TIM MULVAHILL, P.E.

Senior Process Engineer

Richmond, Texas 77406

346-***-**** mobile

adnh3t@r.postjobfree.com

KEY SKILLS

Front End Engineering and Design: Process Design Basis and Process Descriptions, Process Simulation, Process Flow Diagrams, Heat and Material Balances, P&IDs, Equipment Design and Data Sheets.

Petrochemicals and Refining Processes: Paraxylene, Styrene, Olefins, Propylene Recovery, Ethylene Oxide, Glycols, Aqueous Ammonia, Ethanolamines, Glycolamines, Surfactants, Alcohols, Acrylic Acid, Bioethanol, Biodiesel, Gasoline Blending, Butane Isomerization, Caustic Treaters.

Oil and Gas Production: Onshore and Offshore Oil and Gas Processing and Storage Facilities, Gas Plants, Refineries, LNG plants, cryogenic separation and liquefaction.

Process Safety Management: Process Hazard Analysis, Management of Change (MOC), Pressure Relief Systems Design and Revalidations.

Programs: Aspen Plus, HYSYS, UniSim, Aspen One Process Explorer, PI Data Historian, Tray and Packing sizing (FRI, KG Tower, SULCOL), Heat Exchangers (HTRI, EDR). Excel Spreadsheet Programs including Hydraulics and Line Sizing, Pressure Relief Valve and Piping Sizing, ROI and Net Present Value calculations, and RVP/TVP gasoline blending calculator. Bluebeam CAD.

Operations Technical Support: Process Simulation and Optimization, Yield Improvements, Process Historian Data Analysis, Catalyst Monitoring and Regenerations, Distillation Tower Troubleshooting, Debottlenecking, Turnarounds, Start-ups.

Environmental and Safety Compliance: Familiarity with EPA, OSHA, and TCEQ Regulations, Design of Emissions Abatement Equipment including Loading Flares, Absorbers, and Process Flares; Spill Remediation, Water Treatment.

EXPERIENCE

BECHTEL OG&C INC., Houston Texas January 2020 – April 2020

Senior Process Engineer

Developed pre-FEED process design of LNG plant for Canadian west coast.

Completed process design basis, process flow diagrams, utility balances, process descriptions, and data sheets.

PROGRESSIVE GLOBAL ENERGY, Houston, TX November 2018 – September 2019

Contracted to Enterprise Products Field Engineering, Mont Belvieu, TX

Process Engineer

Developed Process Scope of Work to improve butane blending into gasoline at marine storage terminal.

Completed Process Scope of Work for replacing refrigeration skids on butane isomerization units. Optimized refrigerant type, process conditions, and sizes of major equipment.

Sized relief valves and piping to protect regeneration piping on isomerization units. Wrote spreadsheet program for sizing relief valves for two phase flashing flow.

Completed process design to convert solid bed KOH treaters to aqueous caustic scrubbers.

KELLY SERVICES, INC., Houston, TX March 2017 – August 2017

Assigned to The Dow Chemical Company, Houston

Senior Process Engineer

Evaluated options for replacing condensing turbine driver on process air compressor. Developed over 10 options with cross functional team. Selected best option from economic analysis results.

WALDEMAR S. NELSON and COMPANY, INC., Houston, TX July 2014 – July 2016

Senior Chemical Engineer

HYSYS heat and material balances for multiple wells feeding offshore platform in Gulf of Mexico.

Front end engineering and design of topsides processing equipment for adding new well to BP-Shell deep-water offshore platform in Gulf of Mexico.

Specifications for safety systems and fire-fighting systems for oil production facilities.

Design for consolidation of flares and headers for gas plant in South Texas.

Flare and pressure safety relief system study for overseas experimental oil production facility.

Facilities for storage and transfer of crude oil in Powder River area, Wyoming.

Modifications to decrease corrosion in overseas crude oil treaters.

Developed piping hydraulic spreadsheet programs for liquid, gas, and two-phase flow.

Completed proposal for pilot reactor for client. Reactor produced biodiesel fuel from farm wastes.

