The main differences between the two energies lie in their liquefied temperatures; their transition from the gaseous state to the liquid state. While propane liquefies at 44º below zero, butane liquefies at 0º.

Thus, environmental conditions influence the storage of each product. Propane is ideal for cold areas or outdoor facilities, and butane, for indoor installations or warmer areas.

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Propane is a hydrocarbon, composed of hydrogen and carbon, extracted from oil in refining operations or from natural gas and associated gases, in oil fields.

In its natural state, propane gas is gaseous, but liquefies when exposed to room temperatures and under low pressure, reducing its volume up to 250 times, making it possible to handle, store and transport.

Propane gas, in its gaseous state, weighs twice as much as air; and in liquid state, half that of water. It is an energy source that has a higher calorific power and can reach a flame temperature of about 1,900ºC in air and 2,800ºC in oxygen.

For combustion to be optimal, propane must always remain in its gaseous state. As it liquefies starting at 44º below zero, it is ideal for outdoor installations and in cold areas, where it never liquefies.

Because propane gas is odorless and colorless in its natural state, as a security measure sulfur derivatives are added to it to detect possible leaks, due to its characteristic odor.

Another important characteristic of propane is that it is not toxic, it burns clean. It does not produce smoke or soot in combustion and it thereby preserves the environment.

Propane and butane gas are heavier than air, so cylinders, both full and empty, should always be in an upright position.

The bottle change must always be done with the head valve closed, so that the amount of gas released into the atmosphere - harmless and inoffensive - is minimal.

The bottle change operation should never be performed near sources of heat or fire, such as lighters, cigarettes or stoves.

The amount of gas is the same as in a conventional cylinder, it is the bottle that weighs half.

Cepsa's bottled gas containers are lighter than the traditional ones, and their prices may vary depending on the distribution area or service station where they are purchased. For more information on pricing, contact your  nearest distributor or request information here.

Liquefied petroleum gases or LPG are classified into two types known by all, butane and propane. These are obtained in the first step of the oil refining process and can also be found as part of natural gas.

Cepsa distinguishes the following groups among the multiple and various applications for propane gas in various industries:

Home: Kitchen, hot water, heating, air conditioning and gas appliances.

A single tank can simultaneously power several gas appliances for different uses such as ceramic hobs, washing machines, refrigerators, dryers, dishwashers, etc.

Industry: Brick kilns, cheese factories, ceramics, precooked foods, chemical industry, packaging of wine, foundries, cookie factories, fish farms, bread factories, paper mills, textile, cold sanitary, canning factories, sausage factories, recycling batteries, automotive gas, candy and pastry factories.

Services: Restaurants, hotels, hospitals, spas, universities, schools, town halls, sports centers, campgrounds, convents, institutes, barracks, nursing homes, day care centers and incinerators.

Agricultural sector: Poultry farms, pig farms, cotton ginneries, pepper dryers, tobacco dryers and greenhouses.

Automotive: Public transport and forklift trucks.

Liquefied petroleum gases (LPG) are bottled in storage containers adapted to the needs of the domestic, artisanal, industrial or agricultural sector.

Liquefied Petroleum Gases can be supplied in bulk or bottled.

In bulk and piped: Tankers load the product at the refinery or storage plants. By means of a pre-established route and depending on the orders requested, the gas containers of the customers are filled.

Bottled, with various sizes of packaging or bottles. The bottles are filled with gas in bottling plants. According to the client's order, the bottles are replaced as they are consumed.

You can get them through our website, from the Cepsa application, or at Cepsa Service Stations.