<b>Steel waste used in reducing emissions of nitrous oxide

Authors

  • Marcelo da Silva Batista Universidade Federal de São João del Rei
  • Tássia Caroline Passos Pereira Universidade Federal de São João del Rei

DOI:

https://doi.org/10.4025/actascitechnol.v39i3.30886

Keywords:

greenhouse gas, reuse, characterization, catalyst, pollution.

Abstract

 

Gross wastes of the steel industry were evaluated as catalyst for the reduction of nitrous oxide. The wastes were obtained from steel mill residues (MS), lamination (LA), quenching (QC) and blast furnace powder (BF) and characterized by X-ray fluorescence (XRF), X-ray diffraction (XRD) and hydrogen temperature-programmed reduction (H2-TPR). Results revealed Si, Ca, S, Rh, Fe, Cr, Mn and Cu for all wastes, with iron featuring the greatest amount. H2-TPR analyses showed H2 consumption peaks associated with rhodium oxide, also detected by XRF. The content of comparative rhodium oxide in samples was: MS > LA > QC > BF. N2O conversion increases with increase in temperature for all catalysts. The activity of the catalysts MS > LA > QC > BF was related to rhodium oxide rate in the wastes.

 

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Author Biographies

Marcelo da Silva Batista, Universidade Federal de São João del Rei

Professor Associado do Curso de Engenharia Quí­mica da UFSJ.

DEQUE/UFSJ

Tássia Caroline Passos Pereira, Universidade Federal de São João del Rei

Estudante do curso de Engenharia Quí­mica da UFSJ.

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Published

2017-07-06

How to Cite

Batista, M. da S., & Pereira, T. C. P. (2017). <b>Steel waste used in reducing emissions of nitrous oxide. Acta Scientiarum. Technology, 39(3), 343–347. https://doi.org/10.4025/actascitechnol.v39i3.30886

Issue

Section

Chemical Engineering

 

0.8
2019CiteScore
 
 
36th percentile
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0.8
2019CiteScore
 
 
36th percentile
Powered by  Scopus