desulfurization absorbents

Desulfurization behavior of Ca-based absorbents under ...

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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Composite Solid Absorbent for Simultaneous Desulfurization ...

2020-7-21  The composite solid absorbent was developed for simultaneous desulfurization and denitrification of low-temperature flue gas. The efficiency of this absorbent was confirmed by a pilot experiment in a coke oven. ... and phase compositions of fresh and used absorbents were measured to investigate the enhanced performance mechanism of absorbent ...

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Desulfurization of natural gas using industrial absorbents ...

The removal of sulfur compounds from natural gas occupies an important place in a number of technological processes, including the production of ammonia and methanol. The influence of the conditions for pelleting granules of a zinc oxide absorbent on its pore structure, distribution of sulfur in the granules as well as the effect of desulfurization ...

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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 gases or syngas and purification of feed gases for organic synthesis processes. It is suitable for

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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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3D printed ZnO absorbent for desulfurization of syngas ...

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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A novel potential adsorbent for ultra deep desulfurization ...

Among all desulfurization technologies, selective adsorption for removing sulfur (SARS) has been regarded as the most promising approach for processing of jet fuels in application of SOFCs. 8 As the technological core of the SARS process, absorbents have been attracting wide attention.

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Removal of sulfur dioxide using absorbent synthesized from ...

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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Desulfurization of Biomass Syngas Using ZnO-Based ...

2021-3-11  The desired properties for desulfurization adsorbents can be generalized as (1) high H 2 S adsorption capacity [high capacity reduces the required adsorbent quantity and process equipment size]; (2) fast adsorption kinetics and favorable reaction equilibrium; (3) good mechanical properties; (4) chemical properties [stable in reducing environments and not affected by steam and possibly

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Three dimensional ordered macroporous zinc ferrite ...

2019-3-15  From the standpoint of desulfurization efficiency, zinc based sorbents for hydrogen sulfide (H2S) adsorption have been extensively investigated due to its favourable sulfidation thermodynamics and nonpyrophoric property,,, which are favoured on ultra-deep desulfurization application.

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Composite Solid Absorbent for Simultaneous Desulfurization ...

2020-7-21  The composite solid absorbent was developed for simultaneous desulfurization and denitrification of low-temperature flue gas. The efficiency of this absorbent was confirmed by a pilot experiment in a coke oven. ... and phase compositions of fresh and used absorbents were measured to investigate the enhanced performance mechanism of absorbent ...

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3D printed ZnO absorbent for desulfurization of syngas ...

2017-12-14  3D printed ZnO absorbent for desulfurization of syngas fuel Abstract: Preparation of ZnO absorbents by 3D additive manufacturing (AM) for the adsorption of H 2 S in syngas fuel is conducted. ZnO feedstock for 3D AM was extruded to produce pyramid catalytic ceramic support (the absorbent) with a fracture strength of 5.7-9.1 MPa.

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Study on the desulfurization performance of iron ...

2021-3-16  Deep eutectic solvent (DES) was applied as the solvent of iron/alcohol amine system, and the prepared iron/ethanolamine/DES system was found to be a good desulfurizer for H2S removal. 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

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A novel potential adsorbent for ultra deep desulfurization ...

The best desulfurization effect attribute to the adsorbent which was synthesized by extrusion molding, calcined at 600 °C for 3 h under He atmosphere, with particle sizes of 0.5–5.0 mm. At room temperature and atmospheric pressure a desulfurization efficiency of 93.47% to real jet-A fuel with a high sulfur content of 949.03 ppmw has been ...

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Diethylenetriamine solutions for stack gas desulfurization ...

Aqueous absorbents for stack-gas desulfurization by absorption/stripping. Final report. Technical Report Rochelle, G T. Several alternative aqueous absorbents were experimentally evaluated for use in absorption/stripping processes for flue gas desulfurization. The pH behavior of citrate, basic aluminum sulfate, ethylenediamine, and adipate ...

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New nanostructured sorbents for desulfurization of natural gas

2014-3-5  Desulfurization of natural gas is achieved commercially by absorption with liquid amine solutions. Adsorption technology 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.

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(PDF) Oil Palm Ash/Ca (OH) 2/CaSO4 Absorbent for Flue Gas ...

The slur- The desulfurization activity of the absorbents was tested ry was then heated to 90 C for a period of time for the hydra- using a fixed bed reactor. The reaction zone was contained tion process to occur. The resulting slurry was then filtered and in a 0.01 m inner diameter stainless steel tube fitted in a fur- dried at 200 C for 2 h.

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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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Desulfurization Performance and Kinetics of Potassium ...

2020-8-4  Potassium hydroxide-impregnated char sorbents (KOH/char) prepared via an ultrasonic-assisted method were used for SO2 removal from flue gas. The desulfurization experiment was analyzed using a fixed-bed reactor under 40–150 °C temperature range, using simulated flue gas. X-ray diffraction (XRD), Fourier-transform infrared spectroscopy, and scanning electron microscopy/energy-dispersive

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Reactive Adsorption Desulfurization_图文_百度文库

2016-11-10  Reactive Adsorption Desulfurization_能源/化工_工程科技_专业资料 11人阅读次下载 Reactive Adsorption Desulfurization_能源/化工_工程科技 ...

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Composite Solid Absorbent for Simultaneous Desulfurization ...

2020-7-21  The composite solid absorbent was developed for simultaneous desulfurization and denitrification of low-temperature flue gas. The efficiency of this absorbent was confirmed by a pilot experiment in a coke oven. ... and phase compositions of fresh and used absorbents were measured to investigate the enhanced performance mechanism of absorbent ...

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A Model of Desufurization with Highly Active Absorbents ...

Experiments of desulfurization with highly active absorbents,consisting of industrial lime,pulverized coal ash and additives,were carried out in a circulating fluidized bed(CFB),and,after having analyzed the flow and the temperature field in the bed,a physical model of ...

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Absorbents reagents and their use for the desulfurization ...

Absorbents reagents and their use for the desulfurization of gaseous streams. # The present invention relates to a porous material comprising a support modified clay by a pore-generating agent and at least one oxide of a metal selected from the first series of Transition. It further relates to a method of obtaining this material and the use of such material for the desulfurization of gaseous ...

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A novel potential adsorbent for ultra deep desulfurization ...

The best desulfurization effect attribute to the adsorbent which was synthesized by extrusion molding, calcined at 600 °C for 3 h under He atmosphere, with particle sizes of 0.5–5.0 mm. At room temperature and atmospheric pressure a desulfurization efficiency of 93.47% to real jet-A fuel with a high sulfur content of 949.03 ppmw has been ...

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Study on Desulfurization of with Solid Waste by Microwave ...

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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Study on the desulfurization performance of iron ...

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 H 2 S removal efficiency in a wide temperature range from 30-90°C. The iron ...

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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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Desulfurization Performance and Kinetics of Potassium ...

2020-8-4  Potassium hydroxide-impregnated char sorbents (KOH/char) prepared via an ultrasonic-assisted method were used for SO2 removal from flue gas. The desulfurization experiment was analyzed using a fixed-bed reactor under 40–150 °C temperature range, using simulated flue gas. X-ray diffraction (XRD), Fourier-transform infrared spectroscopy, and scanning electron microscopy/energy-dispersive

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Evaluation of Some Regenerate Sulfur Dioxide Absorbents ...

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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Reactive Adsorption Desulfurization_图文_百度文库

2016-11-10  Reactive Adsorption Desulfurization_能源/化工_工程科技_专业资料 11人阅读次下载 Reactive Adsorption Desulfurization_能源/化工_工程科技 ...

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