Commercial Propane

What is propane?

Product description: Propane, a three-carbon alkane, has a chemical formula of C3H8 and a simplified structural formula of CH3CH2CH3. Usually gaseous, but usually compressed into a liquid and shipped. After processing crude oil or natural gas, propane can be obtained from refined oil. In sales, propane is generally called liquefied petroleum gas, which is often mixed with propylene, butane and butene. The foul-smelling ethanethiol is also commonly added to commercial LPG to detect accidental releases. Propane is commonly used as a fuel for barbecues, portable stoves and motor vehicles. Retail LPG tankane is commonly used to power trains, buses, forklifts and taxis, and is also used as a fuel for heating and cooking in recreational vehicles and camping. In some rural areas of North America, propane is used to fill heat-generating appliances such as stoves, water heaters and cell phone dryers. As of 2000, 6.9 million U.S. households used propane as their primary fuel. Commercial "propane" fuel, or liquefied petroleum gas, is impure. In the United States and Canada, its main composition is 90% propane plus up to 5% butane and propylene plus odorants. This is the domestic standard in the United States and Canada, usually written as the HD-5 standard. It is important to note that LPG produced from methane (natural gas) does not contain propylene, only propane obtained from the refining process of crude oil. Similarly, in some other countries, such as Mexico, the standard content of butane will be relatively high.

The main application:

1. Feedstock for steam cracking to prepare basic petrochemical products.

2. As fuel or pressurized gas in some flamethrowers.

3. Raw material for the production of propanol.

4. The main fuel of the hot air balloon.

5. It is used to precipitate corundum in the semiconductor industry

6. Propane mixed with silicon is used as a propellant for an air gun (marketed as green gas) used in survival games. In some theme parks and movie shoots, liquid propane is used as a cheap and high-energy substance to create explosions or some other visual effect.

7. Propane mainly exists in oil field gas, natural gas and refinery gas. For the production of ethylene, propylene, oxygenates and primary nitroalkanes. There are opportunities to contact during production or use.

8. Used as refrigerant.

Propane - Properties

Propane is a colorless, flammable, nontoxic gas at room temperature and pressure, with an odor of natural gas. At 20°C and O. lMPa, the relative density of the gas (air-1) is 1-55. Boiling point - 42.1°C. The flammability limit in air is 2.2%~9.5% (volume). Point -183°C (0.1MPa). Triple point - 187.7°C. Gas density 1. 868kg/m3 (20 ℃, 0.lMPa). 5kg/m3。 At 20 ℃ and saturated pressure liquid density 500. 5kg/m3. The critical temperature is 96.8°C, the critical pressure is 4266kPa, and the critical density is 225kg/m3. In water solubility 6. 5cm3 /0. lkg water. At 26.8°C and 0.1MPa, specific heat capacity of gas: C. 74. OIJ/(mol.K), CV64.81J/(mol.K) Cp/C, l- 142. The specific heat capacity of liquid at 25°C is 111.13J/(mol.K). At 25°C and 0.1MPa, the gas thermal conductivity is 0.01674W/ (m.K). - The thermal conductivity of the liquid at 40°C is 0.1485W/(m.K). The autoignition temperature is 468°C. Leisure point - 104.O ℃. Shipped as liquefied compressed gas under its own vapor pressure in low-pressure cylinders

Propane - Hair

Use liquefied petroleum gas as raw material, condense at 0-5°C, remove some high-boiling point impurities, then enter the adsorber, and successively remove water, propylene, ethylene, ethane, n-butane, isobutane, Hydrocarbon impurities such as n-butene and isobutene enter the condenser to condense propane into liquid and separate it from non-condensable gases such as nitrogen and oxygen. Propane extraction rate can reach more than 80%.

Propane - Uses

High-purity propane is widely used as standard gas, calibration gas, on-line instrument standard gas, and preparation of certain special gas mixtures in chemical industry, metallurgy, electronics, petroleum and other industrial sectors and basic research, air pollution monitoring, aviation, atomic energy and other fields.

Propane - Safety

Propane is an anesthetic gas that is mildly numbing and stimulating when inhaled. People only have mild dizziness at 10% concentration, no irritation symptoms, and no effect at 1% concentration. Inhalation of a mixture of propane and butane at a higher concentration can cause dizziness, headache, excitement or drowsiness, nausea, vomiting, salivation, mild drop in blood pressure, slow pulse, weakened nerve reflex, and in severe cases, anesthesia and loss of consciousness. Propane should not be stored with cylinders containing oxygen, chlorine, other oxidizers, or combustibles.

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