desulfurization absorbents
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desulfurization absorbents

Desulfurization behavior of Ca-based absorbents

2001-10-11  Our present study aimed at obtaining more detailed information on desulfurization behavior of H 2 S or SO 2 with Ca-based absorbents of limestone and dolomite under a periodically changing condition, and comparing their desulfurization performance based on the quantitative solid analyses of samples collected after the experiments as well as the variation in flue-gas composition. Furthermore,

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Desulfurization of natural gas using industrial

Desulfurization of natural gas using industrial absorbents based on zinc oxide

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Zinc Oxide Desulfurization Adsorbent,Industrial ...

2020-11-1  Zinc Oxide Desulfurization Adsorbent, developed by the Northwest Research Institute of Chemical Industry, is applicable to desulfurization of residue cracking

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3D printed ZnO absorbent for desulfurization of

2017-12-14  The desulfurization effect of the catalyst/absorbent were investigated on simultaneously reforming of CHt to H 2 at 800 °C. After reforming by the catalysts, the concentrations of H 2 S of 38.5 ppm in the raw syngas were reduced to a level of 0.9 ppm. Published in: 2017 IEEE/SICE International Symposium on System Integration (SII)

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Evaluation of Some Regenerate Sulfur Dioxide Absorbents ...

2018-6-29  water were measured for possible application as absorbents for re-generable flue gas desulfurization systems. Results were used to estimate the steam rate and principal costs of processes using 11 of the absorbents. For sulfur dioxide absorption followed by indirect steam stripping, a 9.75 % ethylenediamine solution had the lowest steam rate.

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Desulfurization performance of fly ash and CaCO3

2017-1-1  Hence, the desulfurization rate of the compound absorbent is very low. The maximum desulfurization rates of the compound absorbent are 74.59%, 79.05%, and 81.82% respectively which correspond to the SO 2 concentrations of 1000 mg/m 3, 5000 mg/m 3 and 10,000 mg/m 3 at the entrance. The desulfurization rate decreases as the amount of fly ash.

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Materials Free Full-Text Desulfurization and ...

The desulfurization and denitrification absorbent currently studied in the experiment is generally used at a lower temperature around 100 °C, and usually plays a role in humidified flue gas environments and is not suitable for cement processes.

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Removal of sulfur dioxide using absorbent

2005-6-1  In order to elucidate the role O 2 and NO in the desulfurization reaction, the spent absorbent after being subjected to a series of desulfurization reaction under different reaction conditions was tested with Fourier transformed infra red (FTIR) spectroscopy to identify the presence of specific functional groups in the spent absorbents. The spent absorbent was initially mixed with potassium bromide (KBr)

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New nanostructured sorbents for desulfurization of

2014-1-30  Desulfurization of natural gas is achieved commercially by absorption with liquid amine solutions. Adsorption could potentially replace the solvent extraction process, particularly for the emerging shale gas wells with production rates that are generally lower than that from the large conventional reservoirs, if a superior adsorbent (sorbent) is developed. In this review, we focus ...

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Deep desulfurization of natural gas by a commercial

2018-11-1  One of the most widely used adsorbent for gas desulfurization processes is zinc oxide (ZnO) (Atimtay, 2001; Novochinskii et al., 2004). ZnO, as a suitable adsorbent, reacts with hydrogen sulfide in a wide range of temperatures and pressures (Gibson and Harrison, 1980).

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Modified zinc oxide absorbents for low-temperature

Modified zinc oxide absorbents for low-temperature gas desulfurisation . Thomas Baird, Patrick J. Denny, Robert Hoyle, Fiona McMonagle, Diane Stirling and James Tweedy Abstract. The hydrogen sulfide absorption capacity of zinc oxide doped with first-row transtion ...

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Removal of sulfur dioxide using absorbent

2005-6-1  In order to elucidate the role O 2 and NO in the desulfurization reaction, the absorbent synthesized from coal fly ash and CaO was tested for its desulfurization activity in four series of experimental runs. Fig. 2 shows the breakthrough curves of the four experimental runs. The spent absorbents after the desulfurization activity were tested using FTIR analysis and the spectrum are

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Desulfurization and Denitrification Performance of ...

2020-12-25  Dry-process absorbents include calcium-based absorbents, calcium-based fly ash absorbents, natural manganese ore, activated carbon, activated carbon impregnated catalysts and metal catalysts. In order to synthesize an absorbent with high desulfurization and denitrification activity, silicon raw materials usually need to be activated by CaO or ...

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Study on the desulfurization performance of iron ...

2021-3-16  The absorbents were characterized by Fourier transform infrared spectroscopy. The iron/ethanolamine/DES system showed a significantly enhanced desulfurization performance compared with DES solution of iron or alcohol amine separately. Besides, the absorbents showed relatively stable desulfurization performance, which could keep a high H2S ...

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New nanostructured sorbents for desulfurization of

2014-1-30  Desulfurization of natural gas is achieved commercially by absorption with liquid amine solutions. Adsorption could potentially replace the solvent extraction process, particularly for the emerging shale gas wells with production rates that are generally lower than that from the large conventional reservoirs, if a superior adsorbent (sorbent) is developed. In this review, we focus ...

