Study on the ammonia emission characteristics in an ammonia-based WFGD system

Huang, Rongting; Hao, W.; Yang, Linjun

doi:10.1016/j.cej.2019.122257

Cited by 29 publications

(14 citation statements)

References 20 publications

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“…The furnace exhaust gases were directed to a scrubber system filled with 0.1 M sulfuric acid. The amount of ammonia absorbed in this way was analyzed using the Nessler method [26][27][28]. Studies have shown that as the temperature increases, the amount of ammonia emitted decreases to reach the highest value at 400 • C. In the case of biomass, namely rye straw at 400 • C, ammonia emissions were at the level of 12 mg/g (Figure 16).…”

Section: Resultsmentioning

confidence: 99%

Smog Episodes in Poland

Wielgosiński

Czerwińska

2020

Atmosphere

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The phenomenon of above-average air pollution, i.e., smog, in urban areas is known. Two types of smog have been described in the literature: London and Los Angeles smog. They differ in the conditions of formation and areas of occurrence. In recent years, the phenomenon of smog has also been observed in Poland, where the main reason for poor air quality is exceeding the permissible PM10 concentrations. The main source of particulate matter emissions in Poland is the so-called “low emission”, i.e., released by emitters up to 40 m high, mainly from domestic boilers and traffic. Based on the data from the environmental protection inspection, an analysis was carried out of the impact of atmospheric factors, such as atmospheric pressure and air temperature, on air pollution caused by particulate matter in Poland. Next, data concerning the chemical composition of PM10 particulate matter in Poland was analyzed. In the next stage, tests were carried out on ammonia emissions from biomass and coal combustion processes to determine the source of ammonium ions as a component of particulate matter. The results of analyzes and research allowed us to formulate the thesis about the existence of a specific type of smog called “Polish smog” and determine the conditions for its formation.

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Section: Resultsmentioning

confidence: 99%

Smog Episodes in Poland

Wielgosiński

Czerwińska

2020

Atmosphere

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“…Long-term exposure to NH 3 could burn the skin, eyes and mucous membranes of respiratory organs, which can even lead to death when humans inhale too much NH 3 at one time. 5 Hence, it is essential to achieve rapid and accurate detection of NH 3 . With the fast growth of Internet of Things (IoT) technology, the sensing unit is gradually developing in the direction of wireless, portability, miniaturization, multifunction and low power consumption.…”

Section: Introductionmentioning

confidence: 99%

An eco-friendly gelatin based triboelectric nanogenerator for a self-powered PANI nanorod/NiCo₂O₄ nanosphere ammonia gas sensor

Zhang

Yang

et al. 2022

J. Mater. Chem. A

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“…NH 3 contributes to the acidification of soil and water due to its deposition, eutrophication in aquatic ecosystems and the excess of nitrogen. It also participates in the formation of acid rains and photochemical smog or ozone depletion [ 2 , 3 , 4 ]. In the human body, it affects the respiratory tract, lung functions, causes eye and skin irritation, and at higher doses, can cause death [ 5 , 6 ].…”

Section: Introductionmentioning

confidence: 99%

Catalytic Oxidation of Ammonia over Cerium-Modified Copper Aluminium Zinc Mixed Oxides

et al. 2021

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Copper-containing mixed metal oxides are one of the most promising catalysts of selective catalytic oxidation of ammonia. These materials are characterized by high catalytic efficiency; however, process selectivity to dinitrogen is still an open challenge. The set of Cu-Zn-Al-O and Ce/Cu-Zn-Al-O mixed metal oxides were tested as catalysts of selective catalytic oxidation of ammonia. At the low-temperature range, from 250 °C up to 350 °C, materials show high catalytic activity and relatively high selectivity to dinitrogen. Samples with the highest Cu loading 12 and 15 mol.% of total cation content were found to be the most active materials. Additional sample modification by wet impregnation of cerium (8 wt.%) improves catalytic efficiency, especially N2 selectivity. The comparison of catalytic tests with results of physicochemical characterization allows connecting the catalysts efficiency with the form and distribution of CuO on the samples’ surface. The bulk-like well-developed phases were associated with sample activity, while the dispersed CuO phases with dinitrogen selectivity. Material characterization included phase composition analysis (X-ray powder diffraction, UV-Vis diffuse reflectance spectroscopy), determination of textural properties (low-temperature N2 sorption, scanning electron microscopy) and sample reducibility analysis (H2 temperature-programmed reduction).

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Study on the ammonia emission characteristics in an ammonia-based WFGD system

Cited by 29 publications

References 20 publications

Smog Episodes in Poland

Smog Episodes in Poland

An eco-friendly gelatin based triboelectric nanogenerator for a self-powered PANI nanorod/NiCo₂O₄ nanosphere ammonia gas sensor

Catalytic Oxidation of Ammonia over Cerium-Modified Copper Aluminium Zinc Mixed Oxides

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Study on the ammonia emission characteristics in an ammonia-based WFGD system

Cited by 29 publications

References 20 publications

Smog Episodes in Poland

Smog Episodes in Poland

An eco-friendly gelatin based triboelectric nanogenerator for a self-powered PANI nanorod/NiCo2O4 nanosphere ammonia gas sensor

Catalytic Oxidation of Ammonia over Cerium-Modified Copper Aluminium Zinc Mixed Oxides

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Product

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An eco-friendly gelatin based triboelectric nanogenerator for a self-powered PANI nanorod/NiCo₂O₄ nanosphere ammonia gas sensor