Gas Expansion Turbines
Efficient energy recovery for gas pressure reduction and industrial applications
Gas expansion turbines from PBS Power Engineering utilize the energy contained in gaseous media during pressure reduction and various industrial processes. They offer high efficiency, reliability, and flexibility when operating under different pressures, temperatures, and gas types. Their primary use is in the gas industry, where they enable electricity generation during the pressure reduction of natural gas or hydrogen. They are also widely used in the chemical and petrochemical industries, where they convert the energy of process gases or serve for gas cooling.
Flexible Application
Precise Pressure Control
Safe Operation
Turnkey Solutions
Turbines portfolio
ETG I – Single-stage Expansion Turbines
Compact units with one radial or axial wheel on a common shaft. They feature high efficiency thanks to optimized flow-path geometry. Typical power output reaches up to 1 MW, with outlet pressure up to 3.5 MPa.
ETG II – Two-stage, Dual-shaft Turbines
A combination of high- and low-pressure modules designed for two-stage expansion or applications with two pressure levels. Each stage operates on its own shaft, providing high efficiency with a simple mechanical design. Electrical output up to 12 MW.
Technical Parameters
ETG I, ETG 2
Technical parameters
Expansion turbines ETG I
Expansion turbines ETG II
Technical parameters
Inlet gas
Expansion turbines ETG I
pressure up to 6.5 MPa., max. temperature 550 °C, flow rate up to about 150 thousand Nm3/hr
Expansion turbines ETG II
pressure up to 6.5 MPa., max. temperature 550 °C, flow rate up to about 300 thousand Nm3/hr
Technical parameters
Governing
Expansion turbines ETG I
nozzle or throttle governing with one control valve
Expansion turbines ETG II
nozzle or throttle governing with one control valve
Technical parameters
Clutch power
Expansion turbines ETG I
up to 6 MW
Expansion turbines ETG II
up to 10 MW
Technical parameters
Outlet gas
Expansion turbines ETG I
pressure up to 3,5 MPa
Expansion turbines ETG II
pressure up to 3,5 MPa
Technical parameters
Gas heating
Expansion turbines ETG I
in the natural gas turbine, the gas is typically heated before it enters the turbine
Expansion turbines ETG II
in the natural gas turbine design, gas heating is alternatively provided by one heater upstream of the gas inlet to the turbine or in two heaters, where the second heater is placed in the transfer pipe
Services
Design Calculations and Engineering
- Individual technical solutions, preparation of technical and design documentation
Assembly and Commissioning
- Installation of equipment and ensuring trouble-free start-up
Maintenance and Modernization
- Technical support and equipment upgrades to ensure long-term operation
Technical Consulting and Service Interventions
- Expert advisory and rapid response to customer service needs
Overhauls and General Repairs
- Regular inspections, major repairs, spare-part supply, and remote monitoring of the control system
- Includes retrofit, technical evaluation, and performance enhancement of older equipment
Get in touch
Get expert support, access detailed technical information, or explore cooperation opportunities.