Propane is a three-carbon alkane with the molecular formula C3H8. It is a gas at standard temperature and pressure, but compressible to a transportable liquid. A by-product of natural gas processing and petroleum refining, it is often a constituent of liquefied petroleum gas (LPG), which is commonly used as a fuel in domestic and industrial applications and in low-emissions public transportation; other constituents of LPG may include propylene, butane, butylene, butadiene, and isobutylene. Discovered in 1857 by the French chemist Marcellin Berthelot, it became commercially available in the US by 1911. Propane has lower volumetric energy density than gasoline or coal, but has higher gravimetric energy density than them and burns more cleanly.
Trans World Airlines Flight 800 (TW800/TWA800) was a scheduled international passenger flight from New York to Rome, with a stopover in Paris. On July 17, 1996, at approximately 8:31 p.m. EDT, 12 minutes after takeoff, the Boeing 747-100 serving the flight exploded and crashed into the Atlantic Ocean near East Moriches, New York.
Liquefied petroleum gas, also referred to as liquid petroleum gas, is a fuel gas which contains a flammable mixture of hydrocarbon gases, specifically propane, n-butane and isobutane. It can sometimes contain some propylene, butylene, and isobutene.
A boiling liquid expanding vapor explosion is an explosion caused by the rupture of a vessel containing a pressurized liquid that is or has reached a temperature sufficiently higher than its boiling point at atmospheric pressure. Because the boiling point of a liquid rises with pressure, the contents of the pressurized vessel can remain a liquid as long as the vessel is intact. If the vessel's integrity is compromised, the loss of pressure drops the boiling point, which can cause the liquid to convert to gas expanding rapidly. BLEVEs are manifestations of explosive boiling.
The Weyauwega derailment was a railroad accident that occurred in Weyauwega, Wisconsin, United States, in the early morning hours of March 4, 1996. The derailed train was carrying a large quantity of hazardous material, which immediately caught fire. The fire, which involved the train cars and an adjacent feed mill, burned for more than two weeks after the actual derailment, resulting in the emergency evacuation of 2,300 people for 18 days, including the entire city of Weyauwega, with about 1,700 evacuees.
A gas explosion is the ignition of a mixture of air and flammable gas, typically from a gas leak. In household accidents, the principal explosive gases are those used for heating or cooking purposes such as natural gas, methane, propane, butane. In industrial explosions many other gases, like hydrogen, as well as evaporated (gaseous) gasoline or ethanol play an important role. Industrial gas explosions can be prevented with the use of intrinsic safety barriers to prevent ignition, or use of alternative energy.
The Texas City refinery explosion occurred on March 23, 2005, when a flammable hydrocarbon vapor cloud ignited and violently exploded at the isomerization process unit of the BP oil refinery in Texas City, Texas, killing 15 workers, injuring 180 others and severely damaging the refinery. All the fatalities were contractors working out of temporary buildings located close to the unit to support turnaround activities. Property loss was $200 million. When including settlements, costs of repairs, deferred production, and fines, the explosion is the world's costliest refinery accident.
On 25 September 1998 a catastrophic accident occurred at the Esso natural gas plant in Longford, Victoria, Australia. A pressure vessel ruptured resulting in a serious jet fire, which escalated to a conflagration extending to a large part of the plant. Fires lasted two days before they were finally extinguished.
The Waverly, Tennessee tank car explosion killed 16 people and injured 43 others on February 24, 1978, in Waverly, Tennessee. Following a train derailment a two days earlier, a cleanup crew had been sent into the area. At approximately 2:58 in the afternoon, a tank car containing 30,161 US gallons of liquefied petroleum gas (LPG) exploded after an action taken during the cleanup related to the derailment.
The Los Alfaques disaster was caused by the explosion of a road tanker near a holiday campsite on 11 July 1978 in Alcanar, Spain. The exploding truck, which was carrying 23 tons of highly flammable liquefied propylene, killed 215 people and severely burned 200 more. Several individuals from the company that owned the vehicle were prosecuted for criminal negligence. The disaster resulted in new legislation in Spain, restricting the transit of vehicles carrying dangerous cargo through populated areas to night time only.
Cosmo Oil Company, Limited is a Japanese petrochemical company. It is Japan's third-biggest refiner by sales after JX Holdings and Idemitsu Kosan.
The San Juanico disaster involved a series of fires and explosions at a liquefied petroleum gas (LPG) tank farm in the settlement of San Juan Ixhuatepec, a municipality of Tlalnepantla de Baz, State of Mexico, Mexico, on 19 November 1984. The facility and the settlement, part of Greater Mexico City, were devastated, with 500–600 victims killed, and 5000–7000 suffering severe burns. It is one of the deadliest industrial disasters in world history, and the deadliest industrial accident involving fires and/or explosions from hazardous materials in a process or storage plant since the Oppau explosion in 1921.
A boilover is an extremely hazardous phenomenon in which a layer of water under a pool fire starts boiling, which results in a significant increase in fire intensity accompanied by violent expulsion of burning fluid to the surrounding areas. Boilover can only occur if the liquid fluid is a mixture of different chemical species with sufficiently diverse boiling points, although a so-called thin-layerboilover – a far less hazardous phenomenon – can arise from any water-immiscible liquid fuel. Crude oil, kerosene and some diesel oils are examples of fuels giving rise to boilover.
The Viareggio derailment was the derailment and subsequent fire of a freight train carrying liquefied petroleum gas. It occurred on 29 June 2009 in a railway station in Viareggio, Lucca, a city in Central Italy's Tuscany region. Thirty-two people were killed and a further twenty-six were injured.
The Feyzin disaster occurred in a refinery near the town of Feyzin, 10 kilometres south of Lyon, France, on 4 January 1966. An LPG spill occurred when an operator was draining water from a 1,200m³ pressurised propane tank. The resultant cloud of propane vapour spread, until it was ignited by a car on an adjoining road. The pool of propane in the bund caused the storage tank to be engulfed in flames, which produced a Boiling Liquid Expanding Vapour Explosion (BLEVE) when the tank ruptured. This resulted in a fireball which killed and injured firemen and spectators. Flying missiles broke the legs of an adjacent sphere which later BLEVE'd. Three further spheres toppled due to the collapse of support legs which were not adequately fire protected. These vessels ruptured but did not explode. A number of petrol and crude oil tanks also caught fire. The conflagration took 48 hours to bring under control. This incident resulted in the deaths of 18 people, the injury of 81 and extensive damage to the site.
Milford Haven Refinery was an oil refinery situated on the Pembrokeshire coast in Wales, United Kingdom. The refinery began operating in 1973 under Amoco's ownership, but in its final years it was owned by Murco Petroleum. The closure of the refinery was announced in November 2014. The site was sold to Puma Energy in 2015 for use as a petroleum storage and distribution terminal.
On December 23, 1988, a tractor-trailer tanker truck hauling liquefied propane crashed on an exit ramp at the Interstate 40/Interstate 240 (I-40/I-240) interchange in downtown Memphis, Tennessee, US. The crash ruptured the tank; the leaking gas exploded, setting multiple vehicles and structures on fire. The explosion propelled the tank 125 yards (114 m) into a residential complex and started additional fires. The accident caused nine deaths and ten injuries. The interchange where the accident occurred was considered unsafe and poorly designed, and had been the site of several previous accidents; it was completely rebuilt in the 2000s.
The Chala LPG tanker disaster was a road transport accident that occurred on August 27, 2012, on Indian National Highway 17 at Chala in the Kannur District of India's Kerala State. The accident occurred when an Indian Oil Corporation Limited (IOCL) LPG road tanker hit a road lane divider, overturned and exploded, starting several building fires between 9:30 p.m. and 11 p.m. The accident killed 20 people.
On 6 August 2018, the collision of a liquefied petroleum gas (LPG) road tanker with an articulated lorry carrying flammable solvents and a car transporter resulted in a huge explosion on the A14 motorway within Borgo Panigale, a neighbourhood of Bologna, Italy. It was a case of boiling-liquid expanding-vapour explosion (BLEVE), where nearly all the road tanker cargo combusted in a matter of seconds upon release, generating a tremendous amount of thermal radiation. The accident killed two people, injured 145 and caused significant damage to the surrounding commercial and residential area. One span of the viaduct where it happened collapsed and a gash opened in the motorway.
