Transportation-Related Applications Of TEG

Posted on: 23 June 2018

TEG, or triethylene glycol, has multiple applications. Even within one of those categories of applications, there are sub-applications for this chemical. For the sake of argument, let's say that you work in the natural gas and propane industry as it relates to transportation. Here is how TEG can be used and what the benefits of use are:

Powering Vehicles with Natural Gas

Natural gas is an alternative fuel that powers more than one-hundred-fifty-thousand vehicles in the U.S. alone. That may not seem like a lot of vehicles, but the number grows everyday. In order for these vehicles to continue running, they need substations where they can refuel. They also need natural gas that is less humid going into the tanks because of the way the engines in these vehicles are designed. By adding TEG to the natural gas tanks in a filling station for these vehicles, the TEG will adequately "dry out" the natural gas before it enters the engines of these vehicles.

Powering Vehicles with Propane

In regards to vehicles operating on propane, it becomes even more essential that the humidity in the propane is removed. This is due to the fact that vehicles running on propane typically use a liquid form of this gas, known as liquified petroleum gas. Many major and minor cities have adopted this energy source to power their public transit systems, namely their buses.

This type of gas is in even greater use and demand than natural gas for powering vehicles. As such, the companies that process and fill tanks with LPG for these cities must make sure that there is adequate TEG in the holding tanks so that the propane going into the bus tanks will not cause the buses to choke on extra moisture in the fuel lines. 


A lot of cold food storage delivery trucks also rely on natural gas or propane. They use these gases for refrigeration processes so that they can travel long distances without the threat of food spoilage, or worse, melted foods all over inside the delivery trucks. Since it is necessary to keep the food both cold and dry so that ice crystals do not form on the food and cause it to either spoil upon thawing or cause toxic freezer burn, TEG can be used to minimize the moisture in the propane or natural gas in the refrigeration tank system of these important trucks.