ARTÍCULO
TITULO

Steel waste used in reducing emissions of nitrous oxide

Marcelo da Silva Batista    
Tássia Caroline Passos Pereira    

Resumen

 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. 

 Artículos similares

       
 
Yasir A, Khalaf A, Khalaf M     Pág. 1 - 11
Introduction: The plastic soft drink bottle from polyethylene terephthalate (PET) was introduced to consumers in 1970s. Because PET have ester group its chemical recycling is preferred. To control and reduce the environmental pollution recycling and reus... ver más
Revista: Innovaciencia

 
Oleksii Shestopalov,Oleksandr Briankin,Vladimir Lebedev,Olexiy Troshin,Arsen Muradian,Valentyna Ocheretna,Nadiia Yaremenko     Pág. 25 - 31
The article addresses the issue related to the disposal of dust from steel industry as a reinforcing filler for epoxy composites. The polymer composition of "cold welding" that has been developed and studied includes epoxy dian oligomer, amine hardener a... ver más

 
Hoe Sin Wong     Pág. 38
In this new era of modern generation, steel is a very important material in our world. Due to its material characteristic, steel is a cheap material and has strong tensile strength. Therefore, steel is used in many parts in the world like buildings, auto... ver más

 
Mehmet Alpaslan Köroglu     Pág. 484 - 498
Large amount of waste tires are generated progressively every year. Therefore, many researches have been conducted on using recycled tire products in several civil engineering products. This paper is focusing on feasibility of using recycled steel fibers... ver más

 
Liyun Yang, Maomao Yang, Ping Xu, Xiancong Zhao, Hao Bai, Hong Li     Pág. 1 - 17
Steel slag, which makes up a gigantic amount of metallurgical industrial solid waste, was in this experiment successfully synthesized an inexpensive adsorbent used to remove nitrate pollution from aqueous solution. This adsorbent was obtained by mixing s... ver más
Revista: Water