DME (dimethyl ether) is a powerful, enabling molecule that can range from being ultra-low carbon to carbon-negative. It can significantly reduce the carbon footprint of the transportation sector and beyond 1) as an energy-dense, cost-effective means to move renewable hydrogen, 2) as a blending agent for propane, and 3) as a diesel replacement.
DME has been used for decades as an environmentally safe, non-toxic aerosol propellant as well as to blend with propane. It can be produced domestically from a variety of feedstocks, including dairy biogas, food waste, and waste streams from industrial processes.
DME is a gas under ambient conditions. However, because it can be stored as a liquid under moderate pressure, it eliminates the need for the high-pressure containers used for CNG or cryogenics, as is the case with LNG. DME’s easy handling properties make fueling and infrastructure relatively simple and inexpensive.
DME offers a 68-101% Reduction in Greenhouse Gases. The California Air Resources Board (CARB) estimates biogas-based DME made by the Oberon process has a carbon intensity of -278 when made from renewable natural gas (CI -150). DME is approved as a renewable fuel under the U.S. Environmental Protection Agency’s Renewable Fuels Standard, making it eligible for RINs credits when made from biogas with the Oberon process. DME has also been issued specifications by ASTM International and the International Organization for Standardization (ISO).
Oberon Fuels is dedicated to delivering innovative solutions to companies, industries, & countries to reduce emissions, waste, and carbon impact. Together, we are working toward the day when DME plays a major role in decarbonizing the transportation sector and beyond.
For further information on DME, please visit:
The International DME Association (IDA)
The US Department of Energy’s Alternative Fuels Data Center