A novel photocatalytic and photoelectrocatalytic system for …

The composite, as well as pristine BiVO4 and HKSUT-1 samples were used for oxidative desulfurization under catalytic, photocatalytic, and eletrophotocatalytic conditions. The best results were observed for the BiVO4@HKUST-1 composite under photocatalytic desulfurization.

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Biodesulfurization of Fossil Fuels: Analysis and Prospective

Optimization studies in BDS often focus on identifying the best pre-treatment methods, such as isolation techniques or desulfurization conditions. For mixtures, optimization involves determining the operating conditions of BDS to achieve the desired selectivity, while for pure substrates or lumped mixtures, the aim is to determine the ...

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Study on desulfurization mechanism of adsorbents …

The optimum desulfurization process conditions were found under the conditions of the hydration time was 3 h, moisture content was 15%, desulfurization temperature was 70 °C and initial concentration was 200 μL/L, and at this time the effective desulfurization time was 93.95 min, the maximum desulfurization efficiency was …

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Investigation on desulfurization and ground granulated …

Methods. In this study, the slags from desulfurization (De-S) and ground granulated blast furnace (GGBS) processes in the steel company waste were applied as the sorbent in CO 2 removal using a fluidized bed system. Various operating conditions were applied to determine the influence of operating parameters on sorbent performance.

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Investigation on desulfurization and ground granulated …

In this study, the slags from desulfurization (De-S) and ground granulated blast furnace (GGBS) processes in the steel company waste were applied as the sorbent in CO 2 removal using a fluidized bed system. Various operating conditions were applied to determine the influence of operating parameters on sorbent performance.

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The hydrogenation and direct desulfurization reaction …

We present density functional theory (DFT) calculations of reaction pathways for both the hydrogenation (HYD) and direct desulfurization (DDS) routes in the hydrodesulfurization (HDS) of thiophene over the different MoS 2 edge structures, which will dominate under typical HDS reaction conditions. Contrary to the generally accepted …

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Experimental study on the desulfurization and evaporation

Several studies have been conducted to assess the desulfurization and evaporation characteristics of lime slurry droplets in the SDA method. On the one hand, models have been developed in some studies to investigate the transformation of the heat mass of the flue gas/lime slurry droplets [4], [5], [6], [7].On the other hand, experimental …

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The performance of solid phosphoric acid catalysts and macroporous

1. Introduction. Sulfur present in fuels is a major cause of SO x air pollution and poisons noble metal catalysts irreversibly in automobiles. In order to protect the environment against SO x pollution, the demand for a lower sulfur content in transportation fuels has become more and more stringent. The European Union has issued regulations …

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V or Mn zeolite catalysts for the oxidative desulfurization of …

Oxidative desulfurization is an interesting sulfur-removal process for the petroleum industry because it uses mild reaction conditions. In this work, zeolites (ZSM-5, NaX, NaY, Beta and Mordenite) impregnated with 1% vanadium or manganese were used for the oxidation and extraction of dibenzothiophene (DBT) from a diesel load.

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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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Extraction desulfurization with mixed solvents of organic …

Extraction technology has the advantages of mild operating conditions, low energy consumption and recoverable extractant, and it is widely used for fuel oil desulfurization [2]. The selection of extractant is the key to extractive desulfurization technology, and the distribution coefficient and selectivity are the significant indicators of ...

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Flue Gas Desulfurization Gypsum

In the wet desulfurization process, starting from the process conditions, the operating parameters were improved and optimized, and the best process conditions were determined. This can promote the absorption of SO 2 and increase the desulfurization rate. Starting from the reactor, the reactors in the absorption section and oxidation …

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Simultaneous Desulfurization and Denitrification Using …

This research aims to determine the best conditions for preparing a combined desulfurization and denitri cation catalyst to provide a theoretical basis for the fi …

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Enhancement effect of nanofluids on the desulfurization …

The spectra of BmimCl, Fe-BmimCl, Fe-5MEA-BmimCl and NF@SiO 2-0.5% are shown in Fig. 1.As for the spectrum of BmimCl, the band at 1170 cm −1 could be assigned to the bending vibration of imidazole H–C–C and H–C–N. The peaks at 1381 cm −1 and 1464 cm −1 are caused by the vibration of methyl group. The band at 1568 cm …

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Deep and fast oxidative desulfurization of fuels using …

