Compressed Natural Gas (CNG)

  • CNG Step 1A
    What is CNG?
    CNG Step 1B
    Transportation & Filtering
    CNG Step 2
    Compression
    CNG Step 3
    Storage
    CNG Step 4
    Fuel Distribution
  • CNG Step 1A

    What is CNG?

    CNG is a fuel made by compressing natural gas or biogas to less than 1% of its volume. Once compressed, CNG is stored and distributed at a significantly lower cost than gasoline or diesel.



    CNG Step 1B

    Transportation & Filtering

    Natural gas pipelines transport natural gas to compressor stations where it passes through a gas dryer. These dryers contain scrubbers and filters that capture liquids and other unwanted particles. Once dry, the gas travels to an Ariel compressor.



    CNG Step 2

    Compression

    Here, the gas is compressed through two to five stages of compression until it reaches a pressure of 4,500 psig.



    CNG Step 3

    Storage

    The compressed natural gas is sent to a priority panel that directs the flow of CNG from the compressor to the on-site, above ground storage vessels.



    CNG Step 4

    Fuel Distribution

    When needed, the CNG flows from the storage vessel to the dispenser, where customers fill their natural gas vehicles - much like a conventional fueling station.




  • Ariel's CNG Compressors

    Ariel's CNG compressors are derived from the same designs used in our field gas, process, and transmission services, and are intended to run 24 hours a day, 365 days a year. This combination of advanced design and industry experience makes the Ariel compressor one of the most robust, continuous duty rated compressors in the CNG market.

    Download the CNG Compressors Brochure

    Ariel's CNG Compressors 1

    CNG is a fuel made by compressing natural gas or biogas to less than 1% of its volume. Once compressed, CNG is stored and distributed at a significantly lower cost than gasoline or diesel.

    Maximum Efficiency

    A choice of stroke lengths allows Ariel compressors to be operated at the rated RPM of the driver to maximize efficiency, reduce maintenance, and lower energy costs.

    Large Pressure Range

    Many sizes of double acting and single acting cylinders give Ariel the ability to operate efficiently with suction pressures ranging from a slight vacuum to more than 750 psi. Normally configured in two to five stages, Ariel CNG compressors are used in refueling services to 4,500+ psi.

    Large Coverage Range

    Typically, Ariel compressors are used in CNG services flowing from 125 (200) to 1,250 SCFM. Ariel compressors are currently running in CNG applications from 50 bhp to more than 1,200 bhp.

    Low Maintenance

    High pressure, forged steel cylinders with ion-nitride hardened bores and piston rods, combined with PEEK high-pressure piston rings result in less maintenance and an efficient, long-term operation.

    Smooth, Quiet Operation

    A horizontal, balanced-opposed compressor design with a fully enclosed auxiliary drive assures a quiet, virtually vibration-free operation.


  • Case Studies

  • Kentuckiana Cleanfuel

    Learn how the Louisville, Kentucky-based CNG solutions company is expanding with the help of Ariel CNG compressors.

    Click here to learn more

    Rumpke Colerain Township Landfill

    Learn how one midwest company is taking its trash and turning it into fuel – all thanks to an Ariel compressor.

    Click here to learn more

    Blue Fuel – Ariel Corporation Converts its Factory Fleet to CNG

    In the last few years, Ariel Corporation has acquired a number of CNG-dedicated and bi-fuel (CNG + gasoline) vehicles with two ideas in mind: First, the fuel savings offered by CNG is still significant in comparison to diesel fuel even in light of recent drops in the price of petroleum. Secondly, Ariel, in its support of the expanded use of natural gas throughout the energy sector.

    Click here to learn more

    Smith Dairy Products

    As Ohio's Utica shale is developed, one eastern Ohio Company is taking advantage of the environmental and financial paybacks provided through domestically extracted natural gas.

    Click here to learn more

    City of Dublin

    City of Dublin employees, alternative fuel industry representatives and local residents gathered on Thursday, June 28, 2012 to celebrate the official opening of Dublin’s first publicly accessible compressed natural gas (CNG) fueling station.

    Click here to learn more

    To view more Ariel Case Studies, please visit our Ariel In The Field page.