At around 600 degrees in high temperature, with HCL gas present – what materials should be used and what anti-corrosion measures are necessary?
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This post was last edited by youyz on 2019-12-10 at 09:09. The operating temperature is around 600 degrees; the medium contains HCL gas, and the process takes place in a fluidized bed at atmospheric pressure. High-temperature calcination is used to remove trace amounts of acid present in the powder. What materials should be used, and what methods should be employed for corrosion protection of the inner walls?
Is it a pipeline or a piece of equipment? Is it a heat exchanger? Reactor? Falling film absorber? Tower-type equipment? ……If you don’t explain these clearly, no one will be able to help you.
It wasn’t explained clearly – the gas contains HCL; what about the other components? Is there water present? Choose the material and consider anti-corrosion measures for the inner wall. What type of equipment will it be used in? Tanks, heat exchangers, pipes, or some other equipment?
Around 600 degrees in temperature, containing HCL gas; operated at atmospheric pressure, no corrosion protection required. Using high-quality carbon steel material will suffice.
Fluidized bed, used for high-temperature calcination to remove trace amounts of acid present in the powder
Fluidized bed, used for high-temperature calcination to remove trace amounts of acid present in the powder
At 600 degrees, moisture does not adhere to the metal surface during operation... Carbon steel can be used, but it is important to pay attention to whether hydrochloric acid mixed with water may appear at the start or stop of the system and adhere to the equipment surface; this is something that the system needs to be careful about