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Methane to use in CNG conversion

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  • Methane to use in CNG conversion

    I was curious what the overall opinion is about utilizing methane from a digester straight into a cng conversion?

    Past that, is anyone aware of any company that has an economical way of taking the methane and presurizing into a tank to use on a truck etc?

    John

  • #2
    Re: Methane to use in CNG conversion

    Many of the sewage treatment plants use Digester gas to run Modified diesels or gas turbines as a prime mover to produce electricity or compressed air. It doesn't need much pressure to be used on site.

    The gas also has to be pretty dry by the time it gets to the engine.

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    • #3
      Re: Methane to use in CNG conversion

      About a year ago, just for something to try , I hooked a Fuelmaker FM4 to a digester at a dairy farm to see what would happen. The gas from this digester was being used to run a boiler and a generator set. Anyway, fueled a 2000 Cavalier with the gas and the car ran fine. This gas was about 55% methane and the fuel system in the car did a pretty good job of adjusting to it. Ran a couple of tanks through it and didn't have any problems. If you were going to do this full time you would want some good filters and a dryer upstream of the compressor.

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      • #4
        Re: Methane to use in CNG conversion

        Not open to the public but they fill trucks from the landfill (Bowerman landfill in OC, CA):

        http://www.prometheus-energy.com/new...nto%20gold.pdf
        Last edited by OhMyGas; 05-19-2009, 01:38 PM.

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