Premium
Metal chelate absorption coupled with microbial reduction for the removal of NO x from flue gas
Author(s) -
Li Wei,
Wu ChengZhi,
Shi Yao
Publication year - 2006
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.1394
Subject(s) - flue gas , absorption (acoustics) , chemistry , chelation , metal , inorganic chemistry , absorption efficiency , nuclear chemistry , materials science , organic chemistry , composite material , zoology , biology
Abstract A novel process for the removal of NO x from flue gas by a combined Fe(II)EDTA absorption and microbial reduction has been demonstrated. Fe(II)EDTA–NO and Fe(III)EDTA (EDTA: ethylenediaminetetraacetate) can be effectively reduced to the active Fe(II)EDTA in the reactor containing microorganisms. In a steady‐state absorption and regeneration process, the final removal efficiency of NO is up to 88%. The effects of four main parameters (i.e. NO, O 2 and SO 2 concentrations, and the amount of cyclic solution) on NO x removal efficiency were experimentally investigated at 50 °C. The results provide some insight into conditions required for the successful removal of NO x from flue gas using the approach of Fe(II)EDTA absorption combined with microbial reduction. Copyright © 2005 Society of Chemical Industry