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Dimethyl Ether

May 4, 2026

Oil and Natural Gas Corporation (ONGC), along with CSIR–National Chemical Laboratory (CSIR-NCL), is set to launch an industrial pilot project to produce dimethyl ether (DME) in Pune.

About Dimethyl Ether:

  • It is a synthetically produced alternative to diesel for use in specially designed compression ignition diesel engines.
  • Properties of Dimethyl Ether:
    • High Cetane Number: It has a very high cetane number, which is a measure of the fuel’s ignitibility in compression ignition engines.
    • Under normal atmospheric conditions, DME is a colorless gas.
    • Clean Burning: It burns cleaner, emitting minimal amounts of soot, nitrogen oxides (NOx), sulfur oxides (SOx), and particulate matter.
    • Thermal efficiency: It exhibits thermal efficiency that is comparable to traditional fuels, making it a viable substitute
    • Alternate Fuel: It can be a viable alternative fuel and engine technology to adapt to conventional diesel engines used in India’s economy’s agricultural and transport sectors.
  • Application of Dimethyl Ether:
    • It is used extensively in the chemical industry and as an aerosol propellant.
    • It is used in chemical industries and also to produce dyes and plastics.

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