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Optimization of Gas Scrubbing in the Calcination of Struvite
Author(s) -
Thumeyer Lucas,
Bertau Martin,
Fröhlich Peter
Publication year - 2021
Publication title -
chemie ingenieur technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 36
eISSN - 1522-2640
pISSN - 0009-286X
DOI - 10.1002/cite.202100113
Subject(s) - struvite , data scrubbing , scrubber , phosphoric acid , ammonia , calcination , carbon dioxide , chemistry , waste management , ammonium phosphate , inorganic chemistry , ammonium bicarbonate , magnesium , catalysis , organic chemistry , raw material , fertilizer , engineering
During the calcination of magnesium ammonium phosphate hexahydrate (struvite) in the process of recycling to obtain phosphoric acid, ammonia is released in addition to water and carbon dioxide. With a gas scrubber, e.g., in the form of a bubble column reactor, ammonia can be recovered as a usable valuable material. With water as an inexpensive and effective absorbent, almost complete absorption (92 %) of the ammonia from the exhaust air can be achieved.