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

Chapter 4Cross-media effectsWithout additional measures: relatively high SO 2 emissions due to the low conversion rates.Operational dataTypical O 2 /SO 2 ratio: 1.7.ApplicabilityThe single contact/single absorption process is generally used for gases with an SO 2 contentfrom 3 – 6 %. New single contact plants are built only for inlet gases with substantialfluctuation of the SO 2 content [58, TAK-S, 2003].Applicable to inlet gases with SO 2 contents typically 2 % v/v [59, Outukumpu, 2005].EconomicsLower investment cost in comparison with double contact plants.Driving force for implementationInlet gases with low and/or variable SO 2 content.References to literature and example plants[57, Austrian UBA, 2001, 58, TAK-S, 2003], Voest Alpine Stahl172 Large Volume Inorganic Chemicals – Ammonia, Acids and Fertilisers