| 摘要 |
In a wet-process gas treatment method of treating an acid gas by means of at least two treating columns connected in series, ratio of concentration of acid gas at an outlet to concentration of acid gas at an inlet, of a first treating column is set higher than ratio of concentration of acid gas at an outlet to concentration of acid gas at an inlet, of at least one of other treating columns, thereby preventing deposits from forming in the interior of connecting pipes between the columns and in the interiors of the treating columns, to prevent the connecting pipes from their blockage.
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