Flue gas cleaning in power stations by using electron beam technology. Influence on PAH emissions

Callén, M.S.; Cruz, María Teresa de la; Маринов, Стефан; Murillo, R.; Stefanova, M.; Mastral, A.M.

doi:10.1016/j.fuproc.2006.10.006

Cited by 26 publications

(16 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The determined PAH content was reasonable, ~ 60 microg/kg and was lower than PAHs background in Bulgarian soils. These results demonstrated the insignificant role of adsorption for PAHs removal (Callén et al, 2007). Naphthalene (NL) and acenaphthene (AC) decomposition in gas mixture was studied in lab scale experiment (Ostapczuk, et al, 2008b).…”

Section: Naphthalene(c10h8)mentioning

confidence: 90%

“…It was found that removal efficiency of PAHs ranges from 40% up to 98%. Callén et al (2007) studied PAH removal from lignite-combustion flue gas from Bulgarian Maritza-East thermal power plant (TPP) and obtained that PAHs concentration after EB irradiation resulted in ~ 10 fold decrease in studied PAHs emissions. The removal efficiency of PAH removal at the dose of 4 kGy was 85% (weight/weight).…”

Section: Pahs and Dioxin Removal From Waste Off-gas Under Eb-irradiationmentioning

confidence: 99%

See 1 more Smart Citation

Organic Pollutants Treatment from Air Using Electron Beam Generated Nonthermal Plasma – Overview

Sun¹,

Chmielewski²

2012

Organic Pollutants Ten Years After the Stockholm Convention - Environmental and Analytical Update

View full text Add to dashboard Cite

Section: Naphthalene(c10h8)mentioning

confidence: 90%

Section: Pahs and Dioxin Removal From Waste Off-gas Under Eb-irradiationmentioning

confidence: 99%

Organic Pollutants Treatment from Air Using Electron Beam Generated Nonthermal Plasma – Overview

Sun¹,

Chmielewski²

2012

Organic Pollutants Ten Years After the Stockholm Convention - Environmental and Analytical Update

View full text Add to dashboard Cite

“…However, this technology is too expensive for developing countries, requires a large area, and produces large volumes of wastewater and low quality by-products [3,4]. As an alternative to this treatment method, many studies have demonstrated that nonthermal plasma can be used for efficient SO 2 removal from polluted flue gas [5][6][7][8][9][10][11][12]. Saavedra [12] highlighted that nonthermal plasma can be used for simultaneous removal of several pollutants at atmospheric pressure.…”

Section: Introductionmentioning

confidence: 99%

Oxidization of SO2 by Reactive Oxygen Species for Flue Gas Desulfurization and H2SO4 Production

Bai

2011

Plasma Chem Plasma Process

View full text Add to dashboard Cite

A strong ionization dielectric barrier discharge was used to produce a high concentration of reactive oxygen species that were then injected into a simulated flue gas in a duct to remove SO 2 by oxidation. Sulfuric acid (H 2 SO 4 ) was produced through the following two reactions: (1) O 3 oxidation of SO 2 -SO 3 , which then reacted with H 2 O to produce H 2 SO 4 ; and (2) reaction of O 2? with H 2 O to produce ÁOH radicals, which then rapidly and non-selectively oxidized SO 2 -H 2 SO 4 . When the molar ratio of reactive oxygen species to SO 2 was 4:1, the SO 2 removal efficiency was 94.6%, the energy consumption per cubic meter of flue gas was 13.3 Wh/m 3 , the concentration of recovered H 2 SO 4 was 4.53 g/l, and the H 2 SO 4 recovery efficiency was 28.8%. The H 2 O volume fraction in the simulated flue gas affected the SO 2 removal efficiency, whereas the O 2 and CO 2 volume fractions did not. These results prove that oxidation by reactive oxygen species is a feasible method for flue gas desulfurization.

show abstract

“…EB treatment of these compounds has been investigated in pilot scale and two different tendencies were observed: reduction of concentration of the most volatile PAH (like NL and AC) in flue gas from lignite combustion [10] in opposite to slight increase observed in coal combustion flue gas [7,8]. The change of PAH concentration in flue gas can be caused by the combination of three processes: PAH destruction in radiation-induced chemical processes, PAH adsorption on the surface of fertilizer and PAH formation in radical processes.…”

Section: Introductionmentioning

confidence: 99%

Naphthalene and Acenaphthene Decomposition by Electron Beam Generated Plasma Application

Ostapczuk

Hakoda

Shimada

et al. 2008

Plasma Chem Plasma Process

View full text Add to dashboard Cite

The application of non-thermal plasma generated by electron beam (EB) was investigated in laboratory scale to study decomposition of polycyclic aromatic hydrocarbons like naphthalene and acenaphthene in flue gas. PAH compounds were treated by EB with the dose up to 8 kGy in dry and humid base gas mixtures. Experimentally established G-values gained 1.66 and 3.72 mol/100 eV for NL and AC at the dose of 1 kGy. NL and AC removal was observed in dry base gas mixtures showing that the reaction with OH radical is not exclusive pathway to initialize PAH decomposition, however in the presence of water remarkably higher decomposition efficiency was observed. As by-products of NL decomposition were identified compounds containing one aromatic ring and oxygen atoms besides CO and CO 2 . It led to the conclusion that PAH decomposition process in humid flue gas can be regarded as multi-step oxidative de-aromatization analogical to its atmospheric chemistry.

show abstract

Flue gas cleaning in power stations by using electron beam technology. Influence on PAH emissions

Cited by 26 publications

References 22 publications

Organic Pollutants Treatment from Air Using Electron Beam Generated Nonthermal Plasma – Overview

Organic Pollutants Treatment from Air Using Electron Beam Generated Nonthermal Plasma – Overview

Oxidization of SO2 by Reactive Oxygen Species for Flue Gas Desulfurization and H2SO4 Production

Naphthalene and Acenaphthene Decomposition by Electron Beam Generated Plasma Application

Contact Info

Product

Resources

About