Hydrogen from DME
- Given that it's formula is C2H6O, each molecule contains 6 Hydrogen Atoms, although at STP it is a diatom
- Given that it is more easily stored (it is similar to Propane it only requires moderate pressure (~75 PSI + ) to liquify
- "Propane is stored onboard a vehicle in a tank pressurized to about 150 pounds per square inch"
- "Most current applications use high-pressure tanks capable of storing hydrogen at either 5,000 or 10,000 pounds per square inch (psi). For example, the FCEVs in production by automotive manufacturers and available at dealerships have 10,000 psi tanks"
- So from an appropriate materials standpoint (for tanks) it makes sense
- Also if it is used as a Diesel Fuel replacement, it could be converted to hydrogen for usage in Fuel Cell APUs etc
- It could also allow for shipment/storage of hydrogen in a similar manner to Propane
- Polyoxymethylene dimethyl ethers / OMEx
- Other Hydrogen Carriers :
- Liquid Organic Hydrogen Carriers
- Methane ( CNG , LNG , RNG , etc), Methanol , Formic Acid , etc
- Metal–Organic Frameworks
- A 2022 Whitepaper by Oberon Fuels , The US DOE, and Los Alamos National Laboratory Titled : "DME as a Renewable Hydrogen Carrier: Innovative Approach to Renewable Hydrogen Production - Design, Build, and Demonstrate integrated DME-SR process using Los Alamos National Laboratory's novel Duel-Catalyst bed to produce 25 kgs of Fuel Cell Grade Hydrogen per day (Also states that the goal is an End of Project TRL of 6-7 )
- A 2006 Paper Titled "Hydrogen Generation from Dimethyl Ether for Fuel Cell Auxiliary Power Units"
- A 2007 Thesis Paper Titled "Hydrogen Generation from Dimethyl Ether by Autothermal Reforming"
- Both of the above two links mention Marita Nilsson who seems to have done work on DME, Fuel Reforming , and SCR contamination / Catalyst Poisoning issues?, may be worth a contact sometime