Ni supported on activated carbon as catalyst for flue gas desulfurization

Chu, Ying‐Hao; Guo, Juan; Liang, Juan; Zhang, QiangBo; Yin, Hao

doi:10.1007/s11426-010-0087-y

Cited by 13 publications

(8 citation statements)

References 29 publications

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“…3b, c, d. The high resolution of C1s spectrum could be fitted into three individual peaks located at around 284, 285, and 286 eV, corresponding to the C-C, C-N, and C-O binding, respectively [23]. The contents of different functional groups from XPS spectrum after peak fitting are listed in Table 2.…”

Section: Surface Chemistry Of Cigarette Butt-derived Activated Carbonsmentioning

confidence: 99%

Preparation of discarded cigarette butt-derived activated carbon and its decolorization for waste edible oils

Luo

et al. 2021

Biomass Conv. Bioref.

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In order to improve the high added values and solve the environmental pollution problems of the waste edible oil (EO) and discarded cigarette butt (CB), the CB-derived activated carbons (ACs) were prepared by H 3 PO 4 , KOH, and CO 2 activation methods and used as an adsorbent for the decolorization of waste EO. The CB-AC@H 3 PO 4 prepared by H 3 PO 4 activation method had the high surface area of 1423 m 2 /g, oxygen contents of 11.24%, and yield of 14.11%, and exhibited better decolorization performance for EO than the CB-AC@KOH and CB-AC@CO 2 . The optimal decolorization process parameters of CB-AC@H 3 PO 4 based on the orthogonal experimental results were the AC contents of 8%, the decolorization temperature of 90 °C, and the decolorization time of 30 min, which resulted in the corresponding decolorization rate of 83%. Therefore, these provided one application case for turning waste into wealth, energy conservation, and emission reduction.

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Section: Surface Chemistry Of Cigarette Butt-derived Activated Carbonsmentioning

confidence: 99%

Preparation of discarded cigarette butt-derived activated carbon and its decolorization for waste edible oils

Luo

et al. 2021

Biomass Conv. Bioref.

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“…The active sites activated by NO molecules may be related to the Cu species, 20 and the active sites of CuO show easy redox effects with reactants. 21,22 The good redox performance, sufficient surface oxygen vacancies and high oxygen storage/release capabilities of NiO have attracted special attention, 23,24 and it is also widely used in CO-SCR denitration catalysts. In previous works, 25,26 it was found that in the process of copper-nickel coordinated loading, in addition to affecting the selectivity and denitrication activity of NO gas, Cu can prevent the formation of carbon deposits and the sintering of Ni nanoparticles and reduce the reduction temperature of NiO.…”

Section: Introductionmentioning

confidence: 99%

Influence of cerium doping on Cu–Ni/activated carbon low-temperature CO-SCR denitration catalysts

et al. 2021

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“…Spassova et al have performed research on the denitration performance of copper-based catalyst CO-SCR with Ce and Co as promoters and concluded that there was a catalytic synergy between the active component Cu and the promoter, which was beneficial to improving the denitration activity of the catalyst. Because NiO has good redox performance, sufficient surface oxygen vacancies (SOV), and high oxygen storage/release capabilities, it has attracted special attention, , and it is widely used in the CO + NO reaction. This occurs because oxygen (Oa), which is required for the denitration reaction, is generated in the Ni 3+ /Ni 2+ redox cycle .…”

Section: Introductionmentioning

confidence: 99%

Cu–Ni/AC Catalyst for Low-Temperature CO-Selective Catalytic Denitration Mechanism

Wang

Huang

Shi

et al. 2021

Ind. Eng. Chem. Res.

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To study the preparation principle of Cu−Ni/AC catalysts and the mechanism of low-temperature CO-selective catalytic reduction (SCR) denitration, Cu−Ni/AC catalysts with different metal loadings were prepared by the isometric ultrasonic impregnation method. It was determined that the 10Cu−4Ni/AC catalyst had the best CO-SCR low-temperature denitration rate of 94.2% in 5% O 2 and at the denitration temperature of 150 °C. The characterization of Cu−Ni/AC by scanning electron microscopy (SEM), Brunauer−Emmett−Teller (BET), Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and CO temperature-programmed desorption (TPD) confirmed that the copper−nickel-coordinated loading resulted in the Cu−Ni/AC catalyst having a rich pore structure and a large number of acidic oxygen-containing functional groups. The spherical particles of copper−nickel oxide with good thermal stability were highly dispersed on the AC surface, allowing the copper and nickel metal ions to enter the graphite or graphite-like microcrystalline structure and split into smaller irregular graphene fragments, thus forming a large number of denitration reaction units on the AC surface. The oxidation−reduction reaction (Cu 2+ + Ni 2+ → Cu + + Ni 3+ ) between copper and nickel metal oxides produced active oxygen vacancies, which increased the amount of oxygen (Oa) adsorbed on the surface, especially acidic adsorption sites on the surface; this promoted the higher adsorption of reaction gases (CO, O 2 , NO), leading to the conversion of a standard SCR reaction to a fast SCR reaction, which, in turn, improved the denitration efficiency. The CO-SCR denitrification mechanism model of the Cu−Ni/AC catalyst was discovered and established according to the experimental results and theoretical analysis. The related research provides a reference for carbon-based catalysts for low-temperature CO-SCR denitration.

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Ni supported on activated carbon as catalyst for flue gas desulfurization

Cited by 13 publications

References 29 publications

Preparation of discarded cigarette butt-derived activated carbon and its decolorization for waste edible oils

Preparation of discarded cigarette butt-derived activated carbon and its decolorization for waste edible oils

Influence of cerium doping on Cu–Ni/activated carbon low-temperature CO-SCR denitration catalysts

Cu–Ni/AC Catalyst for Low-Temperature CO-Selective Catalytic Denitration Mechanism

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