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  • Atmospheric Residue Desulfurization Process for Residual

    Atmospheric residue desulfurization (ARDS) process is extensively used in upgrading of heavy petroleum oils and residues to more valuable clean environmentally friendly transportation fuels and to

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  • Desulfurization and Regeneration Properties Study Of

    The desulfurization test from a gas mixture containing 0.1vol H2S was carried out over SBA-15 supported Fe2O3 in a fixed-bed system at atmospheric pressure and room temperature.

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  • Metal sulfide initiators for metal oxide sorbent regeneration

    FIG. 1 is a schematic view of one preferred continuous desulfurization and regeneration process according to the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS. In the drawings and the following detailed description preferred methods and sorbent compositions of the invention are described in detail.

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  • Visible light photocatalytic oxidative desulfurization

     · Iron phthalocyanine (PcFe) was loaded on Ti-MCM-41 as visible light photocatalyst (R-PcFe/Ti-MCM-41). Dibenzothiophene (DBT) was photooxidized using R-PcFe/Ti-MCM-41 as a photocatalyst air as an oxidant and ionic liquid as the extraction agent during visible light irradiation at room temperature and ambient conditions. The results indicated that photocatalytic efficiency of the amino iron

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  • Biogas Desulfurization System by Shandong Mingshuo

    The equipment has long-time running continuous desulfurization no secondary pollution(has by-product sulfur) large air flow high precision of desulfurization and other advantages. The whole of the desulfurization regeneration melting sulfur treatment

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  • Regeneration of AgXO SBA-15 for reactive adsorptive

     · Adsorbent regeneration is critical for a continuous adsorption–regeneration process and often underestimated. In this work the regeneration of bifunctional Ag X O SBA-15 for O -induced reactive adsorptive desulfurization of liquid fuel is reported and further investigated. The spent Ag X O SBA-15 was regenerated in various types of solvents followed by calcination and tested in multiple

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  • (PDF) Review of desulfurization process for biogas

    Dry desulfurization is the removal of hydrogen sulfide by powde r or particle desulfurization agent. The. reaction is carried out in a completely dry state so there wil l be no corrosion scaling

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  • Economic analysis of ultrasound-assisted oxidative

    regeneration times a 30 000 bbl/day facility would require 6 adsorption beds of 400 m3 to maintain continuous operation. The second option considered for regeneration of the adsorbent is a solvent wash followed by either distillation or a second stage adsorption. The author s own laboratory experiments

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  • Atmospheric Residuean overview ScienceDirect Topics

    Atmospheric residue can be desulphurized using the process shown in Figure 7.8. Middle East atmospheric residue has a sulphur content of 4–5 wt and metals (Ni V) of 75–90 wppm. The purpose of this process is to remove most of the metals and reduce

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  • Electrochemical generation of sulfur vacancies in the

     · Recently sulfur (S)-vacancies created on the basal plane of 2H-molybdenum disulfide (MoS2) using argon plasma exposure exhibited higher intrinsic activity for the electrochemical hydrogen

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  • Desulfurization sorbents for green and clean coal

     · Despite its high desulfurization accuracy ZnO desulfurization sorbent similar to the other metal oxides cannot maintain stable cycling performance the key reason for which lies in the sintering of the outer surface and internal structure of this sorbent the occurrence of regeneration side reactions and continuous generation of by-product

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  • Influence of wet flue gas desulfurization on the

     · Fluid catalytic cracking (FCC) unit emits a large amount of flue gas which is a major concern of environmental protection supervision. Wet flue gas desulfurization (WFGD) technologies have been widely used to control the emissions of SO2 in refineries. In this study stack tests for pollutants emission of a typical FCC unit were conducted. The emission characteristics of the FCC unit

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  • Regeneration of flue gas desulfurization waste liquors

     · Regeneration of the Fe sup II EDTA scrubbing liquors for simultaneous removal of SO sub 2 and NO sub x in flue gas involves removing the nitrogen-sulfur (N-S) compounds accumulated in the liquor. In this paper the authors investigate a simple regeneration process

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  • 1 2 and Junhui Dong 1 3 mdpi

     · desulfurization reaction time (h) Cin is the inlet concentration of sulfur dioxide (mg/m3) while Cout is the outlet concentration. After the adsorbent desulfurization the used sorbent was regenerated at 800 C with a heating rate of 10 C/min. The gas atmosphere was an air stream with a WHSV of 12 L h1 g1. The regeneration

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  • Desulfurization and Regeneration Properties Study Of Fe2O3

    The desulfurization test from a gas mixture containing 0.1vol H2S was carried out over SBA-15 supported Fe2O3 in a fixed-bed system at atmospheric pressure and room temperature.

