Industrial Turboexpanders
PTC supplies API and non-API turboexpanders for petrochemical plants, ASUs, NGL recovery and cryogenic processes in cooperation with established international licensors.
Turboexpanders are widely used in petrochemical industries, including propane, propylene and PTA production; in ASUs for cryogenic expansion; and in natural-gas processing, including NGL and gas-liquid recovery units.
Drawing on advanced turbomachinery expertise and cooperation with established international licensors, PTC designs and supplies advanced turboexpander solutions:
- Expander–Generator, TEG Series, for simultaneous power generation and process cooling.
- Expander–Booster Compressor, TEB Series, for higher efficiency and optimized compression processes.
PTC and its international technical partners design and manufacture equipment in full accordance with applicable API and non-API standards to ensure stable operation, long life and optimum efficiency under varied operating conditions.
Benefits of PTC turboexpanders
- Lower energy consumption and improved process efficiency.
- High efficiency and stable performance under severe conditions.
- Custom design for project and process requirements.
- Low maintenance through optimized design and quality components.
- Complete engineering, installation, commissioning and training support.
General technical specifications
| Specification | Turbo Expander & Booster — TEB | Turbo Expander & Generator — TEG |
|---|---|---|
| Type | Single and dual unit, warm and cold | Single-stage and multi-stage |
| Flow rate | 4,000–120,000 Nm³/h; up to 120,000 for ASU | 4,000–120,000 Nm³/h |
| Pressure range | 0.2–7.0 MPa | 0.2–7.0 MPa |
| Pressure ratio | Up to 21:1 | Up to 70:1 |
| Temperature range | -260 to 200°C | -260 to 200°C |
| Expander efficiency | Up to 89% | Up to 87% |
| Refrigeration power | 100–3,000 kW | 50–8,000 kW |
| Shaft speed | 10,000–80,000 rpm | 5,000–30,000 rpm |
| Impeller size | 80–550 mm | 80–550 mm |