website will be down on 13/06/2019 and 14/06/2019 due to technical maintenace!

Scrubbing/Neutralising/Inactivating Media

Sr.No.Chemical GasesScrubbing, Neutralising or Inactivating media Material of construction
1Phosgene COCL2Caustic Soda SolutionWater srubber of FRP followed by Caustic scrubber of MSRL (or Caustic scrubber alone)
2Chlorine Cl2Caustic/limeMSRL/PP backed by FRP.
3Sulfur dioxide SO2Caustic soda solutionPolypropylene backed by FRP up to their thermal unit or SS scrubber.
4Ammonio gas NH3Water MS
5Hydrochloric acid HCl Caustic/limeMsrl/PP backed by FRP
6Nitrous acid fumesCaustic/Thiosulfate
Solution/Urea.
FRP
7Hydrogen flu-oride HFWater/CausticTeflon.
8Hydrocyanic acid HCNHypochloriteMSEL/PP backed by FRP.
9Ethyl chloride C­2H5ClWater (poor Solubility)--
10Ethylene oxide CH2-O-CH2Water sprayMS Tower.
11Hydrogen sulfide H2S17% Monoethanol amine and 83% water or Caustic.MSRL
12Hydrogen H2Ignite, use back flame arrestorMS
13Propylene CH2-CH=CH2-do--
14Ethylene CH2=CH2-do--
15Organic gases-do--
16Fluoride, SiF4 from acidification of phosphate rock
Liquids(Acids)
Water spray-
17.a. Sulfuric acid H2SO4
b. Hydrochloric acid HCL
c. Nitrate acid HNO3
(Alkalies)
Lime/Caustic/Water
Lime/Caustic/Water
Lime/Caustic/Water
MSRL
MSRL
MSRL
18.a. Sodium hydr-oxide NaOH
b. PotassiumHydroxideKOH
Water
Water
MS
MS
Note: At appropriate places heat exchangers will be required in circulating system depending on the concetration of gases and absorbing liquor.
Go to Navigation