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  • EKATO Agitators for Flue Gas Desulfurization

     · EKATO Agitators for Flue Gas Desulfurization Highly efficient performance robust and reliable design Worldwide over 12 000 EKATO agitators prove their reliability every day in more than 1 500 flue gas desulfurization plants. As theworld market leader EKATO set benchmark in nowadays state-of-the-art FGD agitator systems.

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  • Hot/Warm Gas Cleanup

     · Shakedown will culminate in a demonstration test of continuous transport desulfurization and regeneration at design operating conditions with a zinc titanate sorbent. This approach follows recommendations from a group of industry representatives who participated in an external review of the project in April 2001.

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  • (PDF) Discussion on Treatment Technology of Overflowing

     · PDF On Mar 24 2020 Jianguo Deng and others published Discussion on Treatment Technology of Overflowing Waste Gas in Silicone Desulfurization Regeneration Tank

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  • Regeneration of AgXO SBA-15 for reactive adsorptive

     · Adsorbent regeneration is critical for a continuous adsorption–regeneration process and often underestimated. In this work the regeneration of bifunctional Ag X O SBA-15 for O -induced reactive adsorptive desulfurization of liquid fuel is reported and further investigated. The spent Ag X O SBA-15 was regenerated in various types of solvents followed by calcination and tested in multiple

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  • A Process for Capturing CO2 from the Atmosphere

     · Article A Process for Capturing CO2 from the Atmosphere David W. Keith 1 2 3 4 Geoffrey Holmes 3 David St. Angelo 3 and Kenton Heidel3 SUMMARY We describe a process for capturing CO2 from the atmosphere in an industrial plant. The design captures 1Mt-CO2/year in a continuous process using an aqueous KOH sorbent coupled to a calcium caustic recovery loop.

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  • Visible light photocatalytic oxidative desulfurization

     · Iron phthalocyanine (PcFe) was loaded on Ti-MCM-41 as visible light photocatalyst (R-PcFe/Ti-MCM-41). Dibenzothiophene (DBT) was photooxidized using R-PcFe/Ti-MCM-41 as a photocatalyst air as an oxidant and ionic liquid as the extraction agent during visible light irradiation at room temperature and ambient conditions. The results indicated that photocatalytic efficiency of the

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  • Gas DesulfurizationH₂S removal for biogas upgrading

     · Gas Desulfurization (H₂S removal) Technologies. Common H₂S removal technologies for H₂S removal from biogas fall into one of the following Biological conversion by which sulfur compounds convert into elemental sulfur by sulfide oxidizing microorganisms with addition of air and oxygen. DMT offers a wide portfolio for gas desulfurization

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  • AirScience Desulfurization • BiogasWorld

    AirScience Technologies offers two desulfurization processes. ISET Iron chelate process for high inlet hydrogen sulfide concentrations. Dry scrubbing catalyst for low inlet hydrogen sulfide concentrations. In cases where hydrogen sulfide concentrations of less than 100 ppmv are required a dry scrubbing catalyst stage is required.

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  • Advanced Sulfur Control Processing (Technical Report

     · More detailed studies of the regeneration of FeS as well as the sulfidation of CeO sub 2 and regeneration of Ce sub 2 O sub 2 S are being carried out in a laboratory-scale fixed-bed reactor equipped with a unique analytical system which permits semi-continuous analysis of the distribution of elemental sulfur H sub 2 S and SO sub 2 in the

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  • Gas desulfurizationDMT Environmental Technology

     · Gas desulphurisation is therefore an essential part of the biogas upgrading process. Besides the fact that H₂S is a very toxic gas and therefore very harmful to the environment it is also a highly dangerous gas. The basic principle of the technologies DMT offers to desulfurize gas is the absorption of H2S into a liquid.

