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3 edition of Mineral matter effects and catalyst characterization in coal liquefaction found in the catalog.

Mineral matter effects and catalyst characterization in coal liquefaction

Sandia Laboratories.

Mineral matter effects and catalyst characterization in coal liquefaction

project no. 8008 ; prepared by Sandia Laboratories, for the United States Department of Energy

by Sandia Laboratories.

  • 399 Want to read
  • 14 Currently reading

Published by Dept. of Energy, Sandia Laboratories, for sale by the National Technical Information Service in Albuquerque, N.M, Springfield, Va .
Written in English

    Subjects:
  • Coal liquefaction,
  • Catalysts

  • Edition Notes

    SeriesSAND ; 78-0634
    ContributionsGranoff, Barry, joint author, Thomas, M. G. joint author, United States. Dept. of Energy, Sandia Laboratories, Sandia Laboratories. Geo Energy Technology Dept
    The Physical Object
    Paginationv. :
    