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DME Reduces the Carbon Intensity of Propane

Under ambient conditions, rDME is a gas that can be stored as a liquid under moderate pressure, making it ideal for blending with propane for use in transportation fuels, cooking, heating and other uses.

In California alone, more than 6,700 vehicles – including 1,900 school buses – run on propane. Manufacturers such as ROUSH CleanTech are marketing increasing numbers of light- and heavy-duty vehicles that run on propane.

DME’s easy handling properties make fueling and infrastructure relatively simple and inexpensive.

As calculated by the California Air Resources Board (CARB), the current carbon intensity (CI) score of propane is 83 gCO2e/MJ. CARB has calculated that, when rDME is made from dairy biogas (which itself has a CI of -150), rDME has a CI value of -278.

With only a 5% blend of rDME, propane’s baseline CI value decreases from 83 to 65, and at a 20% blend the CI value decreases to just 11.

The combination of rDME’s handling properties, its ability to be produced from diverse, abundant, renewable resources, and its significant CI-reducing qualities make it an excellent choice for blending with propane.

Renewable DME will play a critical role in helping industry and fleets meet the new low carbon fuel/emissions reduction standards in places like California and others around the world.