Authors: Ul-Hamid, Anwar; Tawancy, Hani M.

Source: Materials at High Temperatures, Volume 25, Number 2, July 2008 , pp. 89-99(11)

Publisher: Science Reviews 2000 Ltd

Abstract:

Tubes of a furnace where ethylene dichloride (EDC) was cracked into vinyl chloride monomer (VCM) in a petrochemical industry, lost their structural integrity and developed cracks after about five years of operation. Various sections of a failed furnace tube were metallurgically evaluated using scanning electron microscopy combined with energy dispersive X-ray spectroscopy and X-ray diffraction. The material of the furnace tube was 347H stainless steel. Experimental results indicated that the failure of the furnace tubes was caused by high-temperature corrosion due to a chlorine contaminated environment which greatly accelerated oxidation attack. It was recommended that alloys, such as the higher grade Fe-base alloys, should be used that are more resistant to a chlorine-contaminated environment.

Keywords: CORROSION; INDUSTRIAL FURNACE TUBES; CHLORINE CONTAMINATION

Document Type: Research article

DOI: http://dx.doi.org/10.3184/096034008X335252

Publication date: 2008-07-01

More about this publication?

• Materials at High Temperatures serves the needs of those who develop and use materials for high temperature applications. It publishes peer reviewed contributions relating to high temperature applications in the power, chemical, engine, processing and furnace industries.

  The effects of high temperatures on corrosion, fatigue, creep, strength and wear in alloys, intermetallics, ceramics, refractories and composites are covered. Papers dealing with aspects of materials usage including modelling of behaviour and life prediction will be particularly welcome. The journal has a policy of emphasizing practical aspects and authors presenting results from research programmes are encouraged to relate these, if possible, to actual or potential applications.

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