What is LPG?

LPG is "Liquid Petroleum Gas": the cooking gas used at home and known to us all. The use of which has expanded significantly thanks to its being a clean energy source that allows for maximum exploitation of energy.
LPG is a byproduct released during the refining of crude oil.  The uniqueness of LPG as an energy source is in its ability to burn with perfect efficiency which exploits all of the available material and doesn't release any polluting emissions into the atmosphere, the ground or water.  Its high energy efficiency attracts many customers from the industrial sector and on to private households who move to using LPG because it is an efficient and economical energy source.
In order to increase storage capabilities, Pazgas supplies its customers with LPG in a liquid form which, when released into the air, naturally changes its form to a gas which burns with a flame.  The gas company fills gas cylinders with gas weighing 12 kg. and 48 kg. or directly into central storage tanks (0.25 and up to 40 ton).  When in its gaseous state, LPG is colorless and odorless, heavier than the surrounding air and sinks in low areas.  In order to identify gas leaks, a substance from the sulfur family is added to the gas which gives it its characteristic odor.
How does LPG change from liquid to gas?
The LPG is stored in cylinders or storage tanks with most of it being in a liquid state and an upper strata being gaseous.  In order to vaporize (change from liquid to gas) the LPG takes heat from the surrounding environment and naturally reverts to a gaseous state.  In those instances where natural vaporization isn't enough to supply the required quantity of gas, a vaporizer that isn't dependent on the surrounding temperature and whose operation ensures that the composition  of the gas will remain constant and not contingent on the level of gas in the container is added to the procedure.
A number of vaporization systems are used at our customer's installations:
  • Electrically heated vaporizers using an immersed heating element.
  • Water vaporizers which work by passing hot water through a closed system to the vaporizers which then transfer heat to the LPG.  The heat allows the LPG to revert from liquid to gas.