PH Booster

Types of pH Boosters

• Sodium Hydroxide (NaOH)

  • Mechanism: Strong base that increases pH by neutralizing acidic compounds.
  • Applications: Commonly used in various types of boilers. Effective in both low and high-pressure systems.

• Sodium Carbonate (Na₂CO₃)

  • Mechanism: Moderately strong base that increases pH and provides alkalinity.
  • Applications: Suitable for low to medium pressure boilers.

• Sodium Bicarbonate (NaHCO₃)

  • Mechanism: Mild base that increases pH and provides temporary alkalinity.
  • Applications: Often used in combination with other chemicals in lower pressure systems.

• Potassium Hydroxide (KOH)

  • Mechanism: Strong base similar to sodium hydroxide but used where sodium addition must be minimized.
  • Applications: Used in specialized applications where sodium content is a concern.

• Ammonia (NH₃)

  • Mechanism: Increases pH and provides alkalinity. Also used for pH control in condensate systems.
  • Applications: Effective in high-pressure systems. Typically used in combination with neutralizing amines.
• Neutralizing Amines (e.g., Cyclohexylamine, Morpholine)
  • • Mechanism: Volatile compounds that neutralize acidic compounds in the condensate system, increasing pH.
    • Applications: Used primarily in steam and condensate systems to control pH and prevent corrosion.

Factors to Consider When Choosing pH Boosters

• Boiler Type and Operating Pressure: Different boilers and operating pressures may require specific types of pH boosters.
• Water Chemistry: The initial pH, alkalinity, and presence of acidic compounds in the feedwater influence the choice of pH booster.
• Compatibility with Other Chemicals: The chosen pH booster should be compatible with other treatment chemicals used in the system.
• Volatility: Volatile pH boosters (e.g., ammonia, neutralizing amines) can carry over with steam and provide pH control in the condensate system.

Benefits of Using pH Boosters

• Corrosion Prevention: Proper pH levels help prevent corrosion of boiler and condensate system components.
• Scale Control: Maintaining the right pH minimizes scale formation by keeping minerals in solution.
• Improved Efficiency: Optimal pH levels enhance heat transfer efficiency and reduce energy consumption.
• Extended Equipment Life: Proper pH control reduces wear and tear on the boiler and associated equipment, extending their operational life.

Application Methods

• Continuous Dosing: pH boosters are continuously added to the feedwater to maintain consistent pH levels.
• Batch Dosing: In some systems, pH boosters are added in batches based on water usage and operating conditions.
• Automated pH Control Systems: Advanced systems use pH sensors and automated dosing pumps to maintain the desired pH level in real time.