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Process flow chart of desulfurization and denitrification
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Flue Gas Simultaneous Desulfurization and Denitrification …
Simultaneous desulfurization and denitrification removes SO2 and NOx from flue gas in one unit and only uses one absorbent. Using urea as absorbent removing SO2 and NOx in semi-dry spouted bed has the enormous developmental potential and wide foreground for it overcomes two shortages of wet process such as the amount of urea is …
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Rapid start of high-concentration denitrification and desulfurization …
Anaerobic denitrification requires a large amount of carbon source, and it is easy to enrich products such as nitrite and nitrous oxide in the process. Using denitrifying desulphurisation bacteria to start the reactor can not only recycle the sulphur in the wastewater without using too much organic carbon source, but also use the ...
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Experimental study on integrated desulfurization and denitrification …
Experimental study on integrated desulfurization and denitrification of low-temperature flue gas by oxidation method
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Thermodynamics Analysis of Integrated Process for …
The direction and limitation of desulfurization and denitrification reaction were analyzed by calculating thermodynamic functions, and the reaction mechanism of desulfurizati on and denitration was proposed. The pollutant removal efficiencies were deduced by the equilibrium partial pressure of SO 2 and NO at different reaction …
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Enhancing simultaneous desulfurization and denitrification …
Enhancing simultaneous desulfurization and denitrification efficiency of cement kiln exhaust gas via co-catalytic Fenton oxidation process October 2023 Journal of Cleaner Production 426(19):139105
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Economic and carbon emission analysis of two typical denitrification …
Denitrification system operational flow chart. (a) Activated carbon adsorption system; (b) SCR system. 2.2. ... 2014), 80 % of China's operating iron and steel sinter desulfurization plants use the WFGD process, with the limestone-gypsum method constitution making up the majority (59.8 %).
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Study on Photocatalytic Desulfurization and …
Carbon nanotubes are a promising adsorbent for desulfurization and denitrification. In this paper, Cu- and Cr-doped TiO2 supported by multi-walled carbon nanotubes (MWCNTs/Cu-Cr-TiO2) …
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Chloride Ion Removal from the Wet Flue Gas Desulfurization …
The desulfurization and denitrification wastewater (DDW) from the wet flue gas treatment project is difficult to be treated and recycled because of high chloride ion (Cl −) concentration.Cl − can cause equipment and piping corrosion. However, there is a lack of cost-effective treatment technologies for the removal of Cl − from the DDW. In …
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Simultaneous desulfurization and denitrification through …
The experimental results indicated that the desulfurization process was mainly controlled by the sodium humate (HA-Na) absorption, while the denitrification was significantly affected by various ...
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Bio-desulfurization and denitrification by anaerobic-anoxic process …
Bio-desulfurization and denitrification by anaerobic-anoxic process for the treatment of wastewater from flue gas washing Water Sci Technol. 2013;67(9) :2042-9. doi ... In this study, a novel anaerobic-anoxic process was built up for the treatment of this washing wastewater. Nitrate was reduced to nitrogen by denitrifying bacteria.
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Simultaneous desulfurization and denitrification of flue gas …
This research offers a new flue-gas integrated desulfurization and denitrification technology. • The mass transfer area of the gas-liquid phase is increased …
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Comprehensive evaluation of flue gas desulfurization and
Abstract. Post-combustion flue gas desulfurization and denitrification technologies are essential in achieving the full compliance of fine particulate matter …
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GeoChip-based analysis of the microbial community
The elemental sulfur (S(0)) recovery was evaluated in the presence of nitrate in two development models of simultaneous desulfurization and denitrification (SDD) process.
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Integrated simultaneous desulfurization and denitrification (ISDD
However, it may not be possible to treat sulfate and nitrate separately in actual industrial wastewater, therefore, the integrated simultaneous desulfurization and denitrification (ISDD) process ...
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Engineering application of desulfurization and …
Therefore, the desulfurization and denitrification integrated purification technology for activated coke has excellent environmental benefits. The integrated process flow chart …
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Experimental study on integrated desulfurization and …
This novel approach should preserve the low-temperature catalytic activity of denitrification catalysts, effectively expanding the deep load adjustment capabilities of …
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Desulfurization and denitrification experiments in SDA …
An integrated and effective method to realize simultaneous desulfurization and denitrification by the Spray Dryer Absorption (SDA) method combined with the NaClO 2 was carried out in this paper. The optimum conditions on desulfurization were verified, as well as the cooperative effect and removal mechanism between SO 2 and NO was …
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Simultaneous Desulfurization and Denitrification from Flue …
An innovative semidry process has been developed to simultaneously remove NO and SO2 from flue gas. According to the conditions of the flue gas circulating fluidized bed (CFB) system, ferrate(VI) absorbent was prepared and added to humidified water, and the effects of the various influencing factors, such as ferrate(VI) …
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Simultaneous Desulfurization and Denitrification Using …
We prepared the La(6%)–V(7%)–ZSM-5 desulfurization catalyst, the Ce(8%)–Cu(8%)–ZSM-5 denitrification catalyst, and the …
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Desulfurization of Diesel Using Ionic Liquids: Process …
desulfurization technologies employed in refineries has intensified. In today's refineries, hydrotreatment is the conventional method used for the removal of sulfur and its derivatives via the process commonly referred to as hydrodesulfurization (HDS).5 It is a catalytic process that uses cobalt molybdenum or nickel
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Desulfurization of Diesel Using Ionic Liquids: Process …
Sulfur dioxide emissions from fossil fuel combustion have been known to cause detrimental health and environmental effects. The currently used hydrodesulfurization (HDS) method employed by refineries has several drawbacks, such as excessive hydrogen consumption, high energy demand, and inability to remove complex organosulfur …
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Research progress of flue gas desulfurization and …
The study of CuO adsorption method [27] began in the 1980s, and the process of simultaneous desulfurization and denitrification is divided into two steps. The first step …
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Research on the preparations and properties of fertilizer …
The integrated process for the simultaneous desulfurization and denitrification using H2O2 solution assisted with additive as well as microwave was presented, and researched by chemical dynamics ...
