Oxidation behavior of U-10 at% Zr alloy in air at 300–500 ‡c

Kang, Kweon Ho; Shin, Hyun Kyoo; Kim, Kil Jeong; Park, Young Moo; Kim, Chul

doi:10.1007/bf02697136

Cited by 3 publications

(1 citation statement)

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“…Some strong oxidizing agents are applied to realize the combined absorption of NO and SO 2 by transforming NO into soluble NO 2 . Kang et al [ 5 ] realized the synchronous absorption of gaseous NO x and SO 2 into NaOH solution by oxidizing the NO in gas phase with ozone. Guo et al [ 6 ] removed the NO coexisting with SO 2 by utilizing an O 3 /H 2 O 2 advanced oxidation process (AOP) system.…”

Section: Introductionmentioning

confidence: 99%

Regeneration of [Fe(II)‐NTA]⁻ catalyzed by activated carbon in the simultaneous removal of sulphur dioxide and nitric oxide

2023

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The combined control of NO and SO2 can be finished with the [Fe(II)‐NTA]− solution because [Fe(II)‐NTA]− is capable of binding NO. However, the ability of [Fe(II)‐NTA]− to bind NO may be lost quickly due to the fast oxidation of [Fe(II)‐NTA]− to [Fe(III)‐NTA] by oxygen in the flue gases. To make it possible to put this technology into commercial application, efficient measures should be taken to regenerate [Fe(II)‐NTA]− to maintain the NO removal efficiency for a long time. The catalytic activity of activated carbon in the reproduction of [Fe(II)‐NTA]− has been investigated in a fixed‐bed reactor. The experiments indicate that [Fe(II)‐NTA]− reproduction increases with [Fe(III)‐NTA] and SO32− concentrations as well as temperature. Fast flow and high pH are unfavourable for the reproduction of [Fe(II)‐NTA]−. An NO removal efficiency of 80.11%–89.78% is sustained for a long period of time with the [Fe(II)‐NTA]− reproduction catalyzed by activated carbon. The reaction orders with respect to [Fe(III)‐NTA] and SO32− are 0.784 and 0.336, respectively. The apparent activation energy for this catalytic reaction is estimated to be 41.01 kJ mol−1.

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Section: Introductionmentioning

confidence: 99%