Erosion-corrosion of a stainless steel distillation column in food industry

✍ Scribed by Edoardo Proverbio; Lucio Maria Bonaccorsi

• Publisher: Elsevier Science
• Year: 2002
• Tongue: English
• Weight: 368 KB
• Volume: 9
• Category: Article
• ISSN: 1350-6307
• DOI: 10.1016/s1350-6307(02)00027-4

✦ Synopsis

Unusual extended corrosion phenomena were detected in a distillation column made in AISI type 316 stainless steel (UNS S31600) of a plant for natural pectins extraction from citrus. The column was the first of a series of two distillation columns representing the unit core. Corrosion problems were observed only in that column and mainly along the surface of the trays located in the lower section of the column. The phenomenon was observed subsequently to a modification of the original plant layout that caused an increase of the operating temperatures and turbulence of the process stream inside the column.