Questions about recovering BOG to CNG filling stations?
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The BOG gas evaporated from LNG storage tanks is recovered and sent to CNG filling stations. However, due to factors such as weather and site conditions, the amount of BOG generated can vary significantly, making it difficult to ensure stability in this amount. My question is: what type of compressor should be used in such situations?
It’s a reciprocating type, but isn’t the amount of BOG evaporated from the storage tanks too small to be used as fuel at CNG filling stations? Unless you have multiple storage tanks or some other source of supply
Right! More importantly, the output volume is uncertain. Headache. .
It can be calculated! For the daily evaporation rate, the compressor is equipped with variable frequency control.
I would like to ask what the current trend is regarding the types of compressors used in gas stations? Screw, piston, or something else? The gas stations I’ve seen still mostly use pistons; I don’t know why Finally, thank you for your reply!
We have communicated with the manufacturer, and they said that the frequency conversion rate must be at least 1000 cubic meters per hour. There is still a gap compared to our actual conditions. Our on-site traffic is sometimes even lower.
What pressure is required to extract it for use in CNG? This is quite crucial
The BOG from gas station pumps is an inevitable phenomenon; now, pump-free gas filling systems have been introduced. The effect is much better
If the amount of BOG is large, it can be collected in a recovery tank and then compressed into CNG; if the amount is small, an LNG plunger pump can be used