We have a condenser in a DCB (dichlorobenzene) distillation tower. The MOC is carbon steel. After two months of running the plant, we are faced with corrosion. Can we use some other material? The temperature is 85° C.
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Brian Dalder Forum Moderator 177 Posts
Re: What material is suited for a dichlorobenzene distillation tower?6 December 2010 at 1:29pmI don't have any direct experience with dichlorobenzene, but a quick look at Schweitzer's Corrosion Resistance Tables is enlightening. Carbon steel is rated "good" with dichlorobenzene to only about 20 °C. 316L stainless steel is rated "good" up to 44 °C, and Hastelloy C-276 is rated "excellent" up to 165 °C. Based on this limited information it would seem that Alloy C-276 might be a good MOC for your application. C-276 is a nickel, chromium, molybdenum alloy, has exceptional corrosion resistance to many process materials, and is available from multiple suppliers.