Deriving optimum hydrochloric acid from the biological waste gas treatment
Nov 30, 2015
Krems Chemie Chemical Services AG, a chemical company in the Wachau valley, Austria manufacturers halogen-free flame retardants and intermediates for a diverse range of applications. The Valmet Concentration Measurement units are installed in the biological waste gas treatment plant.
Summary
Location
Wachau valley, Austria
Customer challenge
Krems Chemie upgraded and expanded their production facilities for fireproofing materials. Halogene-free flame retardants are produced by reaction between phosphorus trichloride and orthophenyl phenol with zinc chloride as catalyst. Beside the halogene-free flame retardants, hydrochloric acid is produced as waste gas. Gaseous hydrochloric acid as a by-product in the process is derived by biological treatment of the waste gas.
Solution
In order to measure and control the gas scrubber, two Series 3300 Valmet Concentration Measurements units were installed to show the exact Hydrochloric acid in %.
Results
The unique corrosion resistant sensors perform high accuracy measurements based on the 4-electrode measuring principle, and the design provides for high durability with a minimum maintenance even in harsh environments.
