liquefaction of petroleum gas (LPG) ??

[sarah]

Hi:confused:

I just wanted to know some possible methods of liquefaction of petroleum gas using mechanical, valve expansion and turbo expansion refrigeration. Are there any useful resources i can refer to??

[Grizzly]

Hi:confused:

I just wanted to know some possible methods of liquefaction of petroleum gas using mechanical, valve expansion and turbo expansion refrigeration. Are there any useful resources i can refer to??
Welcome to the forum Sarah.
Your questions are a bit out of my league, so I will leave it to others to answer your questions.
But it is nice to have a CHEMICAL ENGINEER on these pages.
I look forward to some enlightening posts from you.
By the way does plagerism apply to Avtar's anyone?
Grizzlyhttp://www.refrigeration-engineer.com/forums/images/icons/icon14.gif

[Brian_UK]

Hi Sarah, I think that your question is perhaps a little outside our league.

A quick look at Wikipedia made me think, oops, that's cold.
http://en.wikipedia.org/wiki/Liquefied_natural_gas

[US Iceman]

Well that is a subject I have not been involved in, but perhaps TXiceman can comment when he sees this thread.;)

[Sergei]

Hi Sarah, I think that your question is perhaps a little outside our league.

A quick look at Wikipedia made me think, oops, that's cold.
http://en.wikipedia.org/wiki/Liquefied_natural_gas
Hi Brian.
This is link to LNG. LPGs are propane, butane and etc. I have some experience with LPG plant. Mostly, LPG plant is similar to regular compression refrigeration plant. Compressors should be oil free to prevent cargo(LPG) contamination. To keep holding tank at low pressure, compressors suck vapors from the tank to condenser and liquid vapor mixture goes back into the tank. Propane requires 2 stage compression, butane requires 1 stage compression.

[Brian_UK]

Hi Brian.
This is link to LNG. LPGs are propane, butane and etc. ......................How right you are, sorry, please ignore posts from old fools. :D

[sarah]

Thanks everyone for your help :)

[TXiceman]

Sarah,

The one I have used is mechanical refrigeration . Complexity depends on what gases you wan to liquefy. Larger plants go into turbo-expansion systems and JT systems.


Ken

[kelvin_27_84]

Hmm why not try a cascade system, I am new to turbo-expansion systems. It just a suggestion, not sure whether it helps.