Menu
Search
Filters
Close
Menu

98414 CORROSION Mitigation IN SCWO SYSTEMS FOR HAZARDOUS WASTE DISPOSAL

Picture for 98414 CORROSION Mitigation IN SCWO
Available for download
Product Number: 51300-98414-SG
ISBN: 98414 1998 CP
Author: D.B. Mitton, S-H Zhang, M.S. Quintana, J.A. Cline, N. Caputy, P.A. Marrone, R. Latanision
$0.00
$20.00
$20.00
There is a need to destroy both mititary and civilian hazardous and an urgency, mandated by public concern over traditional waste handfing methodologies, to identify safe and efiicient attemative technologies, One very effective process is the destruction of such waste is supercritical water oxidation (SCWO). By capitalizing on the properties of water above its critical point (374°C and 221 atm for pure water), this technology provides rapid d complete oxidation with high destruction efficiencies at typical operating temperatures. Nevertheless, corrosion of the materials of fabrication is a serious concern. While nickel and nickel-based alloys are generally considered important for severe service applications, results from laboratory and pilot-scale SCWO systems presently in operation indicate that they will not withstand some aggressive feeds. Significant weight loss and localized effects, including stress corrosion cracking (SCC) and dealloying, are seen in chlorinated environments. Ultimately, the practicality of SCWO may be limited by the abiiity to mitigate or predict corrosion damage. This paper assesses the recurring failure of Alloy C-276 heater tubes that displayed cracking during SCWO experiments employing dilute methylene chloride feed solutions. An attempt has been made to correlate the failure mode to the results generated during a controlled experiment employing a nominally identical Alloy C-276 tube instrumented with thermocouples. The results reveal the importance of both shess and temperature and indicate a restricted temperature region within which corrosion is most severe. Keyword supercritical water oxidation, high temperature corrosion, Afloy C-276, dealloying, stress corrosion cracking, intergranular corrosion, intergranular stress corrosion cracking
There is a need to destroy both mititary and civilian hazardous and an urgency, mandated by public concern over traditional waste handfing methodologies, to identify safe and efiicient attemative technologies, One very effective process is the destruction of such waste is supercritical water oxidation (SCWO). By capitalizing on the properties of water above its critical point (374°C and 221 atm for pure water), this technology provides rapid d complete oxidation with high destruction efficiencies at typical operating temperatures. Nevertheless, corrosion of the materials of fabrication is a serious concern. While nickel and nickel-based alloys are generally considered important for severe service applications, results from laboratory and pilot-scale SCWO systems presently in operation indicate that they will not withstand some aggressive feeds. Significant weight loss and localized effects, including stress corrosion cracking (SCC) and dealloying, are seen in chlorinated environments. Ultimately, the practicality of SCWO may be limited by the abiiity to mitigate or predict corrosion damage. This paper assesses the recurring failure of Alloy C-276 heater tubes that displayed cracking during SCWO experiments employing dilute methylene chloride feed solutions. An attempt has been made to correlate the failure mode to the results generated during a controlled experiment employing a nominally identical Alloy C-276 tube instrumented with thermocouples. The results reveal the importance of both shess and temperature and indicate a restricted temperature region within which corrosion is most severe. Keyword supercritical water oxidation, high temperature corrosion, Afloy C-276, dealloying, stress corrosion cracking, intergranular corrosion, intergranular stress corrosion cracking
PRICE BREAKS - The more you buy, the more you save
Quantity
1+
5+
Price
$20.00
$20.00
Product tags
Also Purchased
Picture for 98415 CORROSION PHENOMENA OF ALLOY 625
Available for download

98415 CORROSION PHENOMENA OF ALLOY 625 IN AQUEOUS SOLUTIONS CONTAINING SULFURIC ACID AND OXYGEN UNDER SUBCRITICAL AND SUPERCRITICAL CONDITIONS

Product Number: 51300-98415-SG
ISBN: 98415 1998 CP
Author: P. Kritzer, N. Boukis, E. Dinjus
$20.00
Picture for 98416 CORROSION OF HIGH TEMPERATURE ALLOYS
Available for download

98416 CORROSION OF HIGH TEMPERATURE ALLOYS IN SUPERCRITICAL WATER OXIDATION SYSTEMS

Product Number: 51300-98416-SG
ISBN: 98416 1998 CP
Author: S. Fodi, J. Konys, J. Hausselt, H. Schmidt, V. Casal
$20.00
Picture for 98413 MATERIALS SELECTION IN HYDROTHERMAL
Available for download

98413 MATERIALS SELECTION IN HYDROTHERMAL OXIDATION PROCESSES

Product Number: 51300-98413-SG
ISBN: 98413 1998 CP
Author: Saadedine Tebbal, Russell D. Kane
$20.00
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support