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With the ceramic coating, would I be able to get its internal temperature raise upto 520. I would like to get a reactor fabricated for plastic pyrolysis. The temperature would maintained around 520C. The material processed would be Waste Polypropylene and Polyethylene.

Pressure would be slightly less than atmospheric pressure outside the vessel.

The conditions inside the vessel will be mildly acidic.

There are quite a number of alloys which seems good. (SS316, SS314)

How would ceramic coating inside the shell affect heat transfer?

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closed as too broad by Mithoron, pentavalentcarbon, airhuff, Geoff Hutchison, bon Feb 6 '18 at 23:12

Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

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I think you want a "cold shell" design. Plain old carbon steel shell ( eg. A 516 ) with a refractory lining. The shell won't be hot , maybe 200 C. You may need both erosion resistant refractory and insulating refractory.

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    $\begingroup$ Fluor , KBR, etc would likely be happy to design something for you. $\endgroup$ – blacksmith37 Feb 6 '18 at 22:12

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