Original title: Comparison of Ca(OH)2 and NaHCO3 as Sorbents Suitable for Dry Flue Gas Treatment at Temperatures Below 250 °C.
Authors: Zach, Boleslav
Document type: Papers
Conference/Event: Bažant Postgraduate Conference 2016, Prague (CZ), 20160606
Year: 2016
Language: eng
Abstract: The sorption rate of HCl on Ca(OH)2 is, in comparison with NaHCO3 (Na2CO3), an order of magnitude lower and to reach the emission limits, the flue gas treatment has to be conducted under suitable conditions. A suitable temperature for removal of acidic gases by calcium based sorbents is connected to the content of H2O in flue gas. The reaction rate is very good in the vicinity of dew point but the process conditions shouldn’t be too close to the dew point to avoid condensation. The advantages of Ca(OH)2 are better reactivity towards HF, very low water solubility of air pollution residues, and low price in comparison with NaHCO3.
Keywords: air pollution residues; flue gas; NaHCO3
Project no.: TE02000236 (CEP)
Funding provider: GA TA ČR
Host item entry: Proceedings of abstracts, ISBN 978-80-86186-82-5
Rights: This work is protected under the Copyright Act No. 121/2000 Coll.

Institution: Institute of Chemical Process Fundamentals AS ČR (web)
Original record: http://hdl.handle.net/11104/0260596

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