Mrs. Do-Ha has 15 years of experience in process engineering and heat transfer engineering in the chemical and petroleum industries. She has expertise in process design, heat exchanger design, and process simulations software. Some of her responsibilities include process design, heat and material balances, equipment specifications, and thermal design of heat exchangers. She has worked on projects for companies such as Shell, Lyondell, Dow, and Jacobs Engineering.

1. TRACY DO-HA
206 Elana Lane
Stafford, Texas 77477
(Cell) (832) 661-5787
tracydo_ha@yahoo.com
Page 1 of 3
EXPERIENCE SUMMARY:
Mrs. Do-Ha has fifteen years of experience with conceptual process design and detailed process
engineering of new and revamped facilities in the chemical and petroleum refining and industry. She is a
capable engineer on both Process Engineer position and Heat Transfer engineer position.
Her responsibilities include participating in the design of a process unit with process design basis,
developing process options and optimizing selected design, calculating and organizing data for process
flow sheets (P&ID's), preparing and developing specifications and operating instructions for processing
equipment, developing process flow diagram to define heat and material balance, performing hydraulic
calculations for fluid circuits, preparing sizing calculations for pressure relieving devices for system
protection, developing Flarenet model and calculations for flare header relief scenarios, and preparing all
utilities usage and cooling tower sizing.
Four of the fifteen years of experience have been spent dealing with heat exchangers such as shell and
tube, air cooled, hairpins and double pipe, and twisted tube heat exchangers. Responsibilities include the
thermal and mechanical design of heat exchangers, preparing requisitions and purchasing order of heat
exchangers package. She also wrote the Air Cooled Heat Exchanger Technical Guideline and did a
presentation of HTRI program to Process Discipline.
SPECIAL FIELDS OF KNOWLEGES:
Process Simulations: Pro II, HYSYS, Aspen, Aspen Flarenet, Aspen EDR, ProMax, AFT Fanthom and
Arrow
HTRI Program for Shell & Tube, Reboiler, Air Cooled
Heat Exchanger Detail and Checking (TEMA)
API 661 – Air Cooled Heat Exchangers
EMPLOYMENT HISTORY:
Jacobs Engineering Group, Houston, TX November 2004- April 2016
Senior Process Engineer
Jacobs Engineering Group, Houston, TX June 2002- November 2004
Heat Transfer Specialist III
Halliburton, Kellogg Brown & Root, Houston, TX April 2001- May 2002
Heat Exchanger Engineer
KEY ASSIGNMENTS:
Jacobs Engineering Group
 Senior Process Engineer, Propylene Concentration Unit – Studies for Future Expansion, Flint Hills
Resources, Port Arthur, Texas. Responsibilities included the design and simulation of several
processes in Aspen Plus as a guide to either upgrade their existing Propylene Unit, evaluated all
existing equipment and additional new equipment needed to ensure the new process requirements
were met.

