What is the advantage of storing propane and butane as a pressurised/refrigerated liquid? - the advantages of butane
Fuel in a fractionating LPG unit stored ...
Thank you:)
Tuesday, February 16, 2010
The Advantages Of Butane What Is The Advantage Of Storing Propane And Butane As A Pressurised/refrigerated Liquid?
6 comments:
One advantage is the easy storage, because the liquids with high density compared to natural gas.
Ok, because the GPL is made of 100% propane, 10 kg composed of propane, are more than 5 cubic meters (5000 liters taking) volume, propane has a molecular weight of 44, using PV = nRT
The other advantage I can think is because it is under pressure, require no pump, compressor or blower, etc. Pass is flowing high pressure at low pressure with ease.
It is also easy to adjust the pressure.
The products are hydrocracking debutanizer or liquids. Usually less expensive to store them on their vapor pressure in liquid form, rather than a liquid cooling system operating at low pressure. Of course, this requires a cooling and energy for the operation of the system, or compression system similar to a liquefied natural gas (see below)
To save in vapor form is not only practical, it would be necessary because of the large amount of storage.
Only the LNG is stored at atmospheric pressure in the environment, then a compression is needed to condense the steam from the boiling vat of LNG storage and they can condense and return the reservoir. In this way, the steam of boiling LNG stays cold, so most remain LNGALIDATION.
Drop in pressure in the vessel itself as the refrigerant gas and can be in a container of adequate size in relation to a gas-put (the only way the mass inside the container increase is to grow, the more expensive container resources)
The fluid is much denser. You need a lot more important when one tries to storage tanks of gas.
You can get more, in a small container in liquid form.
In the case of temperature and atmospheric pressure, vaporized LPG. It is therefore possible LPG in cylinders under pressure. To enable the thermal expansion of the liquid, these bottles are not completely satisfied, are usually filled with between 80% and 85% of its capacity. The relationship between the volume of vaporized gas and liquefied petroleum gas, depends on the composition, pressure and temperature, but is typically about 250:1. The pressure at which it is liquid petroleum gas, LPG, called its vapor pressure also varies depending on the composition and temperature, for example, is approximately 220 kPa (2.2 bar) for pure butane, 20 ° C (68 ° F) and about 2.2 MPa (22 bar) for pure propane at 55 ° C (131 ° F). LPG is heavier than air and thereforeflows over the ground and tend to settle in low areas such as the basement. This can cause ignition or suffocation if left untreated.
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