How to Select the Right Chemical Descalers to Maximize Equipment Efficiency

Different types of industrial equipment require specific chemical descalers to effectively remove scales, deposits, and corrosion, ensuring optimal performance and safety. Acid-based descalers are commonly used for their efficiency in dissolving various types of scales. In contrast, biodegradable and environmentally friendly descalers are preferred to align with sustainable practices.

Here is a list of industrial equipment for which chemical descalers will be used. 

  1. Heat Exchangers

Heat exchangers, including shell-and-tube and plate heat exchangers, play a critical role in various industries, such as power generation and chemical processing. Over time, these heat exchangers can accumulate mineral scales, deposits, and corrosion, hindering heat transfer efficiency. Acid-based chemical descalers, such as phosphoric acid-based or citric acid-based formulations, are specifically designed to dissolve calcium, magnesium, and iron scales, restoring optimal heat transfer performance. These descalers effectively remove stubborn deposits and prevent their reformation, ensuring improved energy efficiency and preventing potential equipment damage.

2. Boilers

Boilers are used to generate steam in power plants, manufacturing facilities, and other industrial processes. The internal surfaces of boilers are susceptible to scaling due to the presence of dissolved minerals in the water. Acid-based chemical descalers, such as hydrochloric acid-based formulations, are employed for effective boiler cleaning. These descalers dissolve calcium, magnesium, and iron scales, preventing their accumulation and maintaining the boiler’s heat transfer efficiency. Proper descaling helps avoid corrosion and ensures the longevity and reliability of the boiler.

descaling of heat exchangers in the Philippines

3. Cooling Towers

Open-loop cooling towers and closed-loop cooling towers are types of cooling towers that are integral to heat dissipation in industrial processes, and they often face issues like mineral deposits, biofilms, and algae growth. Descalers with chelating agents are ideal for cooling towers, as they effectively remove scales and prevent their reformation. These chemical descalers are biodegradable and environmentally friendly, making them safe for the cooling tower system and the surrounding environment. Proper descaling helps maintain optimal cooling tower performance, improves energy efficiency, and prevents microbiological contamination.

4. Condensers 

Condensers are vital in various industries, such as power plants and refrigeration systems. They are exposed to seawater and other contaminants, leading to scale accumulation and reduced heat transfer efficiency. Descalers with inhibited hydrochloric acid or sulfamic acid formulations are commonly used for effective condenser cleaning. These descalers remove marine deposits, calcium scales, and other contaminants, ensuring the condenser operates at peak efficiency and preventing equipment damage.

5. Water Treatment Equipment

Water treatment equipment, such as water softeners and reverse osmosis systems, is essential for managing water quality in industrial processes. Water softeners often face issues with scale buildup due to hard water. Mild acid-based descalers, such as citric acid-based or acetic acid-based formulations, are effective for cleaning water treatment equipment without causing damage. These descalers dissolve mineral scales and remove residues, ensuring the water treatment equipment functions optimally and maintain water quality.

6. Process pipelines, oil, and gas pipelines. 

Pipelines can accumulate scales, corrosion, and debris. Descalers with rust inhibitors and surfactants are suitable for cleaning pipelines, as they dissolve mineral scales and remove rust, improving fluid flow and preventing further corrosion.

7. Evaporators

Forced-circulation evaporators, natural circulation evaporators are prone to scaling due to the concentration of solutes during the evaporation process. Descalers with strong acid formulations, such as sulfuric acid, effectively remove scale deposits.

8. Autoclaves

Steam sterilizers and pressure chambers accumulate mineral scales and residues. Acid-based descalers, such as citric acid or acetic acid-based solutions, are effective for removing scale deposits and ensuring proper sterilization.

Remember to follow manufacturer guidelines and safety precautions when using chemical descalers for different types of industrial equipment. Proper application, dilution, and safety measures are essential to achieve effective cleaning while ensuring the safety of personnel and equipment. Always thoroughly assess the equipment’s needs before selecting the appropriate chemical descaler for each application.

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