| 摘要 |
<p>PROBLEM TO BE SOLVED: To build a cost effective removal process of water and carbon dioxide by using an alumina adsorbent which adsorbs water from gaseous raw material and adsorbs the whole or the greater part of the carbon dioxide. SOLUTION: This apparatus includes a pair of columns (TSA) 2, 4, etc., contg. adsorbent beds. The alumina adsorbent is packed into these columns. At the time of operation, air (gaseous raw material) is compressed by a main air compressor 6 and is supplied to an inlet manifold 12, from which the air is supplied into one of the two columns according to either during working at present or during a regeneration stage. The purified air emerging from the column advances to an inlet 34 and advances to the cold box of the air sepn. process. The purification of the air passing the column 2 is continued until the water and the carbon dioxide are adsorbed in the adsorbent as the need for the regeneration of the adsorbent is more needed when the column 2 is under working. In this stage, the other column 4 is operated and the column 2 is regenerated. At this time, the column 2 is reduced in pressure through a discharge pipe 30 while the column 2 is kept heated.</p> |
