Metal chelate absorption coupled with microbial reduction for the removal of NOx from flue gas
✍ Scribed by Wei Li; Cheng-Zhi Wu; Yao Shi
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 2006
- Tongue
- English
- Weight
- 130 KB
- Volume
- 81
- Category
- Article
- ISSN
- 0268-2575
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✦ Synopsis
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