LK-AF 633

Water Dispersible Antifoam Compound

Maximize Efficiency in Oil & Gas Processing with LK-AF 633

In the high-stakes oil and gas industry, maintaining seamless operations is crucial. Elkay Silicones presents LK-AF 633, a high-performance silicone-based antifoam and defoamer designed to eliminate foam-related disruptions in amine and glycol dehydration units (gas sweetening).

By integrating LK-AF 633 into your system, you can boost productivity, minimize operational disruptions, and achieve superior performance in gas sweetening processes.

Why Choose LK-AF 633?

  • Dual-Action Formula – Prevents foam formation and rapidly eliminates existing foam.
  • Proactive & Reactive Application – Can be added before foaming starts or inject when foam height rises beyond a critical level.
  • Enhanced System Efficiency – Reduces downtime, improves gas processing rates, and ensures smoother operations.
  • Optimized Performance – Formulated to withstand harsh processing conditions, delivering consistent and reliable results.
  • Extreme Condition Stability – Effective across a wide pH range, high shear, and extreme temperatures.
  • Non-Fouling & Chemically Inert – Leaves no residual layers in vessels or heat exchangers.
  • Easy to Use – Readily disperses and dilutes for aqueous systems.
  • Highly Efficient at Low Dosages – Works effectively at 0.001–1.0%, minimizing chemical consumption.

Technical details:

Applications:

Achieve Maximum Efficiency with LK-AF 633

  • By integrating LK-AF 633 into your gas sweetening process, you can boost productivity, reduce downtime, and enhance system performance ensuring cost-effective and reliable operations.

Frequently asked questions (FAQ):

What is LK-AF 633?

LK-AF 633 is a silicone-based, water-dispersible antifoam and defoamer designed for amine and glycol dehydration units (gas sweetening).

  • Gas sweetening (Amine Units): Controls foam during removal of hydrogen sulfide (H₂S) and carbon dioxide (CO₂), ensuring efficient “sweetening” of natural gas.
  • Glycol Dehydration Units: Prevents foaming in dehydration towers, used to remove water vapor from natural gas, thereby avoiding operational upsets.
  • Absorber/Stripper Towers: Minimizes foam-related issues caused by contaminants such as corrosion inhibitors, hydrocarbons, or surfactants, ensuring stable liquid levels and pressure control.

The recommended dosage of LK-AF 633 typically ranges between 0.01% and 1.0% of the total system volume, depending on the severity of foaming and the type of process.
For mild foaming conditions, very low levels (around 0.01–0.05%) are often sufficient.
For moderate to severe foaming, higher dosages may be required, up to 1.0%.
Lab trials and site evaluations are strongly recommended to determine the optimum dosage under actual operating conditions.

  • Faster foam control: Provides rapid foam knockdown (within seconds), whereas traditional defoamers often act slower.
  • Longer foam suppression: Maintains foam inhibition for extended periods, reducing the need for frequent dosing.
  • High stability: Remains effective under extreme pH, high shear, and elevated temperatures, conditions where traditional defoamers may degrade or lose efficiency.
  • Lower dosage requirement: Delivers performance at very low concentrations (0.01–1.0%), making it more cost-efficient compared to higher-dose conventional products.
  • Ease of use: Water-dispersible and simple to dilute, ensuring quick and uniform distribution in process systems.

Mode of Addition: Can be used directly or diluted with water (commonly 50:50 or up to 70:30 product-to-water) for easier dispersion and improved performance.
Application Points: directly onto existing foam for quick suppression, or dose into the system before foam formation as a preventive measure. For processes prone to continuous foaming, it can be injected continuously for stable long-term control.
Dosage Range: Typically, 0.01 – 1.0% of system volume, depending on foam severity and operating conditions.
Best Practice: Conduct lab trials or pilot testing to determine the optimum dosage for each specific application.

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