The reactor vessel is at 300°C with NaOH, and the jacket is at 350°C with molten salt – what materials can be used? 316L or 321
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The reactor vessel is exposed to 300°C NaOH, while the jacket is exposed to 350°C molten salt – what materials can be used? 316L or 321
It is recommended that the poster refer to the corrosion data manual
I’ve checked the corrosion manual.:handshake
The data sheet isn’t very accurate; practical experience is more reliable. It seems that neither 304 nor 316L can be used
The kettle body is made of nickel-carbon steel composite plate, while the jacket is made of carbon steel.
Our factory has previously manufactured similar reactors for others; we used 321 and 316L materials in the past, only to find that wear and cracks appeared after 5 to 6 years. Now we use 31008 instead, but it is estimated that this material will last only about 8 to 10 years. The jacket should be made of 304 material as well, and expansion joints are necessary – otherwise oil leakage will definitely occur at the edges of the plates, and it will be very difficult to repair such leaks
Thank you:handshake
Thank you:handshake