Pour Point Depressant (PPD) for Crude Oil
Pour point depressant (PPD) is a polymeric additive that reduces the pour point of waxy crude oils by modifying wax crystal morphology, preventing large crystal aggregation and maintaining flowability at low temperatures. Effective dosages range from 100–1000 ppm, typically reducing the pour point by 15–30°C. PPD enables safe transportation of high-wax crude oils through pipelines in cold climates without heating or blending.
Technical Specifications
| appearance | Light yellow to amber liquid |
| active content (%) | ≥40 |
| molecular weight (Da) | 5000–50000 |
| pour point of PPD product (°C) | ≤-15 |
| pour point reduction on test crude (°C) | ≥15 |
Applications
- Cold-climate crude oil pipeline transportation
- Waxy crude oil cold start-up protection
- Offshore subsea cold pipeline flow assurance
- Crude oil storage tank cold-weather management
- Fuel oil and diesel pour point reduction
Key Features
- Reduces crude oil pour point by 15–30°C
- Modifies wax crystal structure to maintain flowability
- Crude oil specific — customization available based on wax composition
- Enables energy-efficient, unheated cold pipeline operation
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