Effectiveness of water spray mitigation systems for accidental releases of hydrogen fluoride

Technical Report · Thu Jun 01 04:00:00 EDT 1989

DOI:https://doi.org/10.2172/5609113· OSTI ID:5609113

Accidental releases of pressurized, superheated hydrogen fluoride (HF) can result in initially dense clouds which will typically contain a mixture of HF vapor, aerosol, and droplets. Previous experiments were performed by Amoco Oil Company and Lawrence Livermore National Laboratories (the Goldfish series in 1986) to study atmospheric dispersion of these HF clouds. The present study examines the effect of water application on the mitigation of these clouds. To assess the effectiveness of water application (via either sprays or monitor) in mitigating HF clouds two series of tests were conducted in separate flow chambers. Bench scale experiments identified key variables for testing in a larger facility. The larger scale field tests demonstrated that HF releases can be mitigated with water. The impact of numerous design variables on mitigation effectiveness has also been quantified. HF removal efficiencies of 25 to 90+% have been demonstrated at water to HF liquid ratios of 6/1 to 40/1 and higher.

• Research Organization: Lawrence Livermore National Lab., CA (USA); Industry Cooperative Hydrogen Fluoride Mitigation/Assessment Program (USA). Water Spray Subcommittee
• DOE Contract Number: W-7405-ENG-48; AC08-88NV10617
• OSTI ID: 5609113
• Report Number(s): UCRL-21214-Vol.6; EGG--10617-1040; ON: DE90001179
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
BENCH-SCALE EXPERIMENTS
CALIBRATION
DATA
DATA ACQUISITION
DIAGRAMS
EFFICIENCY
ENGINEERING DRAWINGS
ENVIRONMENTAL TRANSPORT
EXPERIMENTAL DATA
FLOWSHEETS
HYDROFLUORIC ACID
HYDROGEN COMPOUNDS
INFORMATION
INORGANIC ACIDS
MASS TRANSFER
MEASURING INSTRUMENTS
MITIGATION
NOZZLES
NUMERICAL DATA
OXYGEN COMPOUNDS
PLUMES
SCRUBBING
SPRAYS
WATER