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An Innovative Process of Simultaneous Desulfurization and
The experimental results indicated that both the sulfide concentration and the ratio of S2−/NO3 − in the influent are key factors and their suitable levels are suggested to be controlled less than 300 mg/L and 5/3–5/2, respectively, to achieve a high sulfur conversion degree. Abstract Thiobacillus denitrificans, a species of autotrophic …
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Simultaneous desulfurization and denitrification by electrodialysis
Desulfurization and denitrification technology is not mature yet [14], [17], and most of them are still in the stage of laboratory research. Compared with traditional desulfurization and denitrification technology, there are also some problems, including: The denitrification efficiency is generally low [18]. ... The experiment process of ...
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Carbon consumption of activated coke in the thermal …
DOI: 10.1016/J.JCLEPRO.2019.04.225 Corpus ID: 159217596; Carbon consumption of activated coke in the thermal regeneration process for flue gas desulfurization and denitrification
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Comprehensive evaluation of flue gas desulfurization …
Water-soluble ions . Flue gas . Desulfurization . Denitrification . Technology evaluation .Uncertainanalysis Introduction Since the "Eleventh Five-Year Plan" period, the construction of flue gas desulfurization and denitrification facilities for coal-fired power plants have been accelerated to control the emissions of sulfur dioxide (SO
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Towards simultaneously removing nitrogen and sulfur by a novel process
The sulfur autotrophic denitrification (SADN) process is an organic-free denitrification process that utilizes reduced inorganic sulfur compounds (RISCs) as the electron donor for nitrate reduction.
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Research on Integrated Technology of Desulphurization, …
Denitrification Reactor: The selective catalytic reduction (SCR) method of denitration selected in this paper is the most mature and the most efficient method for denitration …
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Carbon consumption of activated coke in the thermal …
Finally, the desulfurization-regeneration-denitration test (imitated activated coke simultaneous desulfurization and denitrification process) was carried out, and the results confirm that the prepared PEG/Ti catalyst could be regenerated for denitration after desulfurization. We expect that this work can provide some guidance for the design of ...
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Merely inoculating anammox sludge to achieve the start-up …
The current biological processes for simultaneous nitrogen and sulfide removal, like sulfide-based autotrophic denitrification process and sulfur-oxidizing bacteria driven autotrophic denitrification process, were mainly focused on sulfide and nitrite (or nitrate) removal, but the simultaneous removal of ammonia, nitrite and sulfide …
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Integrated simultaneous desulfurization and denitrification (ISDD
Separate treatment units would increase treatment costs. Single reactor with both SR and SO, or termed the integrated simultaneous desulfurization and denitrification (ISDD) process, is welcome in applications (Sahinkaya et al., 2011, Ontiveros-Valencia et al., 2012, Zhao et al., 2013, Jiang et al., 2013, Xu et al., 2013a).
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Photocatalytic Process of Simultaneous Desulfurization …
TiO2 nanoparticles were successfully fabricated on electrospun polyacrylonitrile (PAN) nanofibers via the coupling of electrospinning and hydrothermal pathway. A straightforward photocatalysis oxidation process has been developed for simultaneous desulfurization and denitrification of flue gas using the TiO2–PAN photocatalyst. Also, the influences …
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Microwave Catalytic Desulfurization and Denitrification …
Simultaneous desulfurization and denitrification has been investigated using a microwave reactor packed with ammonium bicarbonate (NH4HCO3) and Fe/Ca-5A zeolite or Fe/Ca-5A zeolite only. The experimental results showed that 95.6% of sulfur dioxide (SO2) and 97.3% of nitrogen oxides (NOx) could be removed in the microwave …
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The roles of red mud as desulfurization and denitrification in …
This paper introduces the principle of desulfurization technology, denitrification technology and red mud in desulfurization technology and …
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Enhancing simultaneous desulfurization and denitrification …
Traditional Fenton reaction can hardly achieve the simultaneous desulfurization (de-SO 2) and denitrification (de-NO x) for the cement kiln exhaust gas, due to the low production of free radicals as the limited Fe 2+ /Fe 3+ cycle. Herein, an enhanced Fenton oxidation process was developed to remove SO 2 and NO x …