Biomethane / RNG renewable natural gas win for YZ Systems
GRDF, the French natural gas distribution company, has chosen to partner with YZ-Systems and Milton-Roy Europe to supply odorization units for its Biomethane plants over the next 10 years.
The odorization units are used for the accurate injection of Tetrahydrothiophene (THT) into Biomethane. THT is a molecule injected into gas to give it a characteristic odor, so any leaks are readily detectable for public safety. Each new biomethane plant managed by GRDF will require the supply of a single THT injection skid.
YZ Systems’ over three decades long experience as a market leader in natural gas odorization in North America, combined with Milton Roy Europe’s world class production facility and engineering team based locally in Pont-Saint-Pierre, forms the winning combination for this mission critical application.
Together, Milton Roy Europe and YZ Systems aim to support GRDF's energy transition by providing turnkey solutions to ensure reliable and efficient biomethane injection in gas distribution networks in France. The partnership with GRDF further strengthens the presence of these Ingersoll Rand sister brands in Europe, particularly in France, in the arena of renewable energies.
YZ / Milton Roy - Two Solutions for Renewable Gas Odorization
To meet the diversity of projects, Milton Roy and YZ Systems offer two complementary approaches for odorization.
Both solutions share a common goal: secure odorization while supporting the energy transition, whether for industrial or agricultural projects.

ODOROY: The European Reference for Gas Grid Injection
- Electric pump for ultra-precise dosing at very low flow rates
- Full automation for simplified operations
- Validated by GRDF and NATRAN (ex GRT Gaz) following two years of rigorous testing under high-stress conditions to ensure representativeness of all biomethane process scenarios.
ODOROY is the benchmark solution for integrators of injection stations, ensuring safety and compliance. It was designed for biomethane injection sites where technical requirements are high:

LVO: Simple and Autonomous for All Installations
- Compact skid dedicated to low flow rates
- Pneumatic pump operating without electricity, ideal for isolated sites
- Fast installation and attractive costs, while meeting safety standards.
LVO is perfect for farms that want to valorize biogas for mobility or local injection, without the constraints of large injection stations.
