exxonmobil presentation 2016.01
Post on 06-Jul-2018
231 Views
Preview:
TRANSCRIPT
-
8/18/2019 ExxonMobil Presentation 2016.01
1/62
CSB Public Meeting
ExxonMobil Refinery Explosion
Torrance, California
anuary ,
-
8/18/2019 ExxonMobil Presentation 2016.01
2/62
Agenda
•
• Statements from Elected Officials• Investi ation Team Presentation
• Board Questions to Team
• Torrance Refinery Action Alliance• Break
• PSM Panel
• Board Questions to Panel• Public Comment
www.csb.gov
• os ng ommen s
-
8/18/2019 ExxonMobil Presentation 2016.01
3/62
Board Opening Remarks
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
4/62
a emen s rom ec e c a s
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
5/62
Investigation Team Presentation
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
6/62
Investigation Presentation
• ac groun an rocess escr p on• Incident Description
• Modified Hydrofluoric Acid Near Miss
and Off-site Conse uences• Key Issues
• • Obstacles
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
7/62
Background and Process Design
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
8/62
Refinery was constructed
n -
The Torrance Refiner
represents about 1/5th of
southern California’s fluid
capacity
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
9/62
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
10/62
Refinery Proximityto Public Receptors
Within a 3-mile radius
of the refinery, there
• 330,000 residents
• 71 schools
• 8 hospitals
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
11/62
The FCC converts low-value, thick oil to higher value
gasoline by “ cracking” the large molecules apart into
smaller molecules
Catal tic Crackin
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
12/62
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
13/62
FCC Layout
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
14/62
Catal st
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
15/62
uOperation
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
16/62
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
17/62
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
18/62
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
19/62
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
20/62
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
21/62
ESP Principle of Operation
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
22/62
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
23/62
Incident Overview
• February 11 – FCC expander began toex erience vibrations
• February 16- Expander vibrations
exceeded limit and unit wasautomatically put in “ safe park” by logic
controls
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
24/62
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
25/62
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
26/62
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
27/62
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
28/62
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
29/62
Incident Overview
with expander issue
• u t mate y ec e to use same p an
from 2012 to go into expander and cleant, stay ng n sa e par
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
30/62
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
31/62
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
32/62
nc en me ne• Early on February 18, maintenance
workers who were to blind theex ander outlet became concerneddue to steam coming out of expander
• Steam reduced, allowinhydrocarbons to flow from maincolumn to flue as i in
• Workers started getting hydrogensulfide alarms and exited the unit
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
33/62
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
34/62
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
35/62
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
36/62
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
37/62
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
38/62
Serious Near Miss
“ Dropping loads or other falling objectsw n amage range o equ pmen
containing flammable or toxic material”
-near miss incident
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
39/62
• Two tank
• Approximately80 feet south
of the ESP
• Still outside ofxxon o s
minimum
spacing
re uirement
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
40/62
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
41/62
Location
Settler Tank
Damaged
Scaffold
IntakeIntake
Column
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
42/62
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
43/62
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
44/62
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
45/62
MHF•
severe hazard to the population and
• Causes severe damage to skin,,
exposure and can lead to death
• arge re ease cou mpac un re s othousands of residents
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
46/62
ommun y xposure
released due to the ESP explosion• ata yst ust e n t e near y
communities as far as a mile away• SCAQMD report can be found on theirwebsite: htt ://www.a md. ov/
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
47/62
Key Issues Identified in Investigation
Operations Integrity Management System
• Process Hazard Analysis
• ec an ca ntegr ty
• Worker Participation
• Process Safety Regulatory Gaps
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
48/62
Issue: Process Hazard Analysis
• PHA failed to ade uatel consider
hydrocarbons reaching the ESP – PHA onl considered carbon monoxideentering the ESP
– As a result, detectors used to shut down thewere on y ca rate to rea car on
monoxide
determine rationale behind the ExxonMobil
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
49/62
Issue: Process Hazard Analysis Cont.
• S ent Catal st Slide Valve not maintainin
catalyst level• H drocarbons in main column
• No analysis of steam flow rate needed into
column
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
50/62
ssue: ec an ca n egr y
• Expander
• CO gas detectors
• • Valves attached to these heat
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
51/62
ssue: or er ar c pa on
Incident Response Team• nput was not g ven or t e var ance
• Workers ex ressed concern for actionsbeing taken
• Job Safety and Environmental Analysis
www.csb.gov
, .
-
8/18/2019 ExxonMobil Presentation 2016.01
52/62
Controls Analysis
• Could have prevented incident throughutilization of assive barriers.
• Shutting all valves leading to the ESP, or
• A blind at the top of the main column.• HOC Principles could have been applied.
• Design of SCSV
• Removing HC from MC• Evaluate the use of modified HF
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
53/62
Process Safety Management
approach focused on the prevention
releases of chemicals or energy from
a rocess associated with a facilit . • Elements of PSM include:
– Process Hazard Analysis (PHA),
– Operating Procedures, – Management of Change (MOC), and
www.csb.gov
– .
-
8/18/2019 ExxonMobil Presentation 2016.01
54/62
Management (PSM) Reform•
been identified under the current CA.
• Certain PSM elements fail to require an
completion.• Current PSM re ulation also lacks ke
process safety requirements• CA draft PSM regulations will be discussed
www.csb.gov
n a ater pane ton g t
-
8/18/2019 ExxonMobil Presentation 2016.01
55/62
•Previous CSB re orts have
identified similar regulatory gaps in’
regulations• evron e nery re
• Tesoro Refinery Fatal Explosion
and Fire (2010)
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
56/62
ona ssues
•ESP Sitin
•Non-routine operating conditions
• a e y r ca qu pmenManagement
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
57/62
nves ga on s ac es
safety-related documentation•ExxonMobil subpoena responses:
• 51%-Full Res onsive• 24%-Partially Responsive
•
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
58/62
a orwar
this Meeting into the Investigation• na ze nvest gat on an an or eport
• Issue Re ort with Recommendations• Safety Video
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
59/62
oar uest ons or nvest gat on eam
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
60/62
Break
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
61/62
PSM Panel
www.csb.gov
-
8/18/2019 ExxonMobil Presentation 2016.01
62/62
ograp yhttp://2010.igem.org/User:Meagan/Oil_Sands (black oil picture)
"Electrostatic precipitator" by Evan Mason - Own work.Licensed under CC BY-SA 3.0 via Commons -
https://commons.wikimedia.org/wiki/File:Electrostatic_precipitat
or.svg#/media/File:Electrostatic_precipitator.svg
www.csb.gov
top related