This experimgnt was performed to prepare a concentrated ammonium carbonate solution by the absorption of a gas mixture of ammonia and carbon dioxide in water in the wetted-wall column with cooling jacket. The results and conclusions are as follows:
1) Ammonia was absorbed rapidly in the upper part of the column, and the absorption rate for carbon dio xide became-greater in the lower part because of the already-formed aqueous ammonia.
2) The partial pressure of ammonia in gas phase decreases with the distance from the top of the column, while that of carbon dioxide gave maximum value near the middle part of the column and then decreased al ong the dolurnn.
3) The temperatures profile of the liquid phase had maximum value at one point in the upper part of the column and thereafter fell off graduatly to that of the inlet cooling Water at the bottom.
4) The measured absorption rates for carbon dioxide at various positions in the column were comparable with calculated values as shown in Fig. 8.
5) The present, results, were applied to design the flow sheet of the wetted-wall column involving an auxiliary equipment of large scale.
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