What are the effects of a high alcohol content in the water on the steam drum?
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What are the disadvantages of a high alcohol content in the water on the steam drum?
Why is the alcohol content high in the water added to the drum?
Half of the boiler feed water is distillation condensate, and a leak in the main column reboiler has been confirmed.
The corrosion caused by alcohols is minimal, but if the alcohol contains organic acids, the corrosion becomes significant.
Check the pH value of the water in the drum. If it’s alkaline, there should be no major problem. Methanol entering the conversion system with the steam should not pose any significant problem for the catalyst. But the reboiler should be overhauled in a timely manner.
The steam drum is leaking! What other reason could there be? Stopping for maintenance is the best choice!
A high alcohol content in the water on the drum will result in a relatively high methanol content in the steam as well. It doesn’t have a significant impact on individual users, but it can have a considerable effect on certain areas; for example, steam from bathhouses, or even steam used in some factories for cooking rice, can all cause poisoning in people. It is estimated that your company adds distilled light methanol solution to the drum feedwater for treatment.
It mainly affects the corresponding values of your drum pressure and temperature. Also, the boiler feedwater preheater might be an option,,,,. It’s really sad when alcohol leaks!
Our boiler feed water is equipped with a chemical dosing system, so it is resistant to acid corrosion. A high alcohol content can affect the pressure in the steam drum, which in turn affects the synthesis temperature, as alcohols evaporate more easily than water