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Title: Elastomer-induced crevice corrosion and stress corrosion cracking of stainless steel heat exchanger plates in sour amine service

Abstract

Types S31600 and S31254 stainless steel heat exchanger plates have suffered crevice corrosion and stress corrosion cracking under gaskets in rich amine service in a sour gas plant. The gasket material, ethylene-propylene-diene monomer (EPDM), has been used successfully for many years at other sour gas plants. Laboratory testing has duplicated the corrosion observed and shown that the mechanism is synergistic sulfide-halide attack. The use of a bromine plus chlorine-activated curing system for the EPDM rubber gaskets provided the necessary halides. Laboratory testing identified some nickel-based superalloys which were resistant to this corrosion and also demonstrated that essentially halogen-free, peroxide-cured EPDM gaskets do not cause attack of S31600 or S31254. The heat exchanger packs were replaced with S31600 plates and peroxide-cured EPDM gaskets having a specified total halogen concentration of 200 ppm maximum. Field operating experience has been excellent.

Authors:
;  [1];  [2]
  1. Shell Canada Ltd., Calgary, Alberta (Canada)
  2. Shell Canada Ltd., Caroline, Alberta (Canada)
Publication Date:
OSTI Identifier:
268256
Report Number(s):
CONF-960389-
TRN: IM9634%%328
Resource Type:
Book
Resource Relation:
Conference: National Association of Corrosion Engineers (NACE) annual corrosion conference and exposition: water and waste water industries, Denver, CO (United States), 24-29 Mar 1996; Other Information: PBD: 1996; Related Information: Is Part Of Corrosion/96 conference papers; PB: [6615] p.
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 03 NATURAL GAS; NATURAL GAS PROCESSING PLANTS; HEAT EXCHANGERS; CREVICE CORROSION; STRESS CORROSION; CRACK PROPAGATION; STAINLESS STEEL-316; STAINLESS STEELS; ELASTOMERS; CORROSIVE EFFECTS; CURING; ALBERTA; FAILURE MODE ANALYSIS; RECOMMENDATIONS; CORROSION RESISTANT ALLOYS; EXPERIMENTAL DATA

Citation Formats

Hay, M.G., Baron, J.J., and Moffat, T.A. Elastomer-induced crevice corrosion and stress corrosion cracking of stainless steel heat exchanger plates in sour amine service. United States: N. p., 1996. Web.
Hay, M.G., Baron, J.J., & Moffat, T.A. Elastomer-induced crevice corrosion and stress corrosion cracking of stainless steel heat exchanger plates in sour amine service. United States.
Hay, M.G., Baron, J.J., and Moffat, T.A. Thu . "Elastomer-induced crevice corrosion and stress corrosion cracking of stainless steel heat exchanger plates in sour amine service". United States. doi:.
@article{osti_268256,
title = {Elastomer-induced crevice corrosion and stress corrosion cracking of stainless steel heat exchanger plates in sour amine service},
author = {Hay, M.G. and Baron, J.J. and Moffat, T.A.},
abstractNote = {Types S31600 and S31254 stainless steel heat exchanger plates have suffered crevice corrosion and stress corrosion cracking under gaskets in rich amine service in a sour gas plant. The gasket material, ethylene-propylene-diene monomer (EPDM), has been used successfully for many years at other sour gas plants. Laboratory testing has duplicated the corrosion observed and shown that the mechanism is synergistic sulfide-halide attack. The use of a bromine plus chlorine-activated curing system for the EPDM rubber gaskets provided the necessary halides. Laboratory testing identified some nickel-based superalloys which were resistant to this corrosion and also demonstrated that essentially halogen-free, peroxide-cured EPDM gaskets do not cause attack of S31600 or S31254. The heat exchanger packs were replaced with S31600 plates and peroxide-cured EPDM gaskets having a specified total halogen concentration of 200 ppm maximum. Field operating experience has been excellent.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Aug 01 00:00:00 EDT 1996},
month = {Thu Aug 01 00:00:00 EDT 1996}
}

Book:
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