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Progress in desulfurization and solubilization of .

Research on the removal of sulfur and ash minerals from coal and to solubilize coal as an aid in removing undesirable components is discussed. The fundamental biochemical interactions between microbes and coal as a means of increasing processing rates and to target the removal of specific undesirable components are examined. This paper was presented at the 3rd Workshop on Bioprocessing of Coals...

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Control of Waste and Water Pollution From Coal-Fired Power ...

----- EPA-600/7-78-224 November 1978 Control of Waste and Water Pollution from Coal-fired Power Plants: Second R&D Report by P.P. Leo and J. Rossoff The Aerospace Corporation Environment and Energy Conservation Division El Segundo, California 90245 Contract No. 68-02-1010 Program Element No. EHE624A EPA Project Officer: Julian W. Jones Industrial Environmental Research Laboratory .

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Quantitative Measurement of Coal Bio .

(2013). Quantitative Measurement of Coal Bio-solubilization by Ultraviolet-visible Spectroscopy. Energy Sources, Part A: Recovery, Utilization, and Environmental ...

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Microbial Solubilization of Coal, Biotechnology .

Microbial Solubilization of Coal Microbial Solubilization of Coal Scott, Charles D.; Strandberg, Gerald W.; Lewis, Susan N. 1986-09-01 00:00:00 Several different strains of fungi have been shown to solubilize some types of low-ranked coal, apparently by an extracellular process. Oxidative pretreatment enhances the microbial action, allowing the use of a variety of coal feedstocks.

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Solubilization of Coal | SpringerLink

Coal solubilization, or essentially complete dissolution, entails a series of complex processes which involve reactions of the solvent as well as coal. Effective solubilization requires hydrogen from the solvent or other source outside of the coal since its hydrogen content is so low. Solubilization conceptually consists of using a solvent (and sometimes a catalyst) to break up the coal ...

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COAL DISSOLVING PROCESS - SUN RES AND .

25.06.1974 · A process for dissolving sub-bituminous coal which comprises heating a slurry of said coal in a hydrogenated anthracene oil containing from about 7 percent to about 9 percent combined hydrogen in the presence of gaseous carbon monoxide, water, and molecular hydrogen at a temperature of from about 400°C. to about 425°C., and at a total pressure of from about 2,000 to about 5,000 p.s.i.g.

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GRANULAR ACTIVATED CARBON (GAC) FACT SHEET

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AN. Coal bases are average at about 70 AN. Ratings below 70 may not hold up well to vigorous backwashing. The mesh size of a particular GAC may not affect its ultimate adsorptive performance but it does ). An 8x30 mesh carbon is approximately 2mm in diameter. A 12x40 measures about 1mm and a 20x50 mesh is about use shallower beds.

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Production of humic substances through coal - .

Abstract In this paper, the production of humic substances (HS) through the bacterial solubilization of low rank coal (LRC) was evaluated. The evaluation was carried out by 19 bacterial strains isolated in microenvironments with high contents of coal wastes. The biotransformed LRC and the HS produced were quantified in vitro in a liquid growth medium. The humic acids (HA) obtained from the ...

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Analysis of coal solubilization effect by .

Coal can be solubilized by different microorganisms from various sources.In order to investigate what kind of microorganisms possesses better solubilizing capability,the different strains such as bacteria,fungi and actinomyces,obtained from soil,coal slime,composts,rotten wood and mine water,were used for coal solubilization.The rates of coal solubilization were calculated and the capabilities ...

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Coal solubilization. Promotion of the C .

Solubilization of Mesocarbon Microbeads by Potassium- or Dibutylzinc-Promoted Butylation and Structural Analysis of the Butylated Products. Energy & Fuels 1997, 11 (2), 433-438.

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Characterization of the intermediate product of .

The product of solubilization, a soluble acid‐precipitable coal polymer, was isolated and characterized. The effects of oxidation pretreatments on the ability to solubilize coal were also examined. The intermediate product, which comprised 30% of the original coal, was readily recovered from the growth medium by acid precipitation and possibly consisted of a heterogeneous mixture of high ...

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Coal solubilization - National Energy Council

09.06.1992 · Coal solubilization . United States Patent 5120430 . Abstract: A method of solubilizing organic material in a coal includes the steps of contacting the coal with a medium comprising an organic solvent and a strong base or phenoxide reactively associated with the solvent. The solvent may be an aprotic dipolar solvent such as N-methyl pyrrolidone. The strong base may be sodium or potassium ...

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Review Article Research and Studies on Coal Desulphurization

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They achieved 63 percent sulphur removal by using this method. They also observed that increase in alkali concentration increases the sulphur removal. The reason may be the solubilization of many materials at higher alkali concentrations. Yingzhong et.al carried out studies on desulphurization of high-sulphur coal. [16]

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Solubilization coal depolymerization - Henan .

Coal solubilization National Energy Council. 199269Coal solubilisation involves extracting organic material from the coal into a solvent and filtering the organicrich solvent to remove the undissolved organic and mineral matter Various coal solubilisation methods are known One such method involves contacting the coal with hot, eg about 200C, Nmethyl pyrrolidone NMP . Live Chat ...

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Quantitative Measurement of Coal Bio .

(2013). Quantitative Measurement of Coal Bio-solubilization by Ultraviolet-visible Spectroscopy. Energy Sources, Part A: Recovery, Utilization, and Environmental ...

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Solubilization of coal by biosurfactant derived from ...

E23 Coal solubilization I 1X Abiotic 5X Abiotic 1X Biotic extract 5X Biotic extract Figure 1. Correlation of surfactant activity and coal solubilization (jig coal dissolved per 60 mg tested). Values are the result of subtracting control (no coal) values from experimental values. Biosurfactants and Coal 287 culture fluid solubilized coal significantly more than unconcentrated culture fluid ...

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Role of the Nitro Group on Coal Solubilization in .

Studies on the solubilization of two low-rank bituminous coals in aqueous organic solvents were conducted. The nitro group was introduced in the organic matrix of coal via oxidative nitration, using dilute nitric acid. The solubility of raw coals and the coals in which the nitro group was introduced were determined in aqueous acetone and aqueous tetrahydrofuran (THF).

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Cell-Free Solubilization of Coal by Polyporus .

Solubilization of coal was demonstrated with filtrates (0.45-μm-pore-size filters) obtained from the broth in which Polyporus versicolor had grown. The rate and extent of solubilization were dependent on the age of the fungal cultures, the particle size of the coal, the pH of the filtrates, and the presence of proteins in the filtrates. The rate of solubilization of coal was significantly ...

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Coal solubilization by enhanced enzyme activity .

Solubilization of some enzymes in organic liquids was enhanced by complexation with polyethylene glycol. Enzyme concentration of 1–20 mg/mL was used, and most of the reactions occurred during the first 4 h, with up to 85% of the coal solubilized. There was some evidence of coal product inhibition and enzyme deactivation at higher temperatures.

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Solubilization coal depolymerization - Henan .

Coal solubilization National Energy Council. 199269Coal solubilisation involves extracting organic material from the coal into a solvent and filtering the organicrich solvent to remove the undissolved organic and mineral matter Various coal solubilisation methods are known One such method involves contacting the coal with hot, eg about 200C, Nmethyl pyrrolidone NMP . Live Chat ...

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Enzymatic depolymerization and solubilization of ...

WO 2013/177471 PCT/US2013/042536 ENZYMATIC DEPOLYMERIZATION AND SOLUBILIZATION OF CHEMICALLY PRETREATED COAL AND COAL-DERIVED CONSTITUENTS CROSS-REFERENCE TO RELATED APPLICATIONS [0001] The present application claims the benefit of United States Provisional Patent Application Number 61/650,576 for "Depolymerization And Solubilization Of Chemically Pretreated Coal .

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