Transcript Process Safety Management

Process Safety
Management
Initial
Training
Highly Hazardous
Chemicals (HHCs)
A
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HHC is any substance that is:
Toxic
Reactive
Flammable
Explosive
1a
Highly Hazardous
Chemicals (HHCs)
 Examples
of HHCs include:
• Anhydrous ammonia
• Hydrogen sulfide
• Chlorine
1b
Highly Hazardous
Chemicals (HHCs)
 When
released, HHCs have the
potential to cause
catastrophic
incidents
resulting in
injury/death
1c
Process technology
A
comprehensive assessment of
a particular process
 Materials
used in the process
 Complexity
of the process
2a
Process technology
 Age
 Past
of the process
history of the process
 Maximum
inventory levels for
process chemicals
2b
Process technology
 Extent
of the process hazards
 Number
of potentially effected
employees
2c
Process equipment
 Use
equipment adequate for the
tasks performed
 Materials
 Piping
of construction
and instrument diagrams
3a
Process equipment
 Electrical
 Relief
classification
system design
 Ventilation
system design
3b
Process equipment
 Design
codes and standards
 Safety
systems, such as
interlocks, detection,
suppression
3c
Operating procedures
 Provide
clear instruction for
safely conducting all
activities in a
process
4a
Operating procedures
 Operating
procedures must
address the following:
• Operating limits
• Safety and health
considerations
• Safety systems and
their functions
4b
Operating procedures phases
 Initial
startup
 Normal
operations
 Temporary
operations
 Emergency
shutdown
4c
Operating procedures phases
 Emergency
operations
 Normal
shutdown
 Startup
following a turnaround
 Startup
following an emergency
shutdown
4d
Operating limits
 Be
aware of the operating limits
of a process
 Operating
limits - related issues
may include:
• Voltage limits of the equipment
• Amperage limits of the equipment
• Phase limits of the equipment
5a
Operating limits
Questions regarding the process
chemical limits might include:
 Can the equipment handle the
properties of the chemical
being used in the process?
 Does
the process maintain the
proper physical properties of
the chemical?
5b
Operating limits
 Does
the process cause the
chemical to break down?
 Does
the process cause the
chemical to boil or freeze?
5c
Safety and health
considerations
 Safety
and health
considerations include anything
that is likely to cause:
• Acute or chronic health problems;
or
• Process-related injuries or
accidents
6a
Process safety systems
 Provide
information about safe
work practices
 Necessary
for controlling
hazards during process
operations
7a
Process safety systems
 Safety
systems ensure that:
• All operating procedures reflect
current operating practices
• Changes to processes resulting
from changes in process
chemicals are explained
• Changes in technology, equipment,
or the facility are communicated
7b