Meredith Calloway

Profile

Senior Chemical Engineer with 11 years of experience in refinery operations, process optimization, and specialty chemical manufacturing. Deep expertise in distillation column design, reaction kinetics modeling, and HAZOP facilitation across Gulf Coast facilities. Reduced unit energy consumption by 18% and recovered $4.2M in annual yield losses over the past three years through targeted process debottlenecking.

Work Experience

Senior Chemical Engineer – Process OptimizationMar 2019 - Present

Crescent Gulf Refining LLC, Pasadena, TX

Redesigned a 42-tray distillation column operating profile using Aspen Plus simulations, cutting energy draw by 18% and saving $1.6M annually in steam costs.
Led a cross-functional HAZOP study for a new hydrocracker unit, identifying 34 process deviations and resolving all critical findings six weeks ahead of the regulatory deadline.
Implemented real-time SPC monitoring on four reactor trains, reducing off-spec product incidents by 31% and recovering approximately $2.6M in previously lost yield over 24 months.

Process EngineerJun 2015 - Feb 2019

Vantara Specialty Chemicals, Baton Rouge, LA

Scaled a polymer-coating formulation from pilot (50 L) to full production (12,000 L) in 14 months, achieving 99.2% batch consistency and eliminating a $380K annual rework line item.
Optimized reactor residence time and temperature profiles using Design of Experiments (DoE), increasing throughput by 22% without capital expenditure.
Authored 17 Standard Operating Procedures and trained 40+ operators during a site ISO 9001:2015 recertification, contributing to a zero-finding audit outcome.

Process Engineer IAug 2013 - May 2015

Halloran Petrochemical Partners, Lake Charles, LA

Supported revamp of a catalytic reformer, modeling heat-exchanger network with Aspen Energy Analyzer and identifying $210K in recoverable duty annually.
Tracked and reported KPIs for six distillation units using PI System historian, enabling operations team to reduce unplanned downtime by 12% in the first year.
Completed PSM Process Hazard Analysis documentation for three covered processes, ensuring full OSHA 1910.119 compliance ahead of a scheduled EPA audit.

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