Abstract A method for drying wet industrial gases by contacting them with a refrigerated inorganic brine is shown. The wet gas is contacted with cold brine and water vapor is condensed from the gas into the brine. In a preferred method, two stages of gas-liquid contact are employed to produce a particularly dry gas product. Brine used in the first contacting zone is heat exchanged with colder brine used in the second contacting zone; and, if desired, it may be heat exchanged with dry cold gas product from the second zone before recycle to the first zone. Brine from the second zone is subjected to refrigeration before recycle to the second zone. Drying is carried out in conventional packed towers, at low pressure, and does not require system regeneration or replacement of expensive adsorbents.
Inventors
👤 R Ambros
👤 A Beerwald
👤 A Lang
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-30 15:15
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/26; B01D53/263
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
21 words
The process of claim 1 wherein the gas stream is wet acetylene and the brine is a solution of calcium chloride.
Claim 2
Dependent Claim
23 words
The process of claim 1 wherein the brine is reconcentrated by purging diluted brine from the drying system and adding concentrated brine thereto.
Claim 3
Dependent Claim
60 words
The method of claim 1 including the steps of, passing said first stream of brine from said heat exchanger to a second heat exchanger and passing said dried and cooled gas from said second contact zone to said second heat exchanger for heat exchange with said first stream of brine to further cool said first stream prior to recycling thereof.
Claim 4
Dependent Claim
18 words
The method of claim 1 wherein said wet gas and said first stream of brine are contacted countercurrently.
Claim 5
Dependent Claim
21 words
The method of claim 5 wherein said partially dried and cooled gas and said second stream of brine are contacted countercurrently.