| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for exchanging an absorbent in a harmful gas removing device which can suppress the regeneration frequency of the absorbent. <P>SOLUTION: In the method for exchanging the absorbent, when the treatment ratio of nitrogen dioxide on the atmosphere 1 fed from a treating container 11 becomes to a standard value or less (for example, 90%) only the adsorbents 12A1, 12B1 exceeding the usage rate (for example, 30%) of a predetermined ratio are extracted from the container 11 out of the absorbents 12A1-12D1 in the container 11, the residual absorbent 12C1, 12D1 of the usage or less are moved to the arrangement position of the extracted absorbents 12A1, 12B1, and the absorbents 12A1-12D1 are exchanged in the container 11 by arranging new absorbents 12C2, 12D2 to vacant arrangement positions. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
