Metal corrosion in a supercritical carbon dioxide - liquid sodium power cycle.

A liquid sodium cooled fast reactor coupled to a supercritical carbon dioxide Brayton power cycle is a promising combination for the next generation nuclear power production process. For optimum efficiency, a microchannel heat exchanger, constructed by diffusion bonding, can be used for heat transfer from the liquid sodium reactor coolant to the supercritical carbon dioxide. In this work, we have reviewed the literature on corrosion of metals in liquid sodium and carbon dioxide. The main conclusions are (1) pure, dry CO{sub 2} is virtually inert but can be highly corrosive in the presence of even ppm concentrations of water, (2) carburization and decarburization are very significant mechanism for corrosion in liquid sodium especially at high temperature and the mechanism is not well understood, and (3) very little information could be located on corrosion of diffusion bonded metals. Significantly more research is needed in all of these areas.

[1]  Kazuhiko Kunitomi,et al.  Feasibility study on the applicability of a diffusion-welded compact intermediate heat exchanger to next-generation high temperature gas-cooled reactor , 1997 .

[2]  B. Peter McGrail,et al.  Spontaneous Activation of CO2 and Possible Corrosion Pathways on the Low-Index Iron Surface Fe(100) , 2009 .

[3]  Tomohiro Furukawa,et al.  Corrosion Behavior of FBR Structural Materials in High Temperature Supercritical Carbon Dioxide , 2010 .

[4]  D. Young,et al.  High Temperature Corrosion of Fe-Cr, Fe-Al, Fe-Si and Fe-Si-Al Alloys in CO2-H2O Gases , 2010 .

[5]  Pierre R. Roberge,et al.  Handbook of Corrosion Engineering , 1999 .

[6]  F. Tepper,et al.  EFFECT OF HIGH TEMPERATURE SODIUM ON AUSTENITIC AND FERRITIC STEELS. TOPICAL REPORT NO. 4. RESULTS OF MECHANICAL PROPERTIES TESTS OF 316 SS SPECIMENS IN 1200 F SODIUM CONTAMINATED WITH CARBON , 1965 .

[7]  S. Nomura,et al.  Carburization of Hastelloy alloy X , 1975 .

[8]  Yoon-Seok Choi,et al.  Effect of impurities on the corrosion behavior of CO2 transmission pipeline steel in supercritical CO2-water environments. , 2010, Environmental science & technology.

[9]  Y. Yoshizawa,et al.  Experimental investigation of reaction behavior between carbon dioxide and liquid sodium , 2011 .

[10]  Z. Cui,et al.  EIS study of the surface film on the surface of carbon steel from supercritical carbon dioxide corrosion , 2004 .

[11]  G. Moine,et al.  Corrosion Behavior Of Different Metallic Materials In Supercritical CO2At 550°C And 250 Bars , 2010 .

[12]  Julia Race,et al.  Transporting the Next Generation of CO2 for Carbon, Capture and Storage: The Impact of Impurities on Supercritical CO2 Pipelines , 2008 .

[13]  J. Eoh,et al.  Wastage and Self-Plugging by a Potential CO2 Ingress in a Supercritical CO2 Power Conversion System of an SFR , 2010 .

[14]  P. Natishan,et al.  Low-Temperature Carburization of the Ni-base Superalloy IN718: Improvements in Surface Hardness and Crevice Corrosion Resistance , 2010 .

[15]  Carol Polakowski,et al.  Volume 13A Corrosion: Fundamentals, Testing, and Protection , 2003 .

[16]  F. Ropital,et al.  Current and future corrosion challenges for a reliable and sustainable development of the chemical, refinery, and petrochemical industries , 2009 .

[17]  M. Kermani,et al.  Carbon Dioxide Corrosion in Oil and Gas Production—A Compendium , 2003 .

[18]  S. Sánchez,et al.  The influence of steel microstructure on CO2 corrosion. EIS studies on the inhibition efficiency of benzimidazole , 2003 .

[19]  Jonathan Paul Gibbs,et al.  Corrosion of various engineering alloys in supercritical carbon dioxide , 2010 .

[20]  R. Ainsley,et al.  The solubility of carbon in sodium , 1974 .