A scale is a hard, crystalline deposit that forms on surfaces in contact with water. When left unchecked, scales can significantly reduce the efficiency of heating systems, boilers, and other industrial equipment. To prevent scale build-up, scale inhibitors—chemical compounds—are used in various industrial processes and equipment. These inhibitors work by interfering with the crystallisation process that forms scale, ensuring the machinery and piping systems operate efficiently.
Why Use Scale Inhibitor Products?
Multiple deposits (calcium carbonate or calcium sulfate) within various systems and equipment can clog pipes, reduce efficiency, damage equipment, and lead to costly maintenance and downtime. By incorporating scale inhibitors, industries can maintain smoother operations, save money, and prolong the lifespan of their equipment.
Types of Scale Inhibitor Compounds
Scale inhibitors are categorised into chemical scale inhibitors and physical scale inhibitors, respectively. The compounds used in a chemical scale inhibitor are designed to target specific types of scale, such as calcium carbonate or barium sulfate. These compounds include phosphonates, polymers, and carboxylates, each tailored to different scaling issues.
- Chemical Scale Inhibitors – These inhibitors are compounds that interact with potential scale-forming ions to prevent their precipitation. They are typically added to water or process streams to keep minerals dissolved, thus avoiding scale formation.
- Physical Scale Inhibitors – Physical scale inhibitors use physical principles such as magnetic, electromagnetic, or ultrasonic fields to alter the properties of water and inhibit scale formation. These methods are often employed where chemical additives are not feasible.
How to Choose the Right Scale Inhibitor?
Selecting the appropriate scale inhibitor depends on the specific needs of the system, including the type of water, temperature, pressure, and the nature of the scale-forming minerals. Consulting with professionals and specialists can help determine the best inhibitor for a particular application.
Typical Applications of Scale Inhibitors:
Scale inhibitors are widely used in several industries where water hardness is a concern and can lead to scale build-up. Some typical applications of scale inhibitors include:
- Oil and Gas
- Water Treatment
- Power Generation
- Food & Beverage Industry
- Cooling Systems
- Desalination Plants.
