Event
- Event ID
- 725
- Quality
- Description
a hydrogen recycle compressor shut down unexpectedly, resulting in flaring activity with visible smoke.
- Event Initiating system
- Classification of the physical effects
- Unignited Hydrogen Release
- Nature of the consequences
- Macro-region
- North America
- Country
- United States
- Date
- Component involved
- compressor / booster / pump
- Failure mode
- correct activation & venting
- Initiating cause
- unknown
- Root causes
- Unknown
- Date entry in HIAD
- 01/01/2020
Facility
- Application
- Petrochemical industry
- Sub-application
- Hydrocracking process
- Hydrogen supply chain stage
- All components affected
Compressor
- Process temperature range [C]
- ambient temperature (-50°C to +50°C)
- Process pressure range [MPa]
- medium pressure (2 to 10 MPa)
- Location type
- Unknown
- Location
- industrial area
- Operational condition
- Description of the facility/unit/process/substances
DESCRIPTION OF THE PROCESS
The ISOMAX process is a patented Chevron hydrocracking technology that uses a catalyst to crack heavy hydrocarbons into lighter, more valuable products like jet fuel.
Emergency & Consequences
- Number of fatalities
- 0
- Number of injured persons
- 26
- Post-event summary
flaring activity with visible smoke. Because of odor complaint, 26 persons sought medial attentions at the hospital.
In-depth data
- Release type
- gas
- Involved substances (% vol)
- H2 100%
- Release temperature [°C]
- 25
- Probable IGNITION SOURCE
References
- Sources categories
- Collections
- Reference & weblink
Snapshot from the site of the Major Accidents at Chemical/Refinery Plants in Contra Costa County
https://www.cchealth.org/health-and-safety-information/hazmat-programs/…
(accessed January 2025)OHSA investigation Report ID: 0950627
https://www.osha.gov/ords/imis/accidentsearch.accident_detail?id=201486…
(accessed July 2020)
