Darryl L. Mamrosh, P.E.

Senior Engineer




Senior Engineer, Trimeric Corporation, Buda, TX, 2006 – Present

Process Engineering Group Leader, GlaxoSmithKline, Research Triangle Park, NC, 2003 – 2006

Process Engineering Specialist to Senior Engineering Scientist, Pfizer, Skokie, IL, 1998 – 2003

Entry Level Engineer to Project Leader, Dow Chemical Company, Freeport, TX, 1988 – 1998


Fields of Experience


Mr. Mamrosh has extensive experience in process development, process engineering, and technical services in a variety of industries, including the pharmaceutical, gas treating, pollution abatement, and commodity and specialty chemical industries.


His core competencies include:


  • All phases of process development:  laboratory; pilot plant design, construction and operation; data analysis; simulation; design; economics; and technology transfer to manufacturing.
  • Problem solving and improvement of production processes (including cGMP).  Technical services to customers.  Implementation of improvements in manufacturing.
  • Skilled with process simulation and other engineering software (Aspen Plus, Batch Plus, Dynochem).  Routinely utilize DOE and software statistical tools.
  • Hands-on plant skills; strong working knowledge of process equipment and instrumentation.
  • Development of process designs and process design packages (PDP).
  • Preparation of specification sheets for process equipment.


Some areas of specific technical expertise include:


  • Distillation (batch and continuous)
  • Solvent recovery
  • Pollution abatement
  • Modeling of processes
  • Gas scrubbing


Professional Affiliations


American Institute of Chemical Engineers




M.S. in Chemical Engineering, December 1987

B.S. in Chemical Engineering, May 1985

The University of Oklahoma (Norman, OK)


Continuing Education:


Updated education throughout career via training, in areas such as:   Distillation - Filtration - Catalysis - Mixing (FMP, Dow) - Physical Properties of Fluids - Aspen Plus - Batch Plus - DynoChem - Reaction Hazards - Solids Handling - SQC/SPC - cGMP - Experimental Design - Process Relief - and a variety of safety and personal productivity training.




(see separate publications list)