METHOD OF OPERATING A GAS SCRUB AND GAS SCRUB

摘要

The invention relates to a method of shutting down at least part of a gas scrub (G), and to a gas scrub (G) which comprises an absorber (A) and a regeneration part (R). In normal operation a scrubbing medium (1) is circulated in a scrubbing medium circuit and thus loaded in the absorber (A) at elevated pressure with substances removed from a gas mixture. The substances are removed from the loaded scrubbing medium (2) in the regeneration part (R). Scrubbing medium (3) is removed from the scrubbing medium circuit, transferred into a storage tank (S) and stored there at atmospheric pressure. Loaded scrubbing medium (3) is warmed (E1) and intermediately stored at elevated pressure in a degassing vessel (Z) in order to remove absorbed substances (5) from the scrubbing medium before it is passed into the storage tank (S).

主权项

1. A method of shutting down at least part of a gas scrub which comprises an absorber and a regeneration part,
wherein in normal operation a scrubbing medium is circulated in a scrubbing medium circuit and said scrubbing medium becomes loaded in the absorber at elevated pressure with substances removed from a gas mixture, and said substances are removed from the loaded scrubbing medium again in the regeneration part, said method comprising: removing loaded scrubbing medium from the scrubbing medium circuit, transferring the removed loaded scrubbing medium into a storage tank and storing the removed scrubbing medium therein at atmospheric pressure, and before being passed into said storage tank, the removed loaded scrubbing medium is warmed and intermediately stored at elevated pressure in a degassing vessel in order to remove absorbed substances from the removed loaded scrubbing medium.