Chemical Decontamination of Chemical Storage Tank

Results Achieved

Benzene and hydrogen sulfide free

93 metric tons of solids removed

Zero LEL’s after 8 hours of circulation

Typical 120 day down time reduced to 11 days

Chemical profiles

fqe-solvent-h-30

Created for the dissolution and recovery of asphaltenes in process equipment, pipelines and storage tanks. Virtually eliminates the cost of disposing of asphaltene deposits as a hazardous waste.

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fqe-lel-v-30

Rapid absorption of vapor-state hydrocarbons in an innovative encapsulant for effective decontamination and degassing of hydrocarbon processing equipment. Significantly reduces equipment outage times.

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A major petrochemical manufacturer of ethylene, propylene and benzene in Brazil used FQE™ LEL-V and FQE™ Solvent-H to successfully decontaminate and degas a product storage tank in their tank farm.

 

The tank contained 93 metric tons of rock-hard asphaltene tank bottoms as one solid mass. Typically, cleaning required up to 120 days using jack hammers to remove the solids. After 5 days of a bottom circulation at 77 – 82°C (170 – 180°F) with FQE Solvent-H, the tank solids were reduced to free-flowing coke.

 

A subsequent 12 hour circulation with FQE LEL-V resulted in a successfully degassed tank and oil-free solids. The wash water was sent directly to waste water treatment.

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