To ensure network safety, odorants such as THT (tetrahydrothiophene) or mercaptans are added in ultra-precise doses. This process, called odorization, saves lives.
At Milton Roy, we are widely recognized for our dosing pumps and mixers, but we are also a global leader in gas odorization, thanks to our ODOROY solution, now a benchmark in Europe. We leverage the expertise of YZ Systems, our sister company within the Ingersoll Rand group, which brings over 40 years of experience in natural gas and LPG odorization to strengthen our know-how.
Natural gas and renewable gases such as biomethane are odorless. Without odorization, leaks would go undetected, posing serious risks to people and infrastructure.
Our solutions reach well beyond biomethane grid injection to address a fast-growing need — turning organic waste into energy at farm and plant level. Through anaerobic digestion, farmers and operators convert organic matter and sewage sludge into biogas in an oxygen-free environment, which can then be upgraded to pipeline-quality biomethane for grid injection, burned in cogeneration to produce electricity and heat on-site, or converted into bio-CNG and bio-LNG for natural gas vehicles and Methane Power tractors — cutting greenhouse gas emissions, displacing fossil natural gas, and adding a renewable energy source, especially at biogas plants and wastewater treatment facilities. And while we lead in renewable-gas odorization, our expertise spans the full duty range: high-pressure systems for gas transporters, very high flow rates (hundreds of thousands of m³/h) with redundant architectures for maximum reliability, modular turnkey packages that scale the number and type of odorization units, multi-odorant storage integration (THT, ethyl mercaptan, TBM, DMS and blends) with matched instrumentation, and durability-driven materials — carbon or 304/316 stainless steel with C5-M coatings for aggressive environments — ensuring accurate, compliant performance that holds up in the most demanding conditions.
YZ Systems, a pioneer in natural gas and LPG odorization for over 40 years, provides global field expertise and proven reliability. Milton Roy, with its advanced dosing technology, has become a key player in the European renewable gas market, where production occurs in small quantities but across many sites.
Together, we deliver solutions for all gas types:
Our shared goal: Safety and Performance, from large-scale industrial sites to compact biogas upgrading units at farms.
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 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 is perfect for farms that want to valorize biogas for mobility or local injection, without the constraints of large injection stations.
In response to climate and geopolitical challenges, Europe and France are ramping up renewable gas production:
Milton Roy supports this transition with solutions for:
And a complete ecosystem: pumps, compressors, loading arms – all designed for effective decarbonization.
Gas is often seen as competing with electricity production. In reality, biogas and biomethane can be stored, offering flexibility for producing electricity when needed. This storage capability makes renewable gas a strategic complement to intermittent renewable sources like solar and wind. By integrating odorization systems into biogas upgrading stations, we ensure safety and compliance while enabling farmers and industries to participate in the energy transition.
New to gas odorization — or looking to go deeper? Start with these essential reads, from the odorants that keep networks safe to the rise of renewable biomethane.
The practice of incorporating a distinct smell into natural gas began in the early 1900s, primarily for safety reasons.
Mercaptan, also called thiol, is an organic compound that contains sulfur. It has a –SH (sulfhydryl) group attached to a carbon atom.It is commonly added to odorless gases like natural gas and propane to help detect leaks by smell.
Tetrahydrothiophene, commonly known as THT, is a chemical compound widely used to odorize natural gas. Naturally, natural gas is odorless and poses a serious safety risk in the event of a leak.