PROGRESSIVE GLOBAL ENERGY, Houston, TX Feb. 2014 – April 2014

Contracted to Plant Services, Inc., West Columbia, TX

Senior Process Engineer

Process design for revamp of cellulose to ethanol biorefinery in Alpena, MI. Work included process descriptions, process flow diagrams, heat and material balances, equipment design and data sheets, Aspen EDR simulations for shell and tube and plate and frame exchangers, hydraulic calculations and pump sizing. Systems included aqueous ammonia, nutrient feed, yeast propagation, and fermentation.

Aspen simulation and heat and material balance for distillation section of plasticizer plant.

FLUOR CORPORATION, Sugar Land, TX March 2013 – Nov. 2013

Principal Process/Specialty Engineer

Expansion of chemical complex in Lake Charles, LA

Completed front end engineering and design for expansion of Ziegler Alcohols unit including ISBL processes, OSBL, and utilities.

Completed Aspen models, heat and material balances, process flow diagrams, equipment data sheets, P&IDs, pump and line sizing calculations, and utility summaries.

DCP MIDSTREAM, Beaumont, TX / Midland, TX Jan. 2011 – Feb. 2013

Senior Engineer

Asset Engineer for Gulf Coast Area

Monitored and provided technical service for several gas plants, cavern storage, and pipeline systems.

Simulated condensate stabilizer VRU units at Beaumont and Port Arthur plants after compressor failure and gas release incident. Identified root causes and provided design to correct.

Completed HAZOP revalidation study for Mobile Bay gas plant.

Asset Engineer in East Permian Region.

Provided technical support for 160 MMSCFD gas plant near Goldsmith, TX. Monitored area booster stations and pipelines. Completed major plant turnaround in April, 2011.

Modified and installed sulfur unit reheaters and burners during April 2011 turnaround.

On start-up team for new PLC control system for dual 25,000 HP gas turbines. New PLC improved control of the 4-stage turbine driven centrifugal compressors and reduced flaring incidents.

Designed new glycol unit vent gas recovery compressor to avoid atmospheric emissions.

Completed design and start-up of vapor combustion unit for condensate truck loading facility.

Designed and installed new sulfuric acid storage and metering systems for improved safety. Led abatement plan team for sulfuric acid spills.

MAVERICK ENGINEERING (contract), Corpus Christi, TX Aug. 2010 – Nov. 2010

Senior Process Engineer

Reviewed recommendations from previous pressure relief study on refinery sulfur recovery unit. Generated design packages for new and modified relief valves and piping.

BP AMOCO CHEMICAL, Texas City, TX Aug. 2008 – Dec. 2009

Process Engineer, Projects

Member of Capital Projects and Integrity Management Groups. Completed process design work for capital projects. Reviewed relief system revalidation studies, performed PSM self-audit, completed HAZOP action items and MOC closures.

Reviewed contractor pressure relief revalidation study for paraxylene unit. Performed back-pressure calculations for max relief load cases to flare. Provided recommendations to management.

Completed process design package for temporary flare to replace hurricane-damaged flare.

HUNTSMAN CORPORATION, Port Neches, TX July 1999 – Aug. 2008

Senior Project Engineer

Member of projects group and OGA (olefins-glycols-amines) team. Developed scope and process design for capital projects. Completed process improvement projects, HAZOPS, troubleshooting, catalyst change-outs, turnarounds, and start-ups. Completed Six Sigma Greenbelt training.

Lead process design engineer for ethanolamines unit expansion project. Finalized Aspen model of front end. Designed new reactor train and high pressure ammonia absorber. Designed pressure relief system for reactor for excess ethylene oxide scenario.

Completed process design for brine chiller system for ethylene oxide storage spheres to improve safety in storage and transportation. Decreased potential for runaway reaction or vapor space ignition.

Developed Aspen simulation of Benfield CO2 removal section in ethylene oxide unit. Designed and installed new rod-baffle overhead cooler for CO2 contactor to decrease cycle gas pressure drop and prevent carbonate deposit build-up. Successfully lowered CO2 in cycle gas resulting in improved yields and increased capacity of unit.

Modified mono & dinonylphenol (MNP/DNP) unit by decommissioning reaction section and redesigning refining section. Revamped unit successful in processing purchased crude DNP. Eliminated hazardous HF alkylation section and continued supply of DNP product to customer.

Designed new ethylene oxide spargers and spray nozzles for surfactant kettles to decrease batch cycle time.

