Process Safety Management

1
Process Safety Management

• Initial Training

2
Highly Hazardous Chemicals (HHCs)

• A HHC is any substance that is
• Toxic
• Reactive
• Flammable
• Explosive

1a
3
Highly Hazardous Chemicals (HHCs)

• Examples of HHCs include
• Anhydrous ammonia
• Hydrogen sulfide
• Chlorine

1b
4
Highly Hazardous Chemicals (HHCs)

• When released, HHCs have the potential to cause
  catastrophic incidents resulting in
  injury/death

1c
5
Process technology

• A comprehensive assessment of a particular
  process
• Materials used in the process
• Complexity of the process

2a
6
Process technology

• Age of the process
• Past history of the process
• Maximum inventory levels for process chemicals

2b
7
Process technology

• Extent of the process hazards
• Number of potentially effected employees

2c
8
Process equipment

• Use equipment adequate for the tasks performed
• Materials of construction
• Piping and instrument diagrams

3a
9
Process equipment

• Electrical classification
• Relief system design
• Ventilation system design

3b
10
Process equipment

• Design codes and standards
• Safety systems, such as interlocks, detection,
  suppression

3c
11
Operating procedures

• Provide clear instruction for safely conducting
  all activities in a process

4a
12
Operating procedures

• Operating procedures must address the following
• Operating limits
• Safety and health considerations
• Safety systems and their functions

4b
13
Operating procedures - phases

• Initial startup
• Normal operations
• Temporary operations
• Emergency shutdown

4c
14
Operating procedures - phases

• Emergency operations
• Normal shutdown
• Startup following a turnaround
• Startup following an emergency shutdown

4d
15
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
16
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
17
Operating limits

• Does the process cause the chemical to break
  down?
• Does the process cause the chemical to boil or
  freeze?

5c
18
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
19
Process safety systems

• Provide information about safe work practices
• Necessary for controlling hazards during process
  operations

7a
20
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