HLN-129 Phosphorus-Free High-Temperature Corrosion Inhibitor
Product Features
- Environmentally Friendly: Free from phosphorus, chloride, and metals, ensuring compatibility with catalysts and downstream processes.
- Thermal Stability: High decomposition temperature (>500℃) ensures reliable performance in high-temperature environments.
- Strong Adsorption: Forms a protective passivation film on metal surfaces, comparable to 316/317 stainless steel, enhancing corrosion resistance.
- Versatile Solubility: Miscible with aromatic hydrocarbons and diesel in any ratio, simplifying application processes.
Technical Specifications
|
Parameter |
Technical Indicators |
Test Method |
|
Appearance |
Uniform liquid |
Visual Inspection |
|
Solubility |
Miscible with aromatic hydrocarbons |
Visual Inspection |
|
Density (20℃, g/cm³) |
0.95~1.00 |
GB/T 2540 |
|
Freezing Point (℃) |
≤-10 |
GB/T 510 |
|
Closed Flash Point (℃) |
≥61 |
GB/T 261 |
|
Phosphorus Content (%) |
≤0.01 |
SH/T 0296-1992 |
|
Chloride Ion Content (%) |
≤0.01 |
ASTM D7536 |
|
Corrosion Inhibition Rate (%) |
≥90 |
Q/WRUN002-2019 |
Applications
- High-Temperature Corrosion Protection: Designed for high-acid and high-sulfur atmospheric and vacuum distillation units, primarily for oil-phase corrosion protection.
Usage Instructions
1. **Injection Process:** Pump the product directly as a pure solution or dilute it with diesel. For dilution, use nitrogen to achieve homogeneous mixing.
2. **Injection Points:** Recommended at the reducing line of the distillation tower, bottom pump inlets, or reflux pump inlets. Use multi-point injection for optimal coverage.
3. **Pre-Passivation:** During the initial 5 days, inject at 30-50ppm to form a solid corrosion inhibitor film.
4. **Regular Use:** Typical concentration ranges from 5-25ppm. Adjust based on crude oil acid value, sulfur content, and unit load.
5. **Pipeline Maintenance:** Before switching corrosion inhibitor types, flush and purge the injection pipeline thoroughly to prevent clogging.
Packaging, Storage, and Safety
- Packaging: Available in 200L iron drums or plastic drums.
- Storage: Store in a cool, dry, and ventilated place at room temperature. Shelf life: 2 years.
- Safety: Keep away from fire sources. Refer to the Material Safety Data Sheet (MSDS) for additional safety information.


