METHOD AND APPARATUS FOR PURIFICATION OF EXHAUST GAS

摘要

PROBLEM TO BE SOLVED: To provide a method and an apparatus for purification of exhaust gas containing acids and aldehydes which substantially reduce equipment and running costs, eliminate working risks and allow saving of energy and/or space.

SOLUTION: The apparatus has the first scrubber 2 which brings exhaust gas into gas-liquid contact with treating water circulated with a circulation pump 7 and the second scrubber 3 which brings the exhaust gas treated by the first scrubber 2 into gas-liquid contact with treating liquid circulated with circulation pumps 15a and 15b. Exhaust gas is brought into gas-liquid contact with treating water in the first scrubber 2 to generate acidic mist consisting of acids and water, and the exhaust gas containing the generated acidic mist is brought into gas-liquid contact with the treating liquid containing a treating agent for aldehydes in the second scrubber 3 to make aldehydes harmless.

COPYRIGHT: (C)2007,JPO&INPIT