Technology showcase · Recovering pressure energy
SARUS
Recovering pressure energy from gas networks.
Active member since August 2023
Understand the technology
Key fact Work · cooling · electricity
01 — Understand
SARUS technology, in three points
SARUS systems generate mechanical work, cooling and electricity from pressure energy. Applications range from straightforward pressure reduction to complex gas liquefaction.
01 The solution
Recovering pressure energy from gas networks.
02 Technology principle
A free-piston expander and linear generators convert gas expansion into useful work, cooling or electricity.
03 Applications
- Natural-gas networks
- CNG and LNG
- Gas liquefaction
- Distributed industrial gases
SARUS is a deeptech start-up supporting the energy transition through applications for compressed and liquefied natural gas. Its innovation consists of affordable, robust energy-recovery equipment for small-scale installations. A maintenance-free high-pressure expander helps industrial users integrate lower-carbon energy.
The technology recovers pressure energy from natural-gas networks to perform useful work and reduce energy costs. SARUS also develops linear generators that turn expander motion into electricity and thermodynamic systems that liquefy gases for low-temperature industrial applications.
The company aims to deploy millions of efficient small-scale systems for energy recovery and green-energy integration. Its work could significantly affect gas networks and distributed production of industrial gases. SARUS has received funding and support from organisations including Bpifrance and Climate-KIC and has won several accelerator and innovation programmes.
Integrating sustainable solutions into gas networks
SARUS systems produce mechanical work, cooling and electricity from pressure energy.
The company’s free-piston expander and linear generators convert gas expansion into electrical energy. Open- or closed-loop thermodynamic configurations can also liquefy gases for low-temperature industrial use. The result is an efficient, affordable route for integrating lower-carbon energy into gas networks.