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Evaluation of Some Regenerate Sulfur Dioxide

2018-6-29  The vapor pressure of sulfur dioxide above aqueous solutions of citric acid, glycolic acid, 1-methyl-2-pyrrolidone, and ethylenediamine, as well as above pure tri-n-butyl phosphate, 1-methyl-2-pyrrolidone, and water were measured for possible application as absorbents for regenerable flue gas desulfurization systems.

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Flue Gas Desulfurization EKATO

Because the absorbents lime and ammonia are readily available and the product of the wet process is easily used or disposed of, this process is now employed by over 90% of all desulfurization plants worldwide. The picture provides a simplified flowchart of such a plant, in this case the two-stage KRC flue gas desulfurization process.

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Desulfurization of Gasoline using Molecularly

2008-12-3  For desulfurization of gasoline, novel chitosan-based molecularly imprinted polymer (MIP) was prepared by cross-linking chitosan with epichlorohydrin in the presence of dibenzothiophene (DBT) as the template. The influence of cross-linking ratio on the specific adsorption was evaluated. The effects of the types and the amounts of porogen on selectivity of the chitosan MIP were also examined.

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Article Metrics Desulfurization performance of sulfur ...

1 天前  The products obtained from the desulfurization operation were characterized using FT-IR and TGA analyses. Calcium sulfate hemihydrate was obtained for all the combinations of absorbents without and with the surfactant additives, except in the case where Teepol was added to the hydrated lime slurry and gypsum was obtained as the FGD product.

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Reactive Adsorption Desulfurization_百度文库

2016-11-10  会员中心 VIP福利社 VIP免费专区 VIP专属特权

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Metal Organic Frameworks as Desulfurization

Ultradeep desulfurization of fuels is a method of enormous demand due to the generation of harmful compounds during the burning of sulfur-containing fuels, which are a major source of environmental pollution. Among the various desulfurization methods in application, adsorptive desulfurization (ADS) has low energy demand and is feasible to be employed at ambient conditions without the addition ...

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Desulfurization and Denitrification Performance of ...

2020-12-25  Dry-process absorbents include calcium-based absorbents, calcium-based fly ash absorbents, natural manganese ore, activated carbon, activated carbon impregnated catalysts and metal catalysts. In order to synthesize an absorbent with high desulfurization and denitrification activity, silicon raw materials usually need to be activated by CaO or ...

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Absorptive Desulfurization of Model Biogas Stream Using ...

2020-2-21  Until now, DESs have been widely used for desulfurization of fuels [9], biomass pre-treatment [29], water and air purification [30,31], in catalysis [32], and analytical chemistry [27,33,34]. Till now, no studies have been in the literature published regarding the use of DESs as absorbents

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New nanostructured sorbents for desulfurization of

2014-1-30  Desulfurization of natural gas is achieved commercially by absorption with liquid amine solutions. Adsorption could potentially replace the solvent extraction process, particularly for the emerging shale gas wells with production rates that are generally lower than that from the large conventional reservoirs, if a superior adsorbent (sorbent) is developed. In this review, we focus ...

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Study on Desulfurization of with Solid Waste by

This paper aims to study the feasibility of two solid waste which are boron mud and fly ash as desulfurization absorbents by microwave. Under the optimal operating conditions, the desulfurization removal efficiency achieves 88.2%. The microstructure of before and after the adsorbent reaction are analyzed by SEM. Base on the experiment research, the mechanisms of simultaneous desulfurization

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Evaluation of Some Regenerate Sulfur Dioxide

2018-6-29  The vapor pressure of sulfur dioxide above aqueous solutions of citric acid, glycolic acid, 1-methyl-2-pyrrolidone, and ethylenediamine, as well as above pure tri-n-butyl phosphate, 1-methyl-2-pyrrolidone, and water were measured for possible application as absorbents for regenerable flue gas desulfurization systems.

More

Article Metrics Desulfurization performance of sulfur ...

1 天前  The products obtained from the desulfurization operation were characterized using FT-IR and TGA analyses. Calcium sulfate hemihydrate was obtained for all the combinations of absorbents without and with the surfactant additives, except in the case where Teepol was added to the hydrated lime slurry and gypsum was obtained as the FGD product.

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Characterizations of Manganese-Based Desulfurated

2019-2-10  Abstract. For the application of dry flue-gas desulfurization, Mn 2 O 3 /SiC desulfurated sorbents with various manganese contents are prepared by the sol–gel method. The desulfurization performance of the sorbents is evaluated by a fixed-bed reactor with the simulated flue gas.

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Hunan Huanda Environmental Protection Co.,Ltd.

Hunan Huanda Environmental Protection Co.,Ltd. 18 followers on LinkedIn. Hunan Huanda Environmental Protection Co.,Ltd. is the leading manufacturer of desulfurizers (or desulfurization

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Reactive Adsorption Desulfurization_百度文库

2016-11-10  会员中心 VIP福利社 VIP免费专区 VIP专属特权

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