NFPA 36: Standard for Solvent Extraction Plants

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The 2013 NFPA 36 works to ensure fire safety at solvent extraction plants.

Implement the new rules in NFPA 36: Standard for Solvent Extraction Plants to mitigate the specialized hazards involved in extraction of oils from agricultural commodities using hydrocarbon solvents.

Changes to this edition include guidance on the use of hand tools and revised guidance on electrical area classification:

  • NFPA 36 extends its application to hand tools and requires management review of their use.
  • Annex revisions provide guidance on the use of spark-resistant hand tools.
  • Section 7.7 has been revised to recognize the Zone system of electrical area classification.

Other revisions correlate NFPA 36 with NFPA 61.

The 2013 NFPA 36 includes new exceptions to its requirements for fabric dust collectors to be located either outside or along an outside wall in a fire-resistive room inside the building. These changes align NFPA 36 with NFPA 61: Standard for the Prevention of Fires and Dust Explosions in Agricultural and Food Processing Facilities and provide the designer with more flexible approaches for dust collection.

Designers, builders, operators, inspectors, and enforcement personnel need today's NFPA 36 to minimize risks associated with working in flammable vapor-laden atmospheres. (Softbound, 28 pp., 2013)

NFPA® 36 Standard for Solvent Extraction Plants 2013 Edition

Chapter 1 Administration
1.1 Scope
1.2 Purpose
1.3 Application
1.4 Retroactivity
1.5 Equivalency
1.6 Units and Formulas
1.7 Code Adoption Requirements
Chapter 2 Referenced Publications
2.1 General
2.2 NFPA Publications
2.3 Other Publications
2.4 References for Extracts in Mandatory Sections
Chapter 3 Definitions
3.1 General
3.2 NFPA Official Definitions
3.3 General Definitions
Chapter 4 General Requirements
4.1 Scope
4.2 Basic Operating Requirements
4.3 Sources of Ignition
4.4 Housekeeping
4.5 Solvent Transfer Equipment
4.6 Piping, Valves, and Fittings
4.7 Exits
4.8 Fire Protection
4.9 Start-Up of Extraction Process
4.10 Emergency Procedures
4.11 Repairs in Restricted and Controlled Areas When Plant Is Operating or Not Purged
4.12 Repairs in Restricted and Controlled Areas When Plant Is Shut Down and Purged
Chapter 5 Bulk Solvent Unloading and Storage
5.1 Scope
5.2 Location and Siting
5.3 Design and Construction
5.4 Fire Protection Equipment
5.5 Sources of Ignition
5.6 Unloading Procedures
Chapter 6 Preparation and Meal Finishing Processes
6.1 Scope
6.2 Design and Construction
6.3 Electrical Systems
6.4 Dust Removal
6.5 Tramp Metal
6.6 Dryer Shutdown
6.7 Hot Work
6.8 Use of Power Tools
Chapter 7 Extraction Process
7.1 Scope
7.2 Location and Siting
7.3 Design and Construction
7.4 Drainage and Spill Control
7.5 Conveying Systems
7.6 Cooling Towers
7.7 Electrical Systems
7.8 Ventilation Systems
7.9 Ignition Sources and Heating
7.10 Flammable Vapor Detection
7.11 Lightning Protection
7.12 Static Electricity
Chapter 8 Extraction Process Equipment
8.1 Scope
8.2 Venting
8.3 Conveying Systems for Solids
8.4 Extractors, Desolventizers, Toasters, Dryers, and Spent Flake Conveyors
8.5 Grinders
8.6 Miscella Filters
8.7 Wastewater Evaporation
8.8 Pressure Vessels and Tanks
8.9 Heat Exchangers, Condensers, and Flash Drums
8.10 Process Controls
Annex A Explanatory Material
Annex B Description of the Solvent Extraction Process
Annex C Operational Practices
Annex D Informational References