scholarly journals Reuse of Waste Shells as a SO2/NOx Removal Sorbent

10.5772/33887 ◽  
2012 ◽  
Author(s):  
Jong-Hyeon Jung ◽  
Jae-Jeong Lee ◽  
Gang-Woo Lee ◽  
Kyung-Seun Yoo ◽  
Byung-Hyun Sho
Keyword(s):  
Nox Removal

Yellow Phosphorus and Potash for SOX and NOX removal

2021 ◽  
pp. 1-26
Author(s):  
Montaser Abduallah Mohammed Alzaky ◽  
Samah Sir Elkhatem Ahmed ◽  
Rawya Adam Basheer ◽  
Rawia Siddig ◽  
Tomadir A. Ibraheem ◽  
...  
Keyword(s):  
Nox Removal ◽  
Yellow Phosphorus

Evaluation of NOx removal from flue gas and Fe(II)EDTA regeneration using a novel BTF–ABR integrated system

2021 ◽  
pp. 125741
Author(s):  
Yanling Wang ◽  
Jianjun Li ◽  
Shaobin Huang ◽  
Xingzhu Huang ◽  
Wenzhe Hu ◽  
...  
Keyword(s):  
Flue Gas ◽  
Integrated System ◽  
Nox Removal

scholarly journals A Review of Photocatalytic Materials for Urban NOx Remediation

Catalysts ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 675
Author(s):  
Hugo Savill Russell ◽  
Louise Bøge Frederickson ◽  
Ole Hertel ◽  
Thomas Ellermann ◽  
Steen Solvang Jensen
Keyword(s):  
Photocatalytic Oxidation ◽  
Urban Air Pollution ◽  
Field Trials ◽  
Urban Environments ◽  
Physical Parameters ◽  
Nox Removal ◽  
Removal Efficiencies ◽  
The Impact ◽  
By Products ◽  
Photocatalytic Materials

NOx is a pervasive pollutant in urban environments. This review assesses the current state of the art of photocatalytic oxidation materials, designed for the abatement of nitrogen oxides (NOx) in the urban environment, and typically, but not exclusively based on titanium dioxide (TiO2). Field trials with existing commercial materials, such as paints, asphalt and concrete, in a range of environments including street canyons, car parks, tunnels, highways and open streets, are considered in-depth. Lab studies containing the most recent developments in the photocatalytic materials are also summarised, as well as studies investigating the impact of physical parameters on their efficiency. It is concluded that this technology may be useful as a part of the measures used to lower urban air pollution levels, yielding ∼2% NOx removal in the immediate area around the surface, for optimised TiO2, in some cases, but is not capable of the reported high NOx removal efficiencies >20% in outdoor urban environments, and can in some cases lower air quality by releasing hazardous by-products. However, research into new material is ongoing. The reason for the mixed results in the studies reviewed, and massive range of removal efficiencies reported (from negligible and up to >80%) is mainly the large range of testing practices used. Before deployment in individual environments site-specific testing should be performed, and new standards for lab and field testing should be developed. The longevity of the materials and their potential for producing hazardous by-products should also be considered.

scholarly journals Evaluation of Cu/SAPO-34 Catalysts Prepared by Solid-State and Liquid Ion-Exchange Methods for NOx Removal by NH3-SCR

ACS Omega ◽  
2019 ◽  
Vol 4 (12) ◽  
pp. 14699-14713 ◽  
Author(s):  
Maitane Urrutxua ◽  
Beñat Pereda-Ayo ◽  
Unai De-La-Torre ◽  
Juan R. González-Velasco
Keyword(s):  
Solid State ◽  
Ion Exchange ◽  
Nox Removal ◽  
Nh3 Scr

Estimating NOx removal capacity of urban trees using stable isotope method: A case study of Beijing, China

2021 ◽  
Vol 290 ◽  
pp. 118004
Author(s):  
Cheng Gong ◽  
Chaofan Xian ◽  
Bowen Cui ◽  
Guojin He ◽  
Mingyue Wei ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Urban Trees ◽  
Nox Removal ◽  
Removal Capacity ◽  
Isotope Method ◽  
Beijing China
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