Product Data:

• 3 x 50% compressor train, 1620kW cooling duty at + 10°C.
• Single-stage screw compressor, Howden 255
• Fully welded plate in shell heat exchanger gas-gas pre-cooling to  optimise  the  refrigeration  duty
• Flooded fully welded plate in shell evaporator cooling CSG
• Air-cooled fin-fan condenser
• Liquid refrigerant  injection oil cooling

Coal seam gas (CSG) gathered from well heads in the Surat Basin of Southern Queensland is compressed and dehydrated to provide ability of transferring within a dry trunk line. The refrigeration package cools the compressed gas to + 10°C.

A complete dew point control unit is supplied, including not only the refrigeration system, but also the associated process equipment, including gas heat exchanger, gas chiller and low temperature separator. Each complete train is installed on one multi-level skid to optimise the footprint, whilst maintaining accessibility within the skid.

The unit is installed outdoors in a remote location. However, the sound power level requirement is less than 98 dB(A). This stringent sound level is achieved by using close-fitted cladding on the compressor and its discharge. Because of the effective design of acoustic cladding, the installation of a ventilated enclosure and complications of maintenance and access were avoided.

After-sales support is ongoing through training, maintenance, spares, and technical support well after commissioning.