| 摘要 |
PROBLEM TO BE SOLVED: To improve energy efficiency required for the desorption of a solvent.SOLUTION: High-pressure superheated steam 22 is produced from water 21 in a high-pressure superheated steam production process 11. In a partition process 12, the high-pressure superheated steam 22 is partitioned into first high-pressure superheated steam 22a and second high-pressure superheated steam 22b. In a decompression process 13, only the first high-pressure superheated steam 22a is decompressed until the pressure of the first high-pressure superheated steam 22a becomes the atmospheric pressure. By the decompression, the first high-pressure superheated steam 22a becomes decompressed superheated steam 23. In a heating process 14, by heat exchange with the second high-pressure superheated steam 22b, the decompressed superheated steam 23 whose temperature is lowered by the decompression is heated. In a desorption process 15, through the decompressed superheated steam 23 heated by an adsorbent with the solvent adsorbed, the solvent is desorbed from the adsorbent. By the desorption process 15, the decompressed superheated steam 23 with the solvent desorbed from the adsorbent becomes solvent-containing steam 24. |
