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Rates of reaction of SO 2 with metal oxides
Author(s) -
Deberry David W.,
Sladek Karl J.
Publication year - 1971
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450490612
Subject(s) - non blocking i/o , thermogravimetric analysis , sorbent , flue gas , metal , sorption , materials science , flue , oxide , analytical chemistry (journal) , inorganic chemistry , mineralogy , nuclear chemistry , chemistry , environmental chemistry , metallurgy , adsorption , waste management , catalysis , organic chemistry , engineering
Rates of sorption of SO 2 from synthetic flue gas by 14 metal oxides were determined. These oxides had been selected for their potential applicability to processes for removing SO 2 from flue gas using thermal regeneration of sorbent. Measurements were performed using thermogravimetric analysis, and rates were fitted to semi‐empirical expressions; CeO 2 , Co 3 O 4 , Cr 2 O 3 , CuO, Fe 2 O 3 , and NiO displayed measurable rates in the range 200° to 500°C, and were converted to sulphates. Rates were immeasurably small at 25° to 800°C for Al 2 O 3 , Sb 2 O 5 , SnO 2 , TiO 2 , V 2 O 5 , WO 3 , ZnO, and ZrO 2 , CuO and CeO 2 showed the highest rates