“…Ammonia had been detected in the off-gas system by Koopman,13 thus justifying the installation of an ammonia scrubber to the SRAT apparatus. IC measurements of NH 4 + in the FAVC condensate, which is downstream of the scrubber and upstream of the Nafion dryer, showed negligible ammonium ion in the condensate despite the presence of large concentrations of NH 3 and NH 4 + , 925 ppm (just upstream of the scrubber) and 934 μg/mL (in scrubber solution), respectively; thus, it can be concluded that the ammonia scrubber worked efficiently.…”