Questions about reactor temperature
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There is a workshop for hydrolysis reaction, which needs to control the temperature at 79-83 degrees Celsius and use 5% liquid alkali for hydrolysis. Question 1: We use an enamel kettle, and the dilute alkali dissolves the enamel quickly. Moreover, the process requirements do not allow the addition of iron ions, and the concentration of the liquid alkali cannot be increased. Does anyone have any good suggestions or opinions? Question 2: In the past, steam was used for heating, but once the temperature exceeded the standard and the number of isomers increased, the batch of materials was ruined and the only option was to control the temperature. Later, the technology was changed to use 80 degrees Celsius hot water for heating. As the heating time became longer, more isomers were produced. Does anyone have good heating opinions and suggestions? Since the temperature needs to be cooled down after insulation, the electric heating method is difficult to work. And, even with the addition of electric heating, cooling is a problem.
Can it be lined with PTFE? It is better to control the temperature automatically than to control it manually. Use the regulating valve to control the opening size of the steam and then use the regulating valve to control the opening size of the cooling water. I was working on a vitamin project, and that’s how I got it
If the temperature is not high, you can consider plastic lining
Can stainless steel reactor be used?
1. You can consider using a stainless steel and carbon steel composite kettle, which can be cheaper. 2. The kettle can be made into a jacket, and the water can be heated with steam to increase the temperature. When it reaches 79 degrees, turn off the steam and use normal temperature water to cool down. In this way, the residual temperature can be used to control the temperature at around 82 degrees. Control can adopt DCS control.