OBM Additives
Dual-soluble sulfur scavenger Zinc-based
Product introduction
UBPro-445 is a highly effective, zinc-based, dual-soluble sulfur scavenger designed for use in both hydrocarbon (oil/gas) and aqueous systems. Its advanced formulation enables efficient neutralization and removal of hydrogen sulfide (H₂S) and mercaptans across a wide range of applications, including crude oil, natural gas, produced water, and oil-based drilling fluids.
The product demonstrates excellent performance under both continuous injection and batch treatment conditions. Due to its dual solubility, UBPro-445 ensures comprehensive phase coverage, improving treatment efficiency and operational flexibility.It is particularly suitable for eliminating high concentrations of H₂S overflow in drilling operations, making desulfurization processes safer, more efficient, and easier to manage.
UBPro-445 forms stable, soluble reaction products, ensuring no secondary pollution and minimizing risks of scaling or deposition.
Technical Index
Appearance |
Colorless to transparent liquid |
Water Solubility |
Soluble |
pH value(neat) |
7.5-9.0 |
Specific gravity(20℃) |
0.92-1.05 |
Applications/Functions
▶ Oil & gas gathering and transportation systems
▶ Crude oil and natural gas treatment
▶ Produced water treatment
▶ Drilling Muds: Can be used in water-based muds to control sulfide contamination.
▶ Systems with high H₂S concentration challenges
▶ Systems with high H₂S concentration challenges
▶ Refining & Petrochemicals: Protection from sulfide corrosion
Advantages
▶ Dual Solubility: Effective in both oil and water phases
▶ High Efficiency: Rapid reaction with H₂S and mercaptans
▶ Non-Fouling: Reaction products remain soluble, preventing deposits
▶ Operational Flexibility:Suitable for continuous and batch treatments
▶ Wide Applicability: Performs well across various temperatures and system conditions
▶ Environmentally Considerate: No secondary contamination
Recommended Handling
▶ The recommended dosage is highly dependent on system-specific parameters such as concentration of H2S. A typical treatment range is 100 - 300 ppm(w/v), but a pilot test is required for optimal results.
▶ Handle as an industrial chemical wearing protective equipment and observing the precautions of described in the Material Safety Data Sheet (MSDS).
▶ Notes:Field trials are recommended for optimal dosage determination.
Packaging and Storage
▶ 200L/Drum or 1000L IBC
▶ Store in dry, well-ventilated area. Keep container closed. Keep away from heat, sparks and flames. Store away from incompatibles. Follow safe warehousing practices regarding palletizing, banding, shrink-wrapping and /or stacking.
Performance Evaluation (Lab Simulation Test)
Test Item |
Test Conditions |
Result |
Initial H₂S Concentration |
H₂S gas cylinder |
100ppm |
Dosage |
UBPro-445 |
50 ppm |
Reaction Time |
Static mixing at ambient temperature |
3 minutes |
Residual H₂S (Liquid Phase) |
After treatment |
≤ 4 ppm |
Residual H₂S (Gas Phase) |
After treatment |
Below detection limit |
Testing Method:
Laboratory simulations were conducted using H2S gas to replicate field conditions in sour oil and gas gathering systems. Colorimetric tubes were used as the medium for chemical injection, reaction monitoring, and H₂S concentration measurement.
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