Can hydrochloric acid be absorbed by water?
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As we all know, hydrochloric acid is highly soluble in water – 1 cubic meter of water can absorb 500 cubic meters of HCl gas. Is it advisable to use water to absorb HCl gas now? ? What problems could arise? ?
Yes, in terms of practical use, we have chosen a graphite falling film absorption tower for this purpose, and the results are good; the absorption concentration can reach over 25 degrees Baume. It is important to note that the absorption process is exothermic, so temperature control is essential
1. Yes, in terms of practical use, we have chosen a graphite falling film absorption tower for absorption, and the results are good; the absorption concentration can reach over 25 degrees Baume. It is important to note that this is an exothermic process, so temperature control must be taken into account. 2. Another issue is equipment corrosion.
When hydrogen chloride gas is used to produce industrial hydrochloric acid, it is absorbed using water. As for the equipment, graphite falling film absorbers are commonly used, though packed towers are also employed. To protect the environment, at least two-stage absorption systems should be used
This is the established process for the industrial production of hydrochloric acid, without any doubt.
Is this feasible or not? All ion-exchange membrane caustic soda manufacturers do it this way
It doesn’t work well; why not use alkaline water?
If you are dealing with waste gas treatment, you need a circulation pump; in this case, you must pay attention to the relationship between the HCL concentration in the water and the removal efficiency you require
There are no theoretical issues, and it has many practical applications as well!
Can an aqueous solution of calcium oxide be used? It’s probably cheaper than using caustic soda