2. TRACY DO-HA
206 Elana Lane
Stafford, Texas 77477
(Cell) (832) 661-5787
tracydo_ha@yahoo.com
Page 2 of 3
 Senior Process Engineer, EO4 Expansion Growth Project, Shell, Geismar, Louisiana.
Responsibilities included preparing all equipment data sheets for new EO4 plant, a new Glycol
Bleeds Upgrader, and associating additional scope required to integrate EO4 into the Geismar
site.
 Senior Process Engineer, BP Texas City Refinery Automation and Control Project, Texas City,
Texas. Provided maintenance and process safety time calculation for instruments, preparing
P&IDs for Revamp Project.
 Process Engineer, Occidental Elk Hills Cryogenic Gas Plant & Fractionation Facility, Elk Hills,
California. Prepared process design for 200 MMSCFD expansions of gas handling, treating and
Natural Gas Liquid’s fractionation capacity.
 Process Engineer, Ras Tanura Integrated Project, Saudi Aramco and Dow Chemicals Joint
Venture, Saudi Arabia. Responsibilities included all heat exchangers thermal design in Epoxy,
Cumene, Phenol, and Bis Phenol A Units; prepared all utilities usage for all units and cooling tower
sizing.
 Process Engineer, Plant Upgrade, Dow Cabana, Sao Paolo, Brazil. Prepared Flarenet model and
calculations for flare header relief scenarios.
 Lead Process Engineer, High Purity Isoprene Project, Lyondell, Channelview, Texas.
Responsibilities included planning, scheduling, and supervising process design, preparing and
developing heat and material balance, and preparing process data for towers and column.
 Process Engineer, POSM Project, Lyondell, Ningbo, China. Responsibilities included HTRI
thermal rating for all heat exchangers in units; prepare Flarenet models for flare header relief
calculations.
 Process Engineer, Dispersion Plant Project, BASF, Freeport, Texas. Responsibilities included
vessel and pumps calculations, design head load required for tank, pump, and pipe for polymers
handling and storage.
 Process Engineer, Propylene Glycol Ethers Plant, Shiny, Kaoshiung, Taiwan. Responsibilities
included prepare all equipment packages and datasheets.
 Process Engineer, Gasoline Hydrotreater Unit, CITGO, Corpus Christi, Texas. Responsibilities
included heat exchangers design, pump hydraulic calculations, and PSV sizings.
 Heat Transfer Specialist. Responsibilities included prepare HTRI design, run vibration program,
prepare mechanical designs, data sheets, prepare requisition packages, bid tabs for all heat
exchangers. Projects included:
- Ultra Low Sulfur Diesel Project, Flint Hills Resources, LP, Corpus Christi, Texas
- Shell EO/EG Project, Shell Chemical Company, Geismar, Louisiana
- BEAM Project, NOVA Chemicals, Bayport, Texas
- Flare Gas Recovery Project, Equiva Services LLC, Deer Park, Texas, and Convent and
Norco, Louisiana
- NYNÄS NSP Revamp Project, Valero, Three Rivers, Texas
- Trainer Clean Fuel Project, Conoco Phillips, Trainer, Pennsylvania
- Gasoline Desulfurization Project, Valero Refinery Plant, Corpus Christi, Texas
Halliburton, KBR, Inc

3. TRACY DO-HA
206 Elana Lane
Stafford, Texas 77477
(Cell) (832) 661-5787
tracydo_ha@yahoo.com
Page 3 of 3
Heat Exchanger Engineer. Performed thermal and mechanical design for shell and tube heat exchangers.
Projects included:
 LNG Plant, Camisea, Peru
 Ethylene Plant, Petroquimica, Mexico
 Phenol/Acetone Plant, Shangshai, Shanghai, China
EDUCATION/TRAINING:
Bachelor of Science in Chemical Engineering, University of Houston, Houston, Texas
Fundamental Engineer (E.I.T) in State of Texas.
Process Training Courses: PRO/II Distillation, Crude Column, Excel Interface and Visual Flow;
HYSYS; Aspen Plus Distillation and Reactors, Aspen Flarenet, Aspen EDR, ProMax, AFT Fanthom
and Arrow.
Heat Exchangers Workshops: HTRI Shell & Tubes Workshop; HTRI Reboiler Workshop; HTRI Air
Cooled Workshop.
Management Leadership Courses.
REFERENCES:
1) Jose Ramos – Technology Manager Petrochemical/Polymer at Jacobs Engineering Group,
832-351-6961, jose.ramos@jacobs.com
2) Piruz Nezami – Process Lead at Jacobs Engineering Group, 832-351-6907,
piruz.nezami@jacobs.com
3) Valleta Phillips – Process Section Manager at Jacobs Engineering Group, 832-351-6959,
valleta.phillips@jacobs.com
4) Marilyn C. Wallace – Process Manager at Zachry Engineering Corporation, 832-443-4036,
mdenease@gmail.com