Large Volume Inorganic Chemicals - Ammonia ... - ammk-rks.net

Chapter 3Installing a low temperature SCR. Capital costs of a complete SCR facility are at least NLG1000000 (about EUR 450000). To reduce only the startup emissions, the costs of an SCR areunacceptable in most cases. Other economics are not known.Installing a scrubber. Since water cannot be used as a scrubber fluid (the NO x turns the tail gasacid, so an alkaline scrubber liquid is required), the annual costs of the scrubber are expected tobe considerable, although the exact figures are not known.Installation of a tower with a dry absorbent material. Annual costs are expected to beconsiderable, since the saturated absorbent material has to be replaced regularly. Exact figuresare not known.Driving force for implementationReduction of the visual appearance from the reddish-brown or yellow stack gas.Reference literature and example plants[88, infoMil, 1999]Large Volume Inorganic Chemicals – Ammonia, Acids and Fertilisers 139