Monitored contractor during construction, startup and approved performance tests on a large waste water treatment system handling all residential, commercial and industrial waste from the West coast of PR. Also provided owner oversight during construction of 3 new potable water treatment plants. Issued progress reports, confirmed schedule and costs and that design would meet performance specifications.

  • As Chief Engineer - Discovery & Search, Inc, Puerto Rico    Provided engineering oversight during design and construction of 2 potable water treatment plants and 45 Kilometers of large diameter distribution piping. Responsible for quality control, progress reports, follow-up on items needing action to achieve design performance.


Mr. Lopez is a Chemical Engineering graduate of the University of Puerto Rico. He is a member of Tau Beta Pi, and is a licensed Professional Engineer in Puerto Rico. Youngest son of a large family, he was raised in Puerto Rico. He is fully bilingual in English and Spanish. He is a U. S. citizen.



This page was last updated October 23, 2007



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