← Back to KB navigation
CSB Investigation
Report No. CSB-EXXON-TORRANCE-2017
2017
Explosion Explosion Environmental Environmental
ExxonMobil Torrance 炼厂爆炸
ExxonMobil Refinery, Torrance, California
Related equipment → Reactor (reactor)Related equipment → Control valve (control_valve)
0Fatalities
2Injuries
ExplosionMechanism code EXP
⌗Failure Mode · ISO 14224 Mapping
Damage mechanism (recorded in KB)
ExplosionEXP
Internal damage-mechanism code (not ISO 14224)
ISO 14224:2016 functional failure code
OTH · Other
Mapped to ISO OTH — Other.
1What Happened
2015-02-18 汽油处理单元静电除尘器(ESP)爆炸，碎片飞散
2Root Cause
FCC 单元隔离维修时烃倒流入 ESP 并点燃，安全关键滑阀降级（同 csb_extra 同设施早期事件溯源）
3Reliability Lessons (from investigation root cause)
- The 'Root Cause' above is the core lesson of this accident; not split further.
4Associated Failure Mechanisms (Keywords)
FCC 静电除尘器 滑阀 爆炸 超压 炼厂
About the Failure-Mode Code (click to expand)
The mechanism code EXP shown on this card is the KB's internal damage-mechanism abbreviation (not an ISO 14224 code); it describes how the equipment failed. The 'ISO 14224 Mapping' block above maps it to the correct ISO functional failure code (which describes what the equipment failed to do) — these are two distinct dimensions in ISO 14224. The mechanism follows the narrative in the card body.
5Evidence Source (transparent)
Authority：U.S. Chemical Safety and Hazard Investigation Board (CSB)
Official Report：www.csb.gov ↗
Data Verification：verified_url_csb_investigations_list_2026-08-07（终报 2017-05-03）
↗Related Failure Modes · Traceability