Impact of residual stress on integrity of the vessel for methanol storing

Abstract

The purpose of this paper is to present impact of the improper choice of the procedure for repairing of pressure vessel for methanol storage, which finally could leads even to its failure. Represented information are based on the results of inspection activities from one oil & gas plant. Anyhow, these kind of problems can appear in industry units which treating or using methanol for different purposes, especially in cases when residual stresses are enough significant to cause damage mechanisms and creation of cracks in pressure vessels or pipelines.