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Efficient Simultaneous Dry Removal of SO 2 and NO x from Flue Gas over Copper‐Based Catalytic Materials
Author(s) -
Centi Gabriele,
Perathoner Siglinda
Publication year - 2000
Publication title -
developments in chemical engineering and mineral processing
Language(s) - English
Resource type - Journals
eISSN - 1932-2143
pISSN - 0969-1855
DOI - 10.1002/apj.5500080503
Subject(s) - flue gas , sorbent , sorption , catalysis , copper , chemistry , nox , adsorption , selective catalytic reduction , flue , inorganic chemistry , chemical engineering , waste management , organic chemistry , engineering , combustion
Abstract The combined removal of SO 2 (DeSOx) and NOx (DeNOx) from flue gas of power plants can be efficiently realized with a dry process using copper‐based sorbent‐catalysts which oxidize‐adsorb SO 2 in the form of an easily regenerable copper‐sulphate and catalyze the reduction of NO in the presence of NH 3 /O 2 . This contribution reviews the results on this topic, discussing in particular the following main aspects: (i) Sorption and catalytic chemistry of the process, (ii) Development and features of the copper‐based sorbent‐catalyst. (iii) Optimization of the reaction conditions. (iv) Kinetic models of the sorption and catalytic behavior and role of the textural properties of the catalyst, (v) Flowsheet and economics of the process, (vi) Behavior in extended operations and life time cycles. The key features of the technology and its fields of application are also discussed.