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  • An evaluation of desulfurization technologies for sulfur

    Instability and regeneration of the Ils corrosion problem negative effects on fuel quality and high total costs of deep fuel desulfurization make the use of Ils in still a challenging task for researchers. 172 212 A number of excellent reviews have already been published which critically evaluate desulfurization of liquid fuels by Ils and

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  • Deep oxidative desulfurization of model fuels catalysed by

    where R is the desulfurization rate C 0 is the initial sulphur content of the oil and C e is the sulphur content of the oil after desulfurization. 2.5 Characterization X-Ray Diffraction (XRD) patterns were collected with a Bruker D8 ADVANCE diffractometer using Cu Kα radiation at a scanning rate of 1° min −1 between 5° and 40°. Infrared spectra were recorded in KBr discs with a Bruker

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  • Evaluation of adsorptive desulfurization performance and

    The desulfurization effect after five regenerations is shown in Fig. 6. It can be seen from Fig. 6 that after five regeneration experiments of the four adsorbents the desulfurization capacity of CS-ACA and PUPW-ACA decreased more obviously both decreased by about 45 . This may be related to their mechanical strength pore-clogging and loss of

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  • Preparation of calcium ferrite by flue gas desulfurization

     · At present the continuous accumulation of the flue gas desulfurization (FGD) gypsum in steel plants leads to the serious environmental issues and resource waste. To achieve green and sustainable development for the steel industry it is significant to improve the usage of by-product gypsum. Employing the sintering FGD gypsum ferric oxide and graphite carbon as raw materials the effects of

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  • Gas DesulfurizationH₂S removal for biogas upgrading

     · Gas Desulfurization (H₂S removal) Technologies. Common H₂S removal technologies for H₂S removal from biogas fall into one of the following Biological conversion by which sulfur compounds convert into elemental sulfur by sulfide oxidizing microorganisms with addition of air and oxygen. DMT offers a wide portfolio for gas desulfurization

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  • Atmospheric Residuean overview ScienceDirect Topics

    Atmospheric residue can be desulphurized using the process shown in Figure 7.8. Middle East atmospheric residue has a sulphur content of 4–5 wt and metals (Ni V) of 75–90 wppm. The purpose of this process is to remove most of the metals and reduce sulphur content in the product to less than 0.5 wt . Figure 7.8.

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  • ThecatalyticdesulfurizationofWyomingfueloil

     · Cobalt molybdate was used successfully as a desulfurization agent for 864 hours of continuous operation with no- air regeneration. This catalyst showed a considerably higher activity and a longer catalyst life than the molybdenum oxide. 108575

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  • PAPER OPEN ACCESS Progress of Desulfurization and

     · atmosphere and combined with O2 and metal oxides to generate aerosols by illumination. Then a the old ammonium desulfurization equipment has been difficult to meet the desulfurization requirements and the total dust of flue gas ② Regeneration reaction . 4th International Conference on Energy Equipment Science and Engineering

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  • ChemEngineering Free Full-Text Desulfurization of

    Desulfurization processes play an important role in the use of biogas in the emerging market of renewable energy. In this study an iron-redox biological process was evaluated at bench scale and pilot scale to remove hydrogen sulfide (H2S) from biogas. The pilot scale system performance was assessed with real biogas emitted from a closed landfill to determine the desulfurization capacity under

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  • Microaeration for hydrogen sulfide removal during

     · C Atmospheric pressure Usually two reaction beds Capacity 1000 Nm 3 gas h-1 Limited regeneration Petersson and Wellinger (2009) Wellinger and Lindberg (1999) Activated carbon (AC) Temperature 50–70 C Pressure 7–8 bar 300 mg H 2 S per 1 g of AC Usually two vessels for continuous system For gaseous H 2 S Limited regeneration Impregnation of

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  • PAPER OPEN ACCESS Progress of Desulfurization and

     · atmosphere and combined with O2 and metal oxides to generate aerosols by illumination. Then a the old ammonium desulfurization equipment has been difficult to meet the desulfurization requirements and the total dust of flue gas ② Regeneration reaction . 4th International Conference on Energy Equipment Science and Engineering

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  • DesulfurisationBSBSUCCEED

    Desulfurization generally refers to the process of removing sulfur from fuel before combustion and desulfurization before flue gas emission. It is one of the important technical measures to prevent air pollution. At present there are generally three types of desulfurization methods pre-combustion combustion and post-combustion desulfurization.

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  • Scope of Adsorption in Desulphurization of Different Fuels

     · of them were used continuous operation at room temperature and at atmospheric pressure. Effect of contact time adsorbent dose temperature and concentration were studied by different authors. Evaluated parameters and equilibrium data were described by different isotherm model by

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  • Synthesis of bimetallic–organic framework Cu/Co-BTC and

     · The regeneration was carried out as follows the used Cu/Co-BTC was swept by N 2 firstly at room temperature for 1 h and then at 423 K for 2 h. After that it was cooled to room temperature in N 2. At 303 K and atmospheric pressure the breakthrough experiment of the regenerated Cu/Co-BTC was run as the above procedure.

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