Extractive-catalytic oxidative desulfurization (ECOD) technology is a potential industrial application for attaining low-sulfur fuel oils. In this research, novel graphene oxide (GO)-based heterogeneous catalysts were synthesized by immobilization of different amounts of phosphotungstic acid H 3 PW 12 O 40 (HPW) on GO. The obtained …

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Combining Desulfurisation Gypsum and Polyacrylamide to …

The optimal treatment for achieving the best photosynthetic performance—measured by apparent quantum efficiency, maximum net photosynthetic …

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Preparation and SO2 capture kinetics of a DeSOx coating for …

Desulfurization conditions below 100 °C usually require materials with strong desulfurization activity and adsorption properties, ... The physical and chemical structure and characteristics of the composites exhibiting the best desulfurization performance were studied to inform the preparation process and technology of several …

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The effect of magnesium content and roasting process on …

The AY-110 min-Ca(OH) 2 sample still retained the best desulphurization performance with a permeation time of 158.3 min and a sulfur capacity of 142.44 mg/g at 150 °C. In comparison to the desulfurization test conducted without CO 2 atmosphere, the permeation time is reduced by 79.6 min and the sulfur capacity is decreased by 78.56 …

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Experiments for Simultaneous Desulfurization and …

The experimental research is carried out to study for simultaneous desulfurization and denitrification of flue gas using TiO 2 /ACF as photocatalyst. Desulfurization and denitrification tests have been performed with a self prepared TiO 2 /ACF photocatalyst in a self designed photocatalytic reactor. The best way to prepare TiO 2 photocatalyst has …

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Study on dry desulfurization performance of modified HNTs

When the ratio is 11.5:8.5 and 13:7, the desulfurization rate of the desulfurizer is the lowest, but the overall gap is not large, and there may be systematic experimental errors. When the ratio is 10:10, the desulfurization rate is the best, the cumulative desulfurization amount can reach 62.01 mg, and the desulfurization rate …

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Carrier flotation for desulfurization and deashing of difficult …

Under the optimum conditions, a fine (−38 μm) concentrate containing 8.3 % ash and 0.72 % total sulfur with a recovery of 81.0 % was obtained from a feed containing 16.3 % ash and 2.0 % total sulfur. ... and also analysis is 666 G. Ate ok et al. performed on the -38 pin size only. It is evident that the best results were obtained at the ...

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Simultaneous Desulfurization and Denitrification Using …

best conditions for preparing a combined desulfurization and denitrification catalyst to provide a theoretical basis for the synergistic removal of multiple pollutants in an electrostatic precipitator. 2. EXPERIMENTAL MATERIALS AND METHODS 2.1. ESP Model. As shown in Figure 1, the experimental ESP model consists of three discharge …

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Summary of research progress on industrial flue gas …

The best conditions for desulfurization were 8% H 2 O, an outlet temperature of 60–65 °C, and a C/S molar ratio of 80 [72]. C.Y. Chu et al. used an internal circulating …

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The desulfurization of coal tar pitch with potassium …

The oxidative desulfurization method under the KMnO 4-FeCl 3-methanol system was effective for the desulfurization of CTP. The optimal experimental conditions for the CTP desulfurization was as follows: 15 mL of KMnO 4 with a mass fraction of 15%, 0.2 g FeCl 3, 15 mL of methanol 20 min reaction time. Under the optimal condition …

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Utilization of iron-based waste derived from the biogas desulfurization

FeS originating from waste material in the biogas desulfurization process is a practically economic and efficient catalyst in SR-AOP systems for the degradation of emerging pollutants including antibiotics. Thus, activating PS with FeS has great potential considering its high added economic value. ... uses the best experimental conditions …

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Effect of Preparation Conditions on Desulfurization …

The results showed that with 5% Fe compound and 0.5% Ag compound as active components, under the conditions of 400°C calcination temperature and 4.5 h calcination time, the attapulgite ...

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The Integration technology of desulfurization, denitration …

The stricter "Standard for Discharge of Pollutants from coking chemical industry" was introduced. An integration settlement scheme of flue gas desulfurization, denitration and waste heat recovery was put forward. The proprietary core technologies, such as denitration, COG desulfurization and radial heat pipe boiler were researched.

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A review of advanced methods for ultra-deep desulfurization …

Journal of Environmental Chemical Engineering. Volume 11, Issue 1, February 2023, 108997. A review of advanced methods for ultra-deep desulfurization …

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