Refineries worldwide depend on United Laboratories International, LLC, creator of the Zyme-Flow^SM Process, for the safe and effective removal of hazardous waste from refinery and petrochemical plant units.

United Laboratories International's patented Zyme-Flow^® separations technology has reduced turnaround cleaning time by as much as 24 hours, while meeting the highest environmental and personal safety standards. In a single application, the Zyme-Flow Process removes oil, gas, LEL, H₂S, benzene, and pyrophoric iron sulfides. The process saves time and water by venting benzene to the flare, rather than flushing it to a wastewater facility.

Unlike other surfactants commonly used for industrial cleaning, the mild oxidizer in the Zyme-Flow Process—Zyme-Flow^® UN657—can be applied in circulation or Vapour-Phase^® applications. It is effective on many different pyrophoric compounds, on highly pyrophoric units that contain a thick accumulation of coke and sludge, and on difficult-to-remove sludges. In addition, the Zyme-Flow product is almost completely expended during the job.

• Reduces H₂S to near zero
• Reduces LEL to near zero
• Reduces benzene exposure hazard to less than 1 ppm
• Eliminates pyrophoric iron sulfide and other reacting sulfides
• Active in the liquid, vapor and foam phases  
• No emulsion breaker needed
• No flash point concerns
• Allows for discharge of wash water directly to Waste Water Treatment Plant
• < 1°F exotherms