Baseload LNG Production in Stavanger - Linde Engineering
Baseload LNG Production in Stavanger - Linde Engineering
Baseload LNG Production in Stavanger - Linde Engineering
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20<br />
Truck unload<strong>in</strong>g at <strong>LNG</strong> satellite station<br />
Trailer load<strong>in</strong>g station<br />
Dur<strong>in</strong>g load<strong>in</strong>g of <strong>LNG</strong> trucks the normal load<strong>in</strong>g<br />
rate per pump is 65 m³/h. Both <strong>LNG</strong> truck load<strong>in</strong>g<br />
pumps can be used simultaneously. The expected<br />
total time for fill<strong>in</strong>g a trailer is close to<br />
one hour, <strong>in</strong>clud<strong>in</strong>g time for connection and<br />
disconnection. The actual fill<strong>in</strong>g time is 45 m<strong>in</strong>.<br />
At simultaneous fill<strong>in</strong>g of two trailers, the total<br />
<strong>LNG</strong> flow rate is 150 m 3 /h. Thus, with the two<br />
fill<strong>in</strong>g stations operat<strong>in</strong>g <strong>in</strong> parallel, theoretically<br />
some fifty trailers could be filled every 24 hours.<br />
Boil-off gas system<br />
Two boil-off compressors, each with 100 % capacity,<br />
are <strong>in</strong>stalled at the term<strong>in</strong>al. The ma<strong>in</strong><br />
task is to evacuate excessive boil-off and displacement<br />
gases <strong>in</strong> order to keep the pressure<br />
<strong>in</strong> the storage tank with<strong>in</strong> acceptable limits.<br />
The compressed gases are diverted to the recondenser.<br />
Re-condenser and <strong>LNG</strong> buffer tank<br />
In order to enhance the flexibility of the term<strong>in</strong>al<br />
output, a recondenser with buffer tank is<br />
<strong>in</strong>stalled. The recondenser converts the compressed<br />
boil-off gas to <strong>LNG</strong>. The <strong>LNG</strong> is delivered<br />
to the ref<strong>in</strong>ery gas system or to trailers. The<br />
buffer tank <strong>in</strong>creases the amount of converted<br />
BOG s<strong>in</strong>ce <strong>LNG</strong> can be stored at occasions with<br />
low consumption, e.g. between trailer fill<strong>in</strong>g<br />
when the ref<strong>in</strong>ery is down.