Ammonium carbonate for ammonia production
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I have a question I’d like to ask. We here want to produce ammonia (a purity of 10% is sufficient; high purity isn’t required), and we intend to use ammonium carbonate as the raw material. I would like to ask if it is feasible. If it is feasible, what kind of equipment can be used, and what are the technical challenges?
Producing ammonia (in water) from ammonium carbonate is not feasible. Ammonium carbonate is a processed product of ammonia, and the reverse process is not advisable ； From a process perspective, if the demand is not very high, the most economical approach is to purchase ammonia water, which is a by-product of ammonia synthesis plants. Ammonia water is not considered a true chemical hazard, and the requirements for its production management are not very strict ； When demand is high, liquid ammonia should be used to produce ammonia water; this process is well-established and easy to manage.
Personally, I believe that it is technically feasible to produce ammonia water using ammonium carbonate. Ammonium bicarbonate can be used to react with a base in a reactor. The ammonia gas produced by the reaction can be absorbed by the soft water. However, the economic viability of this process route is unknown.
First of all, thank you to the two gentlemen above for their replies. It’s not for making ammonia water. It’s ammonia. Because there are similar methods for producing ammonia from urea. But now, carbon ammonium is wanted to be used as the raw material.
When heated, a mixture of carbon dioxide and ammonia can be obtained. Let’s discuss it further in terms of industrial production
The theoretically feasible reaction equation is as follows: NH3 + HCO3 —— NH3 + CO2 + H2O. Subsequently, the gases are separated, and carbon dioxide can be isolated in this way.
Carbon dioxide also doesn’t need to be separated; it’s an impure gas
In short, there’s no need for the original poster to go around mentioning ammonia; it’s both economical and convenient to produce ammonia directly from liquid ammonia. The equipment required for this is not expensive, and the manufacturing process is simple. As a fallback option, one can simply purchase excess dilute ammonia solution from fertilizer factories and then use gas stripping to obtain ammonia. Relatively speaking, the price of dilute ammonia solution is even lower.
Hehe, I get it, upstairs. It’s not a detour either; I want to study this issue now. Because if this can be achieved, it will be more convenient for us.
Owner, it’s fine for research purposes, but for industrial application, doing it this way is unnecessary; it’s better to simply buy liquid ammonia and vaporize it.
After the thermal decomposition of ammonium bicarbonate, it is difficult to separate ammonia from carbon dioxide.