HCl and HBr Sorbent Traps
Hydrogen chloride (HCl) and hydrogen bromide (HBr) sorbent traps are used for measuring hydrogen halides in any sampling environment for engineering studies and control technology optimization, as well as stack measurement check-ups between quarterly testing.
They can be sampled using the same sampling systems as mercury (Hg) sorbent traps. The analysis is done using ion chromatography and the quantitation limit is 0.1 ppmv with reasonable sample volumes.
HCl Sorbent Trap Applications:
An alternative to EPA Method 26 (M26)
Check HCl concentration in the stack prior to quarterly MATS testing (wet and dry sources)
Derive correlation between Hg oxidation and HCl concentration
HBr Sorbent Trap Applications:
Determine HBr concentrations resulting from using calcium bromide injection for Hg oxidation
Use upstream and downstream of air preheaters (APH) to predict corrosion rates due to the interaction between HBr/hydrobromic acid and the APH basket material
HCl & HBr Sorbent Trap Application Diagram
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