| 摘要 |
An air pollution control system comprises: a carry-in tank truck (22A) that carries in a feedstock, i.e., concentrated hydrochloric acid (35% hydrochloric acid); a hydrogen chloride vaporizer (24) that vaporizes the concentrated hydrochloric acid to obtain hydrogen chloride (23); a liquid level regulator (27) that separates residual hydrogen chloride (26) from extracted dilute hydrochloric acid (25A) discharged as a by-product from the hydrogen chloride vaporizer (24), and that regulates the liquid level of the hydrogen chloride vaporizer (24); a concentration regulating tank (28) that regulates the hydrochloric acid concentration of extracted dilute hydrochloric acid (25B) from which the residual hydrogen chloride (26) has been separated to a predetermined concentration (e.g., 22%); a by-product tank (30) that stores therein dilute hydrochloric acid (29) regulated to have a predetermined concentration; and a carry-out tank truck (22B) that carries out the dilute hydrochloric acid (29) with a predetermined concentration discharged from the by-product tank (30). |
