Oxygen partial pressure-dependent behavior of various catalysts for the total oxidation of VOCs using cycled system of adsorption and oxygen plasma

Kim, Hyun‐Ha; Ogata, Atsushi; Futamura, Shigeru

doi:10.1016/j.apcatb.2007.10.038

Cited by 194 publications

(97 citation statements)

References 60 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…저온 플라즈마 기술은 일 반적으로 1000 ppm이하의 낮은 농도의 대기오염 물질을 분해하는데 효과적이다 [4,9,10] 이었다. γ-Al2O3 는 비표면 적이 넓고 안정성이 우수하여 촉매 지지체로 가장 널리 사용되는 물질 중 하나이다 [20].…”

unclassified

Combined Removal of n-heptane and CO using Plasma-catalytic Process

Lee¹,

Jo²,

Mok³

2016

Journal of the Korean Institute of Gas

View full text Add to dashboard Cite

-Combined removal of n-heptane and carbon monoxide (CO) using a plasma-catalytic process was investigated. The performance of the plasma-catalytic process was compared with that of the catalyst-alone process to characterize the decomposition of n-heptane and CO with the operation parameters such as the type of catalyst, reaction temperature, and discharge power. From several sets of experiments, it was found that the decomposition efficiency of n-heptane mainly depended on the specific input energy rather than the reactor temperature, whereas the oxidation of CO on both the energy density and the reaction temperature. The results conducted over several metal oxide catalysts exhibited that the decomposition efficiency of n-heptane was in the order: Pd/γ-Al2O3 > Ru/γ-Al2O3 ≈ Ag/γ-Al2O3. Especially, Pd/γ -Al2O3 catalyst did hardly generate CO as a byproduct during the decomposition of n-heptane under an appropriate condition, revealing CO2 selectivity of nearly 100%. The CO oxidation efficiency was largely affected by the type of catalyst (Pd/γ-Al2O3 > Ru/γ-Al2O3 > Ag/γ-Al2O3). At temperatures below 180℃, the plasma-catalytic process was more effective in the oxidation of CO, while above 180℃, the catalytic process resulted in slightly higher CO oxidation efficiency.

show abstract

unclassified

Combined Removal of n-heptane and CO using Plasma-catalytic Process

Lee¹,

Jo²,

Mok³

2016

Journal of the Korean Institute of Gas

View full text Add to dashboard Cite

show abstract

“…As shown in Table 1, the order of removal efficiency of dilute benzene followed the trends of Surface discharge (Kim et al 2008), DBD (Hyun-Ha et al 2005) [DBD (Zhu et al 2009) [ Multistage corona (Chavadej et al 2007) [ DBD (Park et al 2002) [ Present study [ Surface discharge (Kim et al 2005a) [ packed-bed DBD [ BaTiO 3 -packed-bed DBD (Harling et al 2008) [ DBD glow discharge (Lee et al 2004) [ DBD (Chae et al 2004) [ DBD (Lu et al 2006). SIE increases in the order of BaTiO 3 -packed bed (Harling et al 2008) \ Surface discharge (Kim et al 2008 (Park et al 2002). Accordingly, the concentration of benzene (ppm): Multistage corona (Chavadej et al 2007) [ Present study [ BaTiO 3 Packed bed (Harling et al 2008) [ DBDTiO 2 (Lu et al 2006) [ Packed-bed-DBD [ Surface discharge (Kim et al 2005a) [ Surface discharge (Kim et al 2008), DBD (Park et al 2002) [ DBDTiO 2 (Chae et al 2004), DBD glow discharge (Lee et al 2004).…”

Section: Comparison With Other Plasmasmentioning

confidence: 99%

“…Table 1 summarizes the decomposition efficiency for benzene removal with various nonthermal plasma technologies (Vandenbroucke et al 2011). As shown in Table 1, the order of removal efficiency of dilute benzene followed the trends of Surface discharge (Kim et al 2008), DBD (Hyun-Ha et al 2005) [DBD (Zhu et al 2009) [ Multistage corona (Chavadej et al 2007) [ DBD (Park et al 2002) [ Present study [ Surface discharge (Kim et al 2005a) [ packed-bed DBD [ BaTiO 3 -packed-bed DBD (Harling et al 2008) [ DBD glow discharge (Lee et al 2004) [ DBD (Chae et al 2004) [ DBD (Lu et al 2006). SIE increases in the order of BaTiO 3 -packed bed (Harling et al 2008) \ Surface discharge (Kim et al 2008 (Park et al 2002).…”

Section: Comparison With Other Plasmasmentioning

confidence: 99%

“…SIE increases in the order of BaTiO 3 -packed bed (Harling et al 2008) \ Surface discharge (Kim et al 2008 (Park et al 2002). Accordingly, the concentration of benzene (ppm): Multistage corona (Chavadej et al 2007) [ Present study [ BaTiO 3 Packed bed (Harling et al 2008) [ DBDTiO 2 (Lu et al 2006) [ Packed-bed-DBD [ Surface discharge (Kim et al 2005a) [ Surface discharge (Kim et al 2008), DBD (Park et al 2002) [ DBDTiO 2 (Chae et al 2004), DBD glow discharge (Lee et al 2004). …”

Section: Comparison With Other Plasmasmentioning

confidence: 99%

See 1 more Smart Citation

Catalytic nonthermal plasma reactor for the abatement of low concentrations of benzene

Karuppiah

Reddy

et al. 2013

Int. J. Environ. Sci. Technol.

View full text Add to dashboard Cite

Oxidative decomposition of dilute benzene in air was carried out in a dielectric barrier discharge reactor with inner metal fiber electrode that was later modified with transition metal oxides. Typical results indicated the best performance of the designed reactor for the removal of dilute benzene, where conventional techniques may not be efficient. The introduction of transition metal oxides in the discharge zone increased the conversion of benzene and shifted the product distribution to total oxidation. The performance of the reactor was further improved on humidification of air stream. The better performance of MnO x /SMF over CoO x and SMF may be due to in situ decomposition of ozone that may lead to the formation of strong oxidant atomic oxygen, whereas the best performance with TiO 2 /MnO x /SMF may be assigned due to the synergy between ozone decomposition on MnO x surface and photocatalytic action on TiO 2 .

show abstract

“…In the field of air pollution control, the NTP tech nology h as been tested for the abatement of var ious types of hazardous air pollutants such as volatile organic compounds (VOCs) (Ogata et al, 1999;Urashima and Chang, 2000;Futamura et al, 2004;Magureanu et al, 2007;Subrahmanyam et al, 2007), SO 2 (Mizuno, et al,1986;Changet al,1991), NOx (Ohkubo et al,1994;Tonkyn et al,2003;Young et al, 2004), CFCs (Li and Ma, 2000;Gal et al, 2003;Park et al, 2003;Ricketts et al, 2004) odors (Masuda et al, 1993;Mizuno et al,1993;Chang and Tseng, 1996;Zhu et al, 2007), mercury (Masuda,1988), etc. In order to further improve the energy efficiency of the VOCs removal decomposition process by the plasma, the cooperation with catalyst has been tested by some researchers (Einaga et al, 2001;Guo et al, 2006;Kim, 2006;Kim et al, 2008). These studies showed that the combination of discharge plasma with catalyst is a very effective method in VOCs removal.…”

Section: Introductionmentioning

confidence: 99%

Gaseous phase benzene decomposition by non-thermal plasma coupled with nano titania catalyst

Zhu

Jin

et al. 2008

Int. J. Environ. Sci. Technol.

View full text Add to dashboard Cite

Synergistic effect of atmospheric non-thermal plasma generated by dielectric barrier discharge and nano titania photocatalyst for benzene decomposition was tested. The paper indicated the effect of photocatalyst on removal efficiency of benzene, the compare of photocatalyst characteristic in different high temperatures by heat treatment, analysis of by-products. The results showed that the effect of degradation was visible by added photocatalyst in the plasma reactor. When concentration of benzene was 600 mg/m 3 and electric field strength was 10 kV/cm, the removal efficiency of benzene was increased up to 81 % without photocatalyst. At the same condition, the removal efficiency was increased to 15 % higher with photocatalyst. Nano titania crystal was anatase crystal in 450 o C heat treatment which is best for benzene removal. The plasma reactor packed with photocatalyst shows a better selectivity of carbon dioxide than that without photocatalyst. By-products are mostly carbon dioxide, water and a small quantity of carbon monoxide.

show abstract

Oxygen partial pressure-dependent behavior of various catalysts for the total oxidation of VOCs using cycled system of adsorption and oxygen plasma

Cited by 194 publications

References 60 publications

Combined Removal of n-heptane and CO using Plasma-catalytic Process

Combined Removal of n-heptane and CO using Plasma-catalytic Process

Catalytic nonthermal plasma reactor for the abatement of low concentrations of benzene

Gaseous phase benzene decomposition by non-thermal plasma coupled with nano titania catalyst

Contact Info

Product

Resources

About