Recommendation by EURO CHLOR Working Group on Production, Storage and Transport safety (GEST)
This recommendation concerns storage systems provided by fixed liquid chlorine
storage tanks constructed to operate with or without refrigeration.
Author(s): Herman De Knijf
Edition: 7
Publisher: Euro Chlor
Year: 2014
Language: English
Pages: 26
City: Brussels
1. GENERAL POINTS p.6
1.1. The Choice between Storage with or without Refrigeration
1.2. Unit Capacities
1.3. Number of Storage Tanks
2. BASIC DESIGN AND LOCATION OF THE STORAGE SYSTEM p.7
2.1. Design and Permits
2.2. Principle
2.3. Location
2.3.1. Outside or Inside Location
2.3.2. Protection from External Damage
2.3.3. Distance from Rails and Roads
2.3.4. Distance from Another Operating Process
2.3.5. Distance from the Boundary of the Factory
2.3.6. Distance between two Adjacent Storage Tanks
2.4. Bunding
2.5. Emergency Capacity
3. CONSTRUCTION OF STORAGE TANKS p.10
3.1. Basis of Design
3.1.1. Design Pressure
3.1.2. Design Temperature
3.1.3. Corrosion Allowance
3.1.4. Thermal Insulation
3.2. Materials of Construction
3.2.1. Steel
3.2.2. Branches, Flanges, Nuts and Bolts
3.2.3. Pipework
3.2.4. Quality of Jointing Materials
3.2.5. Thermal Insulation
3.3. Foundations and Supports
3.3.1. Foundations
3.3.2. Supports
3.4. Stress Relief
3.5. Inspection and Testing
3.5.1. Inspection of Construction Materials
3.5.2. Inspection during Fabrication
4. ACCESSORIES p.15
4.1. Branches
4.2. Valves and Isolation
4.3. Pipework
4.4. Measuring Equipment
4.5. Safety Equipment
4.5.1. Over and Under-Pressure
4.5.2. Protection of the External Shell
4.6. Filling Ratio
4.7. Thermal Expansion Bellows for Double-Jacketed Tanks
4.8. Filling, Emptying and Venting Equipment
4.8.1. Filling
4.8.2. Emptying
4.8.3. Venting
5. OPERATION p.19
5.1. Cleaning and Drying before Chlorine can be Admitted
5.2. Leak Testing
5.3. Commissioning
5.4. Total Emptying
5.5. Reactive Materials
5.6. Filling and Emptying in Normal Operation
5.6.1. Quality of Chlorine Introduced
5.6.2. Temperature and Pressure of the Liquid Chlorine Introduced
5.6.3. Emptying the Tank
5.7. Venting and Isolated Systems (Cold Chlorine Storage)
5.8. Periodic Inspection and Testing
5.8.1. External inspection
5.8.2. Internal inspection
5.9. Methods of Protection and Alarm
5.10. Response to a significant loss of primary containment - Methods and Equipment
6. REFERENCES p.25
