Project Outcomes

• CSL identified significant compression cost savings by taking gas from the LTS network – as shown in the graph.
• It was recognized there was no need to regulate pressure to protect downstream appliances since gas requires further compression. CSL presented the case to the HSE to gain exemption – causing industry rules to change.
• A detailed analysis and risk assessment was performed to eliminate the requirement of an ROV.
• Since the compressors are capable of processing 2000 kg/h of Bio-CNG to the truck pressure (250 bar), gas is stored in a buffer vessel at 300 bar, to avoid potentially damaging quick stop-starts if Bio-CNG was directly supplied into trucks.