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Zyme-Flow Technology

®

Single-step Decontamination of Hydrocarbon Processing Units

Worldwide Leader in Refinery DecontaminationTM

Zyme-Flow Process

®

Eliminates benzene, LEL, H2S, and pyrophoric iron sulfides Safe, biodegradable and compatible with metallurgy and wastewater systems

The Zyme-Flow Process offers the most complete decontamination solution for refining and petrochemical applications. In a single step, the Zyme-Flow Process removes oil, gas, LEL, hydrogen sulfide, benzene and pyrophoric iron sulfides. At the same time, it reduces sludge and conditions for COD control. The patented formulation is highly effective, fast-acting and safe for personnel, plant equipment and the environment. As a result, Zyme-Flow® treatment dramatically reduces the time required to prepare equipment for entry while eliminating safety and procedural concerns associated with cleaning, degassing and environmental compliance.

100 90 80 70 60 Scale 50 40 30 20 10 0 0 2 4 6 Hours 8 10 12

A Versatile Solution _____________

The Zyme-Flow Process attacks, breaks down and emulsifies not only hydrocarbon liquids, but also vapors within process equipment. Active in liquid, vapor and foam phases, Zyme-Flow can be applied as an aqueous solution in circulation or through a proprietary Vapour-Phase® steam cleaning process using the plant's existing steam-out procedures. In a Vapour-Phase® procedure, Zyme-Flow is injected or educted directly into a steam source, allowing contact and penetration of all surfaces. The Vapour-Phase SM process is the fastest method for entering process equipment and consistently reduces steam-out time up to 75%. It also avoids the costs of temporary circulation pumps, while reducing the amount of waste generated.

H2S Benzene LEL Temp (°C)

Benefits _________________________

Effective. The Zyme-Flow Process reduces hydrogen sulfide to near zero, LEL's to near zero and benzene exposure to less than 1 ppm. It eliminates pyrophoric iron sulfide and other reacting sulfides as an integral part of the decontamination process. Excessive steam-out times are no longer necessary and emulsions formed separate quickly without the need for a breaker. Efficient. The Zyme-Flow Process reduces turnaround cleaning time by as much as 24 hours. Zyme-Flow Process technology can be merged into shutdown operations, minimizing

Actual performance chart of a Zyme-Flow project (shape and values of curves will vary by application).

CRUDE UNITS VACUUM UNITS SAT GAS UNITS COKER UNITS FCC UNITS DESALTERS VIS-BREAK CAUSTIC TREATERS GAS COMPRESSOR SYSTEMS SOUR WATER STRIPPERS MEROX UNITS FLAR PIPELINES ODOR CONTROL HYDROCARBON STO

turnaround time and often reducing outside contractor costs.

Safe. Zyme-Flow chemistry is non-toxic, nonhazardous and biodegradable. It contains no volatile compounds and has no flammability concerns. The Material Safety Data Sheet hazard rating for Zyme-Flow is 0-0-0. Unlike other products, it does not form toxic by-products of sulfides during the decontamination process. All reactions with sulfides are nonexothermic and safe with hydrocarbons.

Laboratories International personnel monitor all key project parameters, including H2S, benzene, LEL, sulfides in water, pH, temperature and Zyme-Flow concentration. The end point is accurate and verifiable.

Decontamination Planning ______

United Laboratories International, LLC, provides the industry's most comprehensive pre-project planning services. After extensive consultation with refinery personnel and onsite inspection of all equipment and piping, detailed procedures are specified, including chemical injection points, required fluid volumes and all necessary refinery preparations. The final planning package includes everything needed to ensure safe and effective decontamination.

Environmentally Friendly. Zyme-Flow is not a solvent. It is a completely biodegradable, all-aqueous formula that is free of volatile organic compounds.

When applied in the Vapour-Phase process, it eliminates the odor problems associated with conventional steaming. The effectiveness of Zyme-Flow treatment significantly reduces EPAregulated waste generated by hydroblasting.

Global Technical Support ________

United Laboratories International provides engineering and applications support worldwide. Services include engineered decontamination planning, project management, technical training, execution and follow-up. Services are provided by engineers and chemists with extensive experience in refining and wastewater treatment. Decontamination specialists are available to answer questions and discuss your specific requirements. Call today at +1 832.775.1600.

Plant Compatible. Zyme-Flow chemistry

is near neutral pH and compatible with all common metals of containment and construction. It is safe for plant wastewater treatment systems and the chemical constituents are not a threat for reprocessing recovered hydrocarbons.

EnvirAwareTM

This product is specially designed to maximize cleaning performance without harm to the environment.

Reliable. The progress of benzene and sulfide elimination is measured and documented during a project, allowing results to be accurately predicted. Throughout the process, United

KERS FLARE SYSTEMS HYDROCRAKER UNITS REFORMER UNITS REFORMERS ETHYLENE UNITS RE DRUMS HYDROFINER UNITS AMINE TREATER UNITS OILY WATER SEPARATORS HDS UNITS ORAGE TANKS OILFIELD PRODUCTION SYSTEMS

More Decontamination Solutions from United Laboratories International

Zyme-Flow® UN 657

The number one decontamination product on the market. Environmentally safe. Wastewater friendly. Excellent penetration of sludge and scale. Provides for fast entry. Eliminates Benzene, LEL's, pyrophoric iron sulfides and hydrogen sulfides.

Zyme-HT Z-11

TM

Specially formulated for units where ammonia is a concern. It eliminates ammonia, benzene, LEL's, pyrophoric iron sulfides and hydrogen sulfides. Excellent penetration characteristics in sludge and scale.

HOB K61 ­ Heavy Oil Breaker

TM

TM

An additive that quickly penetrates heavy-oil deposits, breaking them up for quick removal.

REZYD-X® Cleaner

Internal cleaner that dissolves and removes heavy hydrocarbon deposits on surfaces where low-flashpoint solvents can not be used.

Super Tank-Zyme Z21

TM

A safe sour water tank treatment that oxidizes sulfides and pyrophorics, de-oils solids and promotes quick liberation of VOC's ­ all in one step.

ZYME-OX® Composition-Z20

Zyme-Ox is used to oxidize H2S and pyrophoric iron sulfide. It is commonly used for pre-flushing and rinsing vessels in which fouling and pyrophoric material are concerns.

ZYME-OX® Plus

Provides excellent penetration, H2S control, pyrophoric iron oxidation, de-oiling and degassing during the same application; effective at removing ammonia and destroying other contaminates in hydrotreaters.

United Laboratories International, LLC

A TriStar Global Energy Solutions Company

Worldwide Leader in Refinery Decontamination

Tel: +1 832.775.1600 Fax: +1 713.672.3988 Toll Free: 877.332.6648 www.zymeflow.com

EnvirAware, Heavy Oil Breaker, HOB, REZYD-X, Super Tank-Zyme, Vapour-Phase, Zyme-Flow, Zyme-HT, Zyme-Flow Process, and ZYME-OX are marks of United Laboratories International, LLC ©2009 United Laboratories International, LLC All rights reserved

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