K. R. Ferguson Chevron U.S.A. Inc. Midland, Tex. A. G. Stutheit Chevron U.S.A. Inc. Lafayette, La. Chevron U.S.A. Inc. has used a unique in situ weld-overlay procedure to repair large process vessels in a hot potassium carbonate CO2 treating plant. The plant is located on the Sacroc unit near Snyder, Tex. Planning and preparation for the unique application of the process have been the subjects of two earlier articles (OGJ, Dec. 2, 1991, p. 54; Jan. 6, p. 69). This final one details the project's procedures and execution. VESSEL PREPARATION With all instrumentation removed from the absorber vess...

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