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reducing sulfur in lignite coal
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Organic Sulfur Reduction on Lignite Coal Using Multistage ...
Request PDF Organic Sulfur Reduction on Lignite Coal Using Multistage Artificial Biotreatment (A-Bmt) This study focuses on the biodesulfurization of lignite specifically the reduction of ...
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reducing sulfur in lignite coal - hotspotdeband.nl
Organic Sulfur Reduction on Lignite Coal Using U.S. Pat. No. 4,226,601 disclosed a "Process for reducing sulphur contaminant emissions from burning coal or lignite that contains sulphur". In the disclosed process, the coal or lignite that contains sulphur
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Organic Sulfur Reduction on Lignite Coal Using Multistage ...
This study focuses on the biodesulfurization of lignite specifically the reduction of organic sulfur, namely aliphatic mercaptans/thiols via bioprocess methods. The process was conducted by using multistage artificial biotreatment (A-Bmt) and Pseudoclavibacter sp. SKC/XLW-1 strains as biocatalysts.
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Process for reducing sulfur contaminant emissions from ...
OSTI.GOV Patent: Process for reducing sulfur contaminant emissions from burning coal or lignite that contains sulfur
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Reducing sulfur and ash from coal using Bacillus subtilis ...
2014-1-1 Several separation techniques were tested for ash and sulfur removal from coal. Bioseparation is one of recently tested methods for removal of sulfur from coal. Therefore, in the current study, bioflotation was used for reducing coal ashes and sulfur using Bacillus subtilis and Paenibacillus polymyxa. Coal–bacteria interaction was investigated using adsorption kinetics, adsorption isotherm,
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Reducing sulphur emission in the process of burning high ...
Made available by U.S. Department of Energy Office of Scientific and Technical Information ...
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The application of combined lignite cleaning processes ...
Acidithiobacillus thiooxidans) have been used to remove sulfur from coal and have been reported to yield very good results. In addition, differentmicroorganisms are recommended for this process.
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Sulfur Analysis of Bolu-Mengen Lignite before and after ...
2007-10-2 Sulfur Analysis of Bolu-Mengen Lignite before and after ... TPR as a technique to monitor sulfur functionalities in coal. Introduction ... Apart from the reducing pyrolysis, the sample can also be studied under an inert atmosphere (100 mL/min He) (i.e. AP-TPP coupled on-line with MS). Certainly when oxidized sulfur
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How to Remove Sulphur from Coal
2017-9-1 The combination gravity and flotation methods demonstrate the technical feasibility of processing fine size coal to effectively remove sulfur and ash to recover high quality clean coal products which meet or exceed specifications for commercial grade coal as regards to Btu value, and ash and sulfur
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Desulfurization of Coal - EOLSS
2017-1-16 reduce the total sulfur in the coal with a high ratio of pyritic sulfur/organic sulfur. The ASTM standard test method (D 2492) applies to the determination of pyritic and sulfatic sulfur. In this method, briefly, coal particles are first extracted with hot dilute HCl to remove sulfatic sulfur, and the residue is then extracted with dilute HNO3 to
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US Patent for Process for reducing sulfur contaminant ...
A process for preparing a coal or lignite fuel that contains sulfur for combustion wherein reduced amounts of sulfur containing air contaminants are emitted from the combustion is disclosed. In the disclosed process, the coal or lignite that contains sulfur is first pulverized and is then mixed with a finely divided inorganic material. The inorganic material can be at least one of the oxides ...
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US4226601A - Process for reducing sulfur contaminant ...
A process for preparing a coal or lignite fuel that contains sulfur for combustion wherein reduced amounts of sulfur containing air contaminants are emitted from the combustion is disclosed. In the disclosed process, the coal or lignite that contains sulfur is first pulverized and is then mixed with a finely divided inorganic material.
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The application of combined lignite cleaning processes ...
A 10 kg representative lignite coal sample within pyritic sulfur to be used for microbial flotationwas collected from Çan open mine (Çan, Çanakkale, Turkey). Sample preparation,
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Process for preparing sulfur-containing coal or lignite ...
An improved process for preparing a coal or lignite fuel that contains sulfur for combustion wherein reduced amounts of sulfur-containing air contaminants are emitted from the combustion. In a process whereby coal or lignite that contains sulfur is pulverized and subsequently mixed with a finely divided inorganic material, the improvement comprises precipitating the inorganic material onto the ...
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Bioelimination of sulfur from high-sulfur coal by selected ...
In this study, low-rank lignite coal sample collected from Lenger coal deposit (Turkestan province) in Kazakhstan was subjected to desulfurization by using three bacterial strains isolated from soil with silt and coal itself. The molecular identification of the 16S rRNA gene revealed that the isolated bacteria were Atlantibacter sp., Pseudomonas sp., Bacillus sp. denoted as S1, S2, and T1 ...
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Release of Sulfur and Nitrogen during Co-pyrolysis of
2020-11-24 biomass enhances desulfurization of coal due to the hydrogen donor property of biomass, which allows the easy release of sulfur in the form of H 2 S. 48,49 Cordero et al.50 co-pyrolyzed high-sulfur coal and four biomass residues and Blesa et al.51 co-processed coal and biomass to observe the enhanced desulfurization in the pyrolysis gas.
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Gasification of lignite coal in North America
2018-4-17 5/31/2012 3 Molecular and physical structure high moisture content low heating value dissimilar contents and forms of oxygen Sulfur and nitrogen higher porosity and surface area higher reactivity in oxidizing and reducing atmospheres high gas and low tar yields in pyrolysis distinctive (alkaline) inorganic forms and mineral ...
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NACoal Reducing Emissions and Coal Moisture
Currently, moisture removal rates push 11% and sulfur removal runs around 9.5%. DryFined coal has many benefits, including reduced total mass through the boiler, with the corresponding reduction in erosion-related maintenance issues. NoDak’s dried coal has a heating value around 7,000 BTUs, compared with the feed level of 6,200.
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Upgrading of high moisture content lignite SpringerLink
Removal of inherent moisture from run-of-mine lignite was tested by lock-feeding the lignite, which was previously sized by screening into 25 kg autoclaves. High pressure, up to 4.053 MPa (588 psi), saturated steam was then introduced into the pressure reactor. Reaction time, pressure, temperature and depressurization rates were strictly controlled for each reactor test run.
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Molecular Characterization of Soluble Components in the ...
2020-7-31 A lignite was subjected to sequential solvent extraction via continuously reducing particle size from around 20 to more than 200 mesh. Five sets of n-hexane and methanol extracts from the particles were characterized by electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry (ESI FT-ICR MS) and gas chromatography–mass spectrometry. The total extract yield
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Method of removal of sulfur from coal and petroleum
2018-4-18 Organic Sulfur Spanish Lignite with Impregnated Nickel Sulfate,” Coal Preparation, 9, 185-197 (1991) Month N/A. A. B. Garcia et al., “Comparative Performance of Im pregnated Molybdenum-Sulfur Catalysts in Hydroge nation of Spanish Lignite,” Fuel, 68, 1613-1616 (Dec. 1989). A. P. Ginsberg et al., “Disulfur and Diselenium Com
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Biodesulfurization of Mengen Lignite with Rhodoccocus ...
2017-4-25 The total and organic sulfur contents of the coal after biodesulfurization were correlated with the coal concentration by using the linear least-squares regression method. In the rebiodesulfurization run that lasted 8 days, the highest organic sulfur-reducing percentage was obtained as 10.2% at the same experimental conditions.
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Release of Sulfur and Nitrogen during Co-pyrolysis of
2020-11-24 biomass enhances desulfurization of coal due to the hydrogen donor property of biomass, which allows the easy release of sulfur in the form of H 2 S. 48,49 Cordero et al.50 co-pyrolyzed high-sulfur coal and four biomass residues and Blesa et al.51 co-processed coal and biomass to observe the enhanced desulfurization in the pyrolysis gas.
Read More
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Gasification of lignite coal in North America
2018-4-17 5/31/2012 3 Molecular and physical structure high moisture content low heating value dissimilar contents and forms of oxygen Sulfur and nitrogen higher porosity and surface area higher reactivity in oxidizing and reducing atmospheres high gas and low tar yields in pyrolysis distinctive (alkaline) inorganic forms and mineral ...
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Final Report Reducing Mercury Emission from Coal ...
2019-5-14 64% of coal and lignite consumption was for electricity generation. Most of domestic lignite (97%) was used in electricity generation, whereas only 35% of imported coal was ... the action plan on reducing mercury emission from coal combustion and capacity building for stakeholders. ... but lower content of sulfur, chlorine, mercury and arsenic ...
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NACoal Reducing Emissions and Coal Moisture
Currently, moisture removal rates push 11% and sulfur removal runs around 9.5%. DryFined coal has many benefits, including reduced total mass through the boiler, with the corresponding reduction in erosion-related maintenance issues. NoDak’s dried coal has a heating value around 7,000 BTUs, compared with the feed level of 6,200.
Read More
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14. By-products from the integrated gas combined cycle
2020-12-4 Table 14.2 Slag and sulfur produced in a 500MW IGCC plant Gasification technology Slurry feed gasifier Dry feed gasifier Study coal High sulfur bituminous Low sulfur sub-bituminous Lignite MW net 500 500 500 HHV net efficiency (%) 41.8 40 39.2 Gasifier slag (kg/h) 16.354 11.434 56.29 Sulfur product (kg/h) 3.937 0.474 1.982 Data from US EPA (2006).
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Upgrading of high moisture content lignite SpringerLink
Removal of inherent moisture from run-of-mine lignite was tested by lock-feeding the lignite, which was previously sized by screening into 25 kg autoclaves. High pressure, up to 4.053 MPa (588 psi), saturated steam was then introduced into the pressure reactor. Reaction time, pressure, temperature and depressurization rates were strictly controlled for each reactor test run.
Read More
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Molecular Characterization of Soluble Components in the ...
2020-7-31 A lignite was subjected to sequential solvent extraction via continuously reducing particle size from around 20 to more than 200 mesh. Five sets of n-hexane and methanol extracts from the particles were characterized by electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry (ESI FT-ICR MS) and gas chromatography–mass spectrometry. The total extract yield
Read More
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Reducing Freshwater Consumption at Coal-Fired Power
2011-4-21 Reducing freshwater consumption at coal-fired power plants can occur directly or indirectly. Direct approaches are aimed specifically at reducing water consumption, and they include dry cooling, dry bottom ash handling, low-water-consuming emissions-control technologies, water
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