High Temperature Scrapped Surface Heat Exchanger

[JoeChem]

Greetings,

In the middle of a front end design for a high temperature (230-250 C) process (CSTR) that involves reacting fatty acids. Need to transfer lots of heat as the reaction is endothermic. The mixture is also viscous so considering using a pump around with a scrapped surface heat exchanger to enhance heat transfer. The only experience I have with these heat exchangers has been with low temperature applications. Does anyone have any experience with and/or vendor recommendations for high temperature (270-300 C design) units? I have looked around to some extent but was hoping to get some helpful information ahead of time.

Thanks in advance,

JoeChem

 

[moltenmetal]

You mean "scraped surface". Look for people who make wiped film evaporators. People like Lewa and Rototherm come to mind.

 

[unclesyd]

side from the post above by moltenmetal two others that I'm acquainted with are by Delaval and Rototherm. There were a couple of Delaval's in the pilot pant and the Rototherm one was used in recovering a by product.

At time we operated a pilot process using both single and twin screw extruders. The link is the one to give you information and not the one we used. there is also a single screw reactor that I can't recall the name.

Make sure you run some corrosion test to determine you MOC. Work I've done with fatty acids at high temperature MOC was a big concern.

http://www.artisanind.com/ps/docs/rototherm.pdf

http://www.clextral.com/en/plastic-et-chemical/advantages-of-clextral-twin-screw-extrusion-200.html