SOCLEMA > Solutions > Odorization and injection

The integrated solution for odorization
of gas | SOCLEMA

Why Odorize the gas?

Gases such as Natural gas, oxygen and nitrogen are inherently odourless, but potentially dangerous. To detect possible leaks and avoid any risk of explosion, the gas is odorized.

These gases are odorized with a substance that gives off a strong and unpleasant odor, such as T.H.T (tetrahydrothiophene) or T.B.M (tertiary butyl mercaptan).
This process is very important. The gas odorization system must therefore operate reliably and accurately. To continuously inject the appropriate amount of odorant, it is important to dose this amount accurately according to the volume of gas to be treated.

Soclema_Skid Odorisation Odozen

Odorization system for natural gas and biomethane OdoZEN

OdoZEN is a patented natural gas odorization system. It is particularly designed for renewable gas such as bio-methane. This high precision system is reactive to sudden variations in pressure and flow rate and allows a wide range of injection.

The OdoZEN odorization system allows the injection of very small amount of odorous product, Continuous and adapted to different flow rates and pressures (almost immediate response). It is adapted to the injection of odorous products at very low flow rates (from 5Nm3/h) in the gas line, which is not the case for other known systems. These systems are mainly used for odorization of fossil natural gas with high flow rates (above 500 Nm3/h for the low pressure network and above 40,000 Nm3/h for the high-pressure network), while the biomethane flow rates are much lower (below 100 Nm3/h for the low pressure network and less than 800 Nm3/h for the high pressure network).

This system avoids a insufficient, excessive or inappropriate odorizationand thus prevents frequent production stoppages. The system responds reliably and efficiently to the operating conditions of the natural gas supply veins and specifically of renewable gas.

This odorization system avoids production stops and the availability rate of the injection is significantly improved.

In addition, OdoZEN is a system turnkey and autonomous because of its automatic regulation via a dedicated controller. It does not require any particular intervention. Compact and transportable, it can easily be used on different sites for backward odorization corrections or in storage or for the start-up phases of a new installation ora network extension.

Cane head box for odorant injection control

SOCLEMA offers a integrated solution for the odorisation of natural gas or biogas. This solution consists of an injection probe equipped with a sprayer and an enclosure mounted directly on the probe which allows to control the injection of THT.
The proposed system, developed in partnership with GRTgaz, allows to measure the THT continuously and accurately thanks to the mass flow controller, and on the other hand to spray the THT homogeneously to prevent the remaining liquid tht in the gas lines.
The enclosure can be mounted on a GENIE 760 Injection probe or GENIE 702 probe. The interest of the GENIE 702 probe is that it is available in large lengths (up to 3 meters) and that this system can therefore be installed on buried pipes without the use of a pit.

THT injection system to odorize natural gas