AMOCO CHEMICALS CORPORATION, Houston, TX / Texas City, TX March 1979 – May 1999

Senior Process Engineer

Member of corporate and plant engineering groups. Completed process engineering assignments and process design packages on large and small projects for Texas City and other Amoco plants. Technical service engineer for Texas City styrene and paraxylene units.

Member of design and startup teams for $40 million paraxylene unit (PX1) expansion project (1996).

Represented company in EPC contractor office for front end engineering phase.

Coordinated process engineering work with R&D, management, and contractor.

Completed sections of Process Design Package for isomerization and refining units.

Designed tube pattern modifications to isomerization feed-effluent exchangers to achieve 35% throughput increase without tube vibration.

Led design of retray for xylene stabilizer tower. Redesigned internals for depentanizer tower in Light Aromatics Fractionation (LAF) section. Designed delta P control scheme for stacked xylene towers to balance tray loadings.

Reviewed contractor relief valve calculations.

Designed low pressure fuel gas system to burn LAF tower vent gas in idle isomerization furnace burners. Decreased makeup fuel usage.

Designed vapor recompression propane-propylene splitter tower for Texas City propylene concentration unit and Milford Haven refinery.

Member of Styrene Refining Modernization team.

Designed $10 million parallel ethylbenzene-styrene splitter tower with structured packing internals. Increased unit production, decreased energy consumption, residue production, and inhibitor usage. Project team received the 1997 Chairman’s Award for Team Excellence.

Member of Corporate Engineering in Process Group

Provided engineering support for new purified terephthalic acid (PTA) unit for S. Korean joint venture plant. Generated control valve data sheets. Completed engineering design manuals at Chicago office.

Led plant team in the design of safe and environmentally friendly marine loading emission abatement facilities for the Texas City docks. System employed lean oil absorption vapor recovery technology. Team received the US Coast Guard Benkert Award for marine environmental protection and safety.

Lead role in the design and implementation of a third dehydrogenation reactor for styrene unit. Redesigned tube pass sequence in steam superheater furnace. Increased styrene production rates 10% and achieved $1.5-2 million per year in steam savings. Received Special Project Award.

Designed new ethylbenzene recovery tower on styrene unit to replace undersized tower. New Tower achieved efficient separation and a 5% increase in styrene unit capacity.

Distillation representative for company at Fractionation Research Inc. technical meetings.

Completed HAZOP Leader Training for OSHA PSM Regulation. Completed course in Auditing Process Safety Management Systems. Served on numerous HAZOP studies.

Member of Texas City Plant Engineering Team

Identified and removed cold-end production bottleneck for world-scale paraxylene unit (PX2). Used HEXTRAN pinch technology exchanger network simulator to model system. Added several exchangers to cold-end network to reduce the ethylene-propane refrigeration compressor load. A 10% paraxylene production increase was made possible worth up to $3 million per year.

Member of $35 million Styrene Modernization Project team and leader of engineering start-up team.

Designed successful polyethylbenzene transalkylator reactor and ethylbenzene-superheated steam high velocity gas mixer for inlet of styrene reactor train. Improved mixing resulted in steam savings and yield improvements worth over $300,000 per year.

Designed new thermosiphon reboiler system for benzene dehydrator tower following a fire incident. Eliminated hazardous benzene filters and hot forced circulation loop. New reboiler exceeded capacity target with stable operation.

Performed start-up and testing of new PSA hydrogen purification plant to supply refinery with high purity hydrogen from styrene unit.

G.R. STUCKER AND ASSOCIATES, CONSULTANTS & ENGINEERS, Part-time 1977-1978

Baton Rouge, LA

Process Engineer

Completed safety relief system audit for ethylene purification section at Exxon Chemical plant.

Performed fieldwork and calculations for debottleneck of ethylene-propylene rubber unit.

EDUCATION

LOUISIANA STATE UNIVERSITY, Baton Rouge, LA

Master of Science in Chemical Engineering

UNIVERSITY OF TEXAS AT AUSTIN, Austin, TX

Bachelor of Science in Chemistry with Honors

CERTIFICATIONS

Registered Professional Engineer in Texas

ORGANIZATIONS

American Institute of Chemical Engineers (AIChE) Senior Member, South Texas Section

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