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Preventing NaOH line from freezing

While I was clearing and updating my email, this is another interesting article that i read from the Cheresources newsletter.

Are there any guidelines for heat tracing a 50% NaOH line to prevent freezing?

Two very important things to keep in mind. First, be sure to place spacers between any heat tracing elements and the carbon steel pipe used for the NaOH. 50% NaOH will agressively attack carbon steel at higher temperatures (particularily any welds). Additionally, you really shouldn't use aluminum to cover the insulation on the line (a common material used for this purpose). Try stainless steel instead.

posted by Kipas Repair JB @ 1:06 AM,


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I’m Zaki. I used to be a project, process and chemical engineer. Few years ago I successfully became a Chartered Engineer (IChemE) and Professional Engineer (BEM). I'm now employed as a chemical engineering educator/researcher/consultant. Hope you like reading my blog. I welcome any feedback from you. My email: zaki.yz[alias]gmail.com. TQ!

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