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Ethylene

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Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001771
EISBN: 978-1-62708-241-9
... Abstract Radiant tubes that failed prematurely in an ethylene cracking furnace were analyzed to determine the cause of their early demise. The tubes were made from austenitic heat-resistant steel and cracked along their longitudinal axis. New and used tubes were compared using scanning electron...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001339
EISBN: 978-1-62708-215-0
... Abstract The failure mode of through-wall cracking of a butt weld in a 5083-O aluminum alloy piping system in an ethylene plant was identified as mercury liquid metal embrittlement. As a result of this finding, 226 of the more than 400 butt welds in the system were ultrasonically inspected for...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001318
EISBN: 978-1-62708-215-0
... accumulated in the manifold. Apparently, mercury manometers had previously been used in the system and had contaminated the manifold. The rupture discs failed prematurely due to mercury embrittlement. The hydrogen/ethylene gas blend had been contaminated with mercury from the gas-blending manifold. It was...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c0090442
EISBN: 978-1-62708-218-1
... a thermoplastic polyester, such as PBT or poly(ethylene terephthalate) (PET). Different types of polyester resins cannot be distinguished spectrally, because of the similar nature of their structures. However, subtle but distinct differences were apparent in the results, suggestive of degradation of...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001638
EISBN: 978-1-62708-228-0
... an ethane-cracking furnace developed a leak during decoking of the furnace tubes. The purpose of the furnace is to heat saturate hydrocarbons such as ethane (C 2 H 6 ), propane (C 3 H 8 ), and butane (C 4 H 12 ) to the point where they crack and recombine to form predominantly unsaturated ethylene (C...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001486
EISBN: 978-1-62708-234-1
... significantly at 80°C. Raising the temperature of the cooling water is stated to be effective where anti-freeze additions based on ethylene glycol are employed. Attempts have been made to reduce or prevent cavitation damage by the application of cathodic protection, and this has been found to be effective in...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003554
EISBN: 978-1-62708-180-1
... Society of Mechanical Engineers , 1994 , p 329 6. McIntyre D.R. , English J.J. , and Kobrin G. , “Mercury Attack of Ethylene Plant Alloys,” Paper 106, presented at Corrosion/89, National Association of Corrosion Engineers , 1989 7. English J.J. and Duquette D.J...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006786
EISBN: 978-1-62708-295-2
... , 1994 , p 329 , 332 7. McIntyre D.R. , English J.J. , and Kobrin G. , “ Mercury Attack of Ethylene Plant Alloys ,” Paper 106, presented at Corrosion/89, National Association of Corrosion Engineers , 1989 8. English J.J. and Duquette D.J. , Mercury Liquid...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003525
EISBN: 978-1-62708-180-1
... polymer is illustrated in examples 1 , 4 , 7 , and 9 in this article. One area where FTIR is inadequate is in differentiating between polymers having similar molecular structures, such as the members of the nylon family, and poly(ethylene terephthalate) and poly(butylene terephthalate). In these...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001812
EISBN: 978-1-62708-241-9
.... , Oldfield J.W. : Environmental attack of ethylene plant alloys by mercury . In: Proc. Conf. “Corrosion Prevention in the Process Industries….What European Industry is Doing” , pp. 239 – 252 . NACE , Amsterdam, The Netherlands ( 1989 ) 12. Speidel M.O. : Current understanding of stress...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003534
EISBN: 978-1-62708-180-1
... (C-C or C-H) where C is bound only to other C or H. In PET, this peak is associated with the nonoxidized carbons in the aromatic ring. At about 286.3 eV, a C-O peak is observed that is characteristic of the ethylene carbons in PET that are singly bound to oxygen. Located at 288.7 eV is a peak...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006771
EISBN: 978-1-62708-295-2
.... At approximately 286.3 eV, a C–O peak is observed that is characteristic of the ethylene carbons in PET that are singly bound to oxygen. Located at 288.7 eV is a peak associated with the carboxylate carbons (ester O=C–O) that are bound to two oxygens. A small satellite peak is also observed at...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006782
EISBN: 978-1-62708-295-2
... wrap and segments of the failed hose were examined to determine the reason for the hose failure. An FTIR analysis revealed that the hose material was PTFE, as intended, with no evidence of chemical degradation. The FTIR analysis revealed that the outer wrap was ethylene vinyl acetate (EVA) copolymer...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003555
EISBN: 978-1-62708-180-1
... its susceptibility to nitridation attack. Titanium and aluminum are also detrimental to nitridation attack ( Ref 18 ). This type of high-temperature interaction can be found in centrifugally cast furnace tubes of alloys HK-40 (26Cr-20Ni) and HL-40 (30Cr-20Ni) used extensively in ethylene-pyrolysis...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003532
EISBN: 978-1-62708-180-1
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006765
EISBN: 978-1-62708-295-2
..., cerium oxide, chromium oxide, magnesium oxide, or iron oxide may be used, although these are used infrequently. Except for diamond, these abrasives are normally suspended in distilled water, but if the metal to be polished is not compatible with water, other suspensions, such as ethylene glycol, alcohol...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006787
EISBN: 978-1-62708-295-2
...-20Ni) alloys used for many years in ethylene-pyrolysis furnaces. In service, thick deposits of carbon or coke form on the interior tube walls, and it is necessary to burn these deposits away periodically by means of steam-air decoking. Examination of failed furnace tubes has established an interaction...