Promotion of Nonthermal Plasma on the SO2 and H2O Tolerance of Co–In/Zeolites for the Catalytic Reduction of NO x by C3H8 at Low Temperature

Pan, Hua; Su, Qingfa; Wei, Jianwen; Jian, Yongxin

doi:10.1007/s11090-015-9633-x

Cited by 5 publications

(3 citation statements)

References 48 publications

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“…As is summarized in Figure c, compared with other types of carbon materials, SO 2 adsorption capacity of these NPCs adsorbents is higher than that of others. In addition, compared with other type of materials, such as zeolites, , MOFs, and ionic liquids, which are state of the art materials for SO 2 adsorption, NPCs adsorbents in this work also show a higher SO 2 adsorption capacity.…”

Section: Resultsmentioning

confidence: 85%

“…As is summarized in Figure 7c, compared with other types of carbon materials, SO 2 adsorption capacity of these NPCs adsorbents is higher than that of others. In addition, compared with other type of materials, such as zeolites, 64,65 MOFs, 66 and ionic liquids, 67 which are state of the art materials for SO 2 adsorption, NPCs adsorbents in this work also show a higher SO 2 adsorption capacity. On the basis of the above analysis, we selected NPC-1 with the highest SO 2 removal capacity as a representative to study the influence of different gas compositions (e.g., N 2 , O 2 , and H 2 O) on SO 2 adsorption behavior at 363 K. On the one hand (Figure 7d), without any other gas addition, the separate SO 2 adsorption rate drops sharply to varying degrees until it drops to the lowest value.…”

Section: Crystal Growth and Designmentioning

confidence: 86%

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N-Doped Porous Carbon Derived by Direct Carbonization of Metal–Organic Complexes Crystal Materials for SO₂ Adsorption

Wang

Fan

et al. 2019

Crystal Growth & Design

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Three metal–organic complexes crystal materials (MOC-1, MOC-2, and MOC-3) have been hydrothermally synthesized. Driven by C–H···O and C–H···Cl hydrogen bonding interactions, MOC-1, MOC-2, and MOC-3 displayed supramolecular metal–organic frameworks with pcu, bnn, dia topology, respectively. Subsequently, N-doped porous carbons (NPCs) were obtained from carbonization of three metal–organic complexes (MOCs) crystal materials. The resulting NPCs were multiwalled graphite type structures, with high Brunauer, Emmett and Teller surface area (3186.5 m2 g–1), pore volume (2.16 cm3 g–1), and nitrogen content (19.6%), and the N atoms of the MOC precursors were mostly retained. Especially, benefiting from the largest surface area, micropore structure, more disordered stacks of carbon layers, and the largest displacement distance of D band and G band, NPCs showed a significant amount of SO2 adsorption capacity, up to 156.72 mg g–1. The SO2 adsorption capacity increased remarkably over 12 times with the addition of O2 and H2O together. Theoretical calculations indicated that N doping into N-doped porous carbons remodels the local electronic density as well as electrostatic surface potential, enhancing the SO2 adsorption. This work demonstrates a clear and significant advance for preparing N-doped porous carbon materials from MOCs for effective SO2 adsorption.

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Section: Resultsmentioning

confidence: 85%

Section: Crystal Growth and Designmentioning

confidence: 86%

N-Doped Porous Carbon Derived by Direct Carbonization of Metal–Organic Complexes Crystal Materials for SO₂ Adsorption

Wang

Fan

et al. 2019

Crystal Growth & Design

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“…Using Ba & Cu (C 2 H 2 O 3 ) 2 as catalyst, NO was oxidized to NO 2 in plasma, while hydrocarbon was oxidized to active intermediate species CO, which eventually reduced NO x to N 2 . Pan et al [261] found that the conversion of NO x as well as the water and sulfur resistance of C 3 H 8 -SCR plasma increased significantly when dielectric barrier plasma acted simultaneously. Wang et al [262,263] found that the denitrification rate was very low when the plasma acted alone.…”

Section: Plasma Concerted Catalysismentioning

confidence: 99%

A Critical Review of Recent Progress and Perspective in Practical Denitration Application

Liu

et al. 2019

Catalysts

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Nitrogen oxides (NO x ) represent one of the main sources of haze and pollution of the atmosphere as well as the causes of photochemical smog and acid rain. Furthermore, it poses a serious threat to human health. With the increasing emission of NO x , it is urgent to control NO x . According to the different mechanisms of NO x removal methods, this paper elaborated on the adsorption method represented by activated carbon adsorption, analyzed the oxidation method represented by Fenton oxidation, discussed the reduction method represented by selective catalytic reduction, and summarized the plasma method represented by plasma-modified catalyst to remove NO x . At the same time, the current research status and existing problems of different NO x removal technologies were revealed and the future development prospects were forecasted.Catalysts 2019, 9, 771 2 of 39 adsorption, oxidation, reduction, and plasma methods. In view of these attentive findings, adsorption method uses recyclable solid adsorbent material to adsorb NO x from flue gas through microporous structure, remarkably, environmentally friendly, no secondary pollution, and energy-saving and -efficient features make it stand out [18][19][20]. The oxidation process is a method that oxidizes NO into NO 2 or N 2 O 3 with high solubility under the action of an oxidant that is then absorbed by water or alkali solution. The process is simple and cost-saving, and is widely used in the wet flue gas denitrification process with relatively low cost and high removal efficiency of NO x ; except that the oxidized NO and SO 2 can be removed simultaneously to produce high value-added products [21][22][23]. The reduction method has the characteristics of high efficiency, cleanliness, and mildness; NO x removal can be realized at low temperature at present [24][25][26]. The plasma method is used to modify the surface of the catalyst, the dispersion of active species can be improved by plasma treatment, and the stability and low temperature activity of catalyst can be improved [27,28].Seldom, if ever, does a comprehensive article to introduce the current situation and treatment methods of removing NO x . In this paper, we tried to renovate, classify, and summarize the significant perspectives and most relevant findings reported in recent research articles and earlier reviews generalizing the mechanism analysis and research progress of NO x removal by adsorption, oxidation, reduction, and plasma methods, which can provide means for promoting the technological progress of pollution prevention, maintaining healthy development of factories continuously, studying the methods of removing NO x deeply, and mastering different technologies of removing NO x , as well as providing guidance for controlling the emission of NO x from motor vehicles such as diesel, gasoline, and so on. In order to improve the environmental quality and save the ecological environment, this paper further provides a convenient, low-cost, efficient, and economic guidance line.

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Conventional and New Materials for Selective Catalytic Reduction (SCR) of NO_x

2018

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It is important and necessary to minimize NOx pollutant released into the atmosphere owing to the harmful environmental and health effects brought by NOx emission. Many techniques are available to reduce NOx emission, among of them, Selective Catalytic Reduction (SCR) is considered as one of the most efficient techniques. Conventional SCR systems involve ammonia (NH3) or urea (CO(NH2)2) as a reducing reagent to reduce NOx to N2 and H2O at high temperatures 300–400 °C. Research on developing novel low‐temperature catalysts (LTC) for SCR of NOx still remains of interest. This work reviewed and compared conventional SCR catalysts with newly emerging Metal‐Organic‐Frame (MOFs) materials as potential alternatives for SCR catalysts.

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Promotion of Nonthermal Plasma on the SO2 and H2O Tolerance of Co–In/Zeolites for the Catalytic Reduction of NO x by C3H8 at Low Temperature

Abstract: Effects of nonthermal plasma (NTP) on the selective catalytic reduction of NO x by C 3 H 8 (C 3 H 8 -SCR) over Co-In/zeolites were investigated in the presence of SO 2 and H 2

Cited by 5 publications

References 48 publications

N-Doped Porous Carbon Derived by Direct Carbonization of Metal–Organic Complexes Crystal Materials for SO₂ Adsorption

N-Doped Porous Carbon Derived by Direct Carbonization of Metal–Organic Complexes Crystal Materials for SO₂ Adsorption

A Critical Review of Recent Progress and Perspective in Practical Denitration Application

Conventional and New Materials for Selective Catalytic Reduction (SCR) of NO_x

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Promotion of Nonthermal Plasma on the SO2 and H2O Tolerance of Co–In/Zeolites for the Catalytic Reduction of NO x by C3H8 at Low Temperature

Abstract: Effects of nonthermal plasma (NTP) on the selective catalytic reduction of NO x by C 3 H 8 (C 3 H 8 -SCR) over Co-In/zeolites were investigated in the presence of SO 2 and H 2

Cited by 5 publications

References 48 publications

N-Doped Porous Carbon Derived by Direct Carbonization of Metal–Organic Complexes Crystal Materials for SO2 Adsorption

N-Doped Porous Carbon Derived by Direct Carbonization of Metal–Organic Complexes Crystal Materials for SO2 Adsorption

A Critical Review of Recent Progress and Perspective in Practical Denitration Application

Conventional and New Materials for Selective Catalytic Reduction (SCR) of NOx

Contact Info

Product

Resources

About

N-Doped Porous Carbon Derived by Direct Carbonization of Metal–Organic Complexes Crystal Materials for SO₂ Adsorption

N-Doped Porous Carbon Derived by Direct Carbonization of Metal–Organic Complexes Crystal Materials for SO₂ Adsorption

Conventional and New Materials for Selective Catalytic Reduction (SCR) of NO_x