【Chemical Processing】Issues related to the compression of liquefied hydrocarbon gases
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The last edit to this post was made by Xiao Gong 1985 on 2016-4-12 at 08:55. I have a question: don’t liquefied hydrocarbon gases liquefy again when compressed by a compressor beyond their saturation vapor pressure? And if liquefaction does occur and liquid is formed, won’t that have any impact on a reciprocating compressor?
Liquefied hydrocarbon gases liquefy when compressed by a compressor beyond their saturated vapor pressure. If liquefaction occurs and a liquid is produced, it can cause liquid slugging in reciprocating compressors, damaging the valves and cylinders.
However, when normal liquefied hydrocarbons are unloaded using a compressor, no liquefaction is observed at the compressor outlet; does raising the temperature due to compression prevent liquefaction from occurring?
The compressor used is a screw compressor, right? Screw compressors are durable.
No, it’s a reciprocating compressor used to pressurize the gas phase in the tank truck for unloading; after the liquid phase has been completely unloaded, the gas phase is drawn back into the storage tank. It must be due to the temperature; a relatively high temperature at the compressor outlet prevents liquefaction
Liquefied hydrocarbon gases liquefy when compressed by a compressor beyond their saturated vapor pressure. If liquefaction occurs and a liquid is produced, this can cause liquid slugging in reciprocating compressors, damaging the valves and cylinders