Exhaust gas absorption
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What treatment measures are adopted in China for the volatile gas HCl generated during the production or use of hydrochloric acid?
The absorption tower is washed with water; water is usually used as the medium, though alkali solutions can also be employed. Depending on the volume of exhaust gas, it is decided whether to reuse the acid solution after absorption. If recycling is not required, alkali solution can be used directly. For larger quantities, use multi-stage absorption.
Generally, graphite falling film absorption is used, with multiple stages connected in series for cyclic absorption. Finally, alkaline washing is employed for venting! The process isn’t difficult at all! :lol :victory:
Agree with the opinion above... multi-stage series-connected graphite absorption towers... The exhaust gas is absorbed through spray absorption in packed towers, with plastic packing materials such as ceramic and polypropylene being commonly used... The results are quite good.
Are there any specific materials? Upload some
You can design this type of tower by yourself; the pressure is not high, and the flow rate is not large either – it’s a small tower
If it is in small amounts in the exhaust gas, it is absorbed by the alkaline solution in the graphite tower.
Absorbed using a fiberglass water scrubber tower. Why do people still use graphite towers? Fiberglass towers have a more attractive appearance and a longer service life.