Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/1984_Romeoville_petroleum_refinery_disaster> ?p ?o }
Showing triples 1 to 42 of
42
with 100 triples per page.
- 1984_Romeoville_petroleum_refinery_disaster abstract "On July 23, 1984, an explosion followed by a fire took place at a Union Oil petroleum refinery in Romeoville, Illinois, outside Chicago, killing 17 people and causing major property damage. This vessel was an amine absorber tower used to strip hydrogen sulfide from a process stream of propane and butane. The vessel was 18.8 metres (62 ft) tall, 2.6 metres (8.5 ft) in diameter, and made from 25 millimetres (0.98 in) thick plates of type ASTM A516 Grade 70 steel.The explosive force had been able to propel the upper 14 metres (46 ft) of the vessel a distance of 1 kilometre (0.62 mi) from its original location, while the base remained at the center of the fire that followed after the explosion.Testing of the vessel segments began with non-destructive testing methods.i) Magnetic particle inspection revealed large number of cracks confined mainly to the inner surfaces along the welds between Courses 1 and 2 of the vessel and between Courses 2 and 3.ii) Ultrasonic measurements then detected clear indications of separation of laminate to layers confined to Course 1.iii) Thickness measurements, made with a micrometer, showed that Courses 1 and 2 had wall thickness well within the allowances for pressure vessels.So these tests showed that all initial and replacement components satisfied the industry standard specifications. The cause of failure did not become clear until metallographic results were combined with stress corrosion cracking and hydrogen embrittlement tests, followed by a fracture mechanics analysis. It appeared that an already existing crack had extended through more than 90% of the wall thickness and was about 800 mm in length. Further, it was determined that hydrogen embrittlement had reduced the fracture resistance of the steel by more than half. The vessel had been put into service in 1970 and had undergone several repairs and modifications before the July 1984 incident. The vessel was fractured along a path that was weakened by extensive cracking adjacent to a repair weld joining a replacement section to the original vessel. These pre-existing cracks initiated in areas of hard microstructure known to be susceptible to hydrogen stress cracking. This hard microstructure formed during the repair welding of the replacement section. The cracks grew through the vessel wall as a result of hydrogen pressure cracking. When the depth of the largest of these pre-existing cracks exceeded 90% to 95% of the wall thickness, the remaining thin ligament of steel in the cracked section ruptured and leakage occurred. This crack caused a complete fracture of the vessel circumference at the operating stress level of only 35 MPa (roughly 10% of the rated strength of the steel) because the toughness of the vessel steel had been reduced by hydrogen embrittlement.".
- 1984_Romeoville_petroleum_refinery_disaster wikiPageID "39082077".
- 1984_Romeoville_petroleum_refinery_disaster wikiPageLength "3840".
- 1984_Romeoville_petroleum_refinery_disaster wikiPageOutDegree "17".
- 1984_Romeoville_petroleum_refinery_disaster wikiPageRevisionID "627751875".
- 1984_Romeoville_petroleum_refinery_disaster wikiPageWikiLink ASTM_International.
- 1984_Romeoville_petroleum_refinery_disaster wikiPageWikiLink Category:1984_in_Illinois.
- 1984_Romeoville_petroleum_refinery_disaster wikiPageWikiLink Category:1984_industrial_disasters.
- 1984_Romeoville_petroleum_refinery_disaster wikiPageWikiLink Category:Accidental_explosion_disasters_in_the_United_States.
- 1984_Romeoville_petroleum_refinery_disaster wikiPageWikiLink Category:Gas_explosions_in_the_United_States.
- 1984_Romeoville_petroleum_refinery_disaster wikiPageWikiLink Chicago.
- 1984_Romeoville_petroleum_refinery_disaster wikiPageWikiLink Fracture_mechanics.
- 1984_Romeoville_petroleum_refinery_disaster wikiPageWikiLink Hydrogen_embrittlement.
- 1984_Romeoville_petroleum_refinery_disaster wikiPageWikiLink Hydrogen_sulfide.
- 1984_Romeoville_petroleum_refinery_disaster wikiPageWikiLink Magnetic_particle_inspection.
- 1984_Romeoville_petroleum_refinery_disaster wikiPageWikiLink Micrometer.
- 1984_Romeoville_petroleum_refinery_disaster wikiPageWikiLink Microstructure.
- 1984_Romeoville_petroleum_refinery_disaster wikiPageWikiLink Romeoville,_Illinois.
- 1984_Romeoville_petroleum_refinery_disaster wikiPageWikiLink Stress_corrosion_cracking.
- 1984_Romeoville_petroleum_refinery_disaster wikiPageWikiLink Ultrasonic_thickness_measurement.
- 1984_Romeoville_petroleum_refinery_disaster wikiPageWikiLink Unocal_Corporation.
- 1984_Romeoville_petroleum_refinery_disaster wikiPageWikiLinkText "1984 Romeoville petroleum refinery disaster".
- 1984_Romeoville_petroleum_refinery_disaster wikiPageWikiLinkText "Union Oil refinery explosion".
- 1984_Romeoville_petroleum_refinery_disaster wikiPageUsesTemplate Template:Convert.
- 1984_Romeoville_petroleum_refinery_disaster wikiPageUsesTemplate Template:Coord_missing.
- 1984_Romeoville_petroleum_refinery_disaster wikiPageUsesTemplate Template:More_footnotes.
- 1984_Romeoville_petroleum_refinery_disaster wikiPageUsesTemplate Template:Multiple_issues.
- 1984_Romeoville_petroleum_refinery_disaster wikiPageUsesTemplate Template:Orphan.
- 1984_Romeoville_petroleum_refinery_disaster wikiPageUsesTemplate Template:Refimprove.
- 1984_Romeoville_petroleum_refinery_disaster wikiPageUsesTemplate Template:Reflist.
- 1984_Romeoville_petroleum_refinery_disaster wikiPageUsesTemplate Template:Technical.
- 1984_Romeoville_petroleum_refinery_disaster subject Category:1984_in_Illinois.
- 1984_Romeoville_petroleum_refinery_disaster subject Category:1984_industrial_disasters.
- 1984_Romeoville_petroleum_refinery_disaster subject Category:Accidental_explosion_disasters_in_the_United_States.
- 1984_Romeoville_petroleum_refinery_disaster subject Category:Gas_explosions_in_the_United_States.
- 1984_Romeoville_petroleum_refinery_disaster comment "On July 23, 1984, an explosion followed by a fire took place at a Union Oil petroleum refinery in Romeoville, Illinois, outside Chicago, killing 17 people and causing major property damage. This vessel was an amine absorber tower used to strip hydrogen sulfide from a process stream of propane and butane.".
- 1984_Romeoville_petroleum_refinery_disaster label "1984 Romeoville petroleum refinery disaster".
- 1984_Romeoville_petroleum_refinery_disaster sameAs Q16258054.
- 1984_Romeoville_petroleum_refinery_disaster sameAs m.0swk_c5.
- 1984_Romeoville_petroleum_refinery_disaster sameAs Q16258054.
- 1984_Romeoville_petroleum_refinery_disaster wasDerivedFrom 1984_Romeoville_petroleum_refinery_disaster?oldid=627751875.
- 1984_Romeoville_petroleum_refinery_disaster isPrimaryTopicOf 1984_Romeoville_petroleum_refinery_disaster.