Cover of: Sulfur reduction of Illinois coals | Roy John Helfinstine

Sulfur reduction of Illinois coals

washability studies
  • 32 Pages
  • 4.15 MB
  • English
State of Illinois, Dept. of Registration and Education, Illinois State Geological Survey , Urbana, IL
Coal, Coal washing, Sulfur co
StatementR.J Helfinstine ... [et al.]
SeriesCircular / Illinois State Geological Survey -- 484, Circular (Illinois State Geological Survey) -- 484.
LC ClassificationsQE105 .A45 no.484
The Physical Object
Pagination32 p. :
ID Numbers
Open LibraryOL25412758M

Threeformsofsulfur—sulfate,organic,andpyritic—weredetermined by chemical sulfatesulfurcontent is quite low, with an average of only percent. Get this from a library. Sulfur reduction of Illinois coals--washability studies.

[Roy John Helfinstine; Illinois State Geological Survey.]. Get this from a library. Sulfur reduction of Illinois coals: washability studies.

Part 2. [Roy John Helfinstine;]. high-sulfur (4%) Illinois coal, the pitch sulfur content is still unacceptably high at 2%. In this project, two approaches to sulfur reduction are being explored in conjunction with FTC: (1) the use of conventionally cleaned coal with low (-1%) sulfur as a mildAuthor: R.A.

Knight. Request PDF | Mercury and pyritic sulfur reduction by preparation of U.S. Illinois Basin coals | The Illinois Basin is the third largest producer of U.S. coal, after the Powder River Basin and the. Much of the coal in the Illinois Basin is high-sulfur coal, greater than 3 percent total sulfur, which limits its use as a fuel source.

A substantial portion of the coal desul- furization research at the Illinois State Geological Sur- vey has been aimed at producing a clean low-sulfur solid fuel from Illinois high-sulfur coal.

In this project. @article{osti_, title = {Development of system operating parameters for ash and sulfur reduction in Illinois basin coal by froth flotation. Final report, July 1, J }, author = {Sinha, A K}, abstractNote = {A great potential market for high Btu midwestern thermal coal exists if the coal is desulfurized and prepared to meet environmental restriInrintions and utility.

assessed and nonassessed coals in the Illinois Basin.

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E27 2. Summary descriptive statistics of proximate and ultimate analyses, calorific values, forms-of-sulfur analyses, and ash-fusion temperatures for all assessed and nonassessed coals in the Illinois Basin as analyzed by the Illinois StateFile Size: 2MB. However, in pitches fiom high-sulfur (4%) Illinois coal, the finished pitch sulfbr content is still unacceptably high at about 2%.

In this project, two approaches to sulfbr reduction are being explored in conjunction with thermocracking: (1) the use of conventionally cleaned coal with low (-1%) sufir as aAuthor: R.A. Knight. Chou () compiled sulfur isotope data on Illinois coals which showed that the variation of δ 34 S in organic sulfur is correlated with the organic sulfur content in Illinois Basin coals.

Low-sulfur coal (Cited by: This book is a survey in depth of actual and potential ways to remove sulfur from coal before use.

Although a large amount of the sulfur can be removed as pyrite mineral by physical means, chemical methods are required to complete the process. These methods involve oxidation, reduction, thermolysis, solvent partition, etc. l l I Corrections Sulfur Varieties in Illinois Coals - Float-Sink Tests Report of Study Phase I, Aug 1.

Table 1 consists of the first 20 pages of tables. Table 5 is "Chemical Analysis of Channel Samples of Coal.

Table s: Decimal point is misplaced in. Microbial oxidation and reduction of sulfur in coals for speciation and desulfurization Article (PDF Available) January with 16 Reads How we measure 'reads'.

Details Sulfur reduction of Illinois coals FB2

Full text of "Low temperature perchloroethylene extraction of sulfur from Illinois coal" See other formats IL6of cp^ LOW TEMPERATURE PERCHLOROETHYLENE EXTRACTION OF SULFUR FROM ILLINOIS COAL M.-l. Chou, J.M. Lytle, R.R. Ruch, D.H.

Buchanan, K.C. Hackley, R.E. Hughes, J.W. Stucki, and F.E. Huggins with contributions by C.W. Kruse, C. Chaven, R.D.

Description Sulfur reduction of Illinois coals EPUB

Harvey. Total Sulfur Analysis of High Sulfur Coals Sample Doped With Elemental Sulfur ROM Coal Hexane Refluxed Heptane Refluxed Toluene Refluxed Bomb Wash Calculated Sulfur Analyzed Sulfur Leco Calculated Sulfur Analyzed Sulfur ± ± ± ± Eschka Calculated.

Report of Investigations Sulfur Reduction Potential of the Coals of the United States By A. Deurbrouck Pittsburgh Energy Research Center, Pittsburgh, Pa.

UNITED STATES DEPARTMENT OF THE INTERIOR Rogers C. Morton, Secretary BUREAU OF MINES Elburt F. Osborn, Director The work upon which this report is based was done under a cooperative agreement between the Bureau. The influence of benzenethiol, benzyl phenyl thioether, diphenyl disulfide and other sulfur-containing compounds on the conversion of coals from the Illinois Basin into soluble products in short duration, donor solvent dissolution reactions has been investigated from to °C using tetralin.

Benzenethiol is an especially effective by: 4. Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal is mostly carbon with variable amounts of other elements; chiefly hydrogen, sulfur, oxygen, and nitrogen.

Coal is formed when dead plant matter decays into peat and is converted into coal by the heat and pressure of deep burial over millions of y: carbon.

peat accumulation are an aid to exploration for low-sulfur coal. The major minable coals in Illinois generally have sulfur contents ranging from 3 to 5%.

However, in scat-tered areas, the sulfur content of individual seams is lower, ranging from to % (dry basis). This paper describes the paleoenvironments associated with known low-sulfur. Trace Elements in Energy Fuels. Science Center Objects Maria, and Drobniak, Agnieszka,Mercury and pyritic sulfur reduction by preparation of U.S.

Illinois Basin coals: International Conference on Mercury as a Global Pollutant, Providence, RI, July Drobniak, Agnieszka, Scott, Clint, and Scott, Anne,Mercury and pyritic.

Indiana Center for Coal Technology Research 12 SULFUR IN COAL Although coal is primarily a mixture of carbon (black) & hydrogen (red) atoms, sulfur atoms (yellow) are also trapped in coal, primarily in two forms. In one form, (1) the sulfur is a separate particle often linked with iron (green, pyritic sulfur) with no connection to the carbon.

sulfur coals is inadequate and is expected to remain so. By shifting available low-sulfur coal to plants not meeting primary standards from plants which could burn higher sulfur coal and still meet the primary standards, some improvement in ambient air quality could be achieved.

It is estimated that a shift of as much as 36 million tons could. The high-sulfur content of Illinois coal requires expensive technology to burn it cleanly enough to meet environmental regulations. Competition from low-cost, low-sulfur western coal has resulted in the closing of a number of Illinois coal mines and in the loss of mining jobs.

However, new technologies now being studied will in the future. COAL RESOURCES OF ILLINOIS* M, E. Hopkins and Jack A. Simon COAL RESERVES IN ILLINOIS Illinois IS blessed with abundant coal, the fuel that at present represents the naticnqs best hope of becoming more self-sufficient in energy production in the f-~.ture.

of the variation in the ash and sulfur content from one area to another. In some areas the sulfur content of the run-of-mine coal may be less than per cent. A suitable metallurgical coal can be produced from many of the higher per cent sulfur run-of-mine coals by crushing to. USA Illinois basin Table 1.

Total sulfur contents for selected coalfields of major coal producing countries Sulfur Form Figure 1. Ratio of pyritic sulfur/organic sulfur as a function of total sulfur content Sulfur present in coal exists as both inorganic and organic forms.

The inorganic form isFile Size: KB. Purchase Processing and Utilization of High-Sulfur Coals V, Volume 21 - 1st Edition. Print Book & E-Book. ISBNBook Edition: 1. What Is Coal Preparation. • Coal preparation is the removal of undesirable material from the Run-of-Mine (ROM) coal by employing separation processes which are able to differentiate between the physical and surface properties of the coal and the impurities.

Through coal preparation, a uniform product is Size: KB. Chemical analyses of 81 samples of coal from the Illinois Basin suggested the occurrences, in many instances, of a separate zinc sulfide phase. Field investigations proved this, and a number of sphalerite samples were collected for study from coals in northeastern, southeastern, and northwestern by: techniques were used to evaluate the removal of organic sulfur from three coals by the Ames oxydesulfurization process.

Experimental Coals. The three coals chosen for the desulfurization experiments were high-volat île C bituminous coals. Lovilia/ROM was a run-of-mine coal from Monroe County, Iowa, and wasCited by:. Sulfur varieties in Illinois coals: float-sink tests / (Urbana, Ill.: Illinois State Geological Survey, ), by Roy John Helfinstine, Jack Aaron Simon, Neil F.

Shimp, and Illinois State Geological Survey (page images at HathiTrust; US access only). A geochemical model of the formation of organic sulfur in SHOS coals proposed by Li and Tang () suggests that a cycle model consisting of sulfur reduction, reoxidation, and disproportionation can convert more sulfate to non-oxidized sulfur, which is easily absorbed by peat or coal seams.

Such a model can result in the enrichment of organic Author: Qiaojing Zhao, Yongjie Niu, Zhizhong Xie, Kuangming Zhang, Jinming Zhou, SI Arbuzov.The processing of high organic sulfur content coals with methanol and ethanol as supercritical solvents has resulted in reduction in sulfur concentrations exceeding 50%.

Since the total sulfur removed exceeds the mineral sulfur content of the coal processed, it is evident that organic sulfur is being removed during the reaction. The resulting solid product maintains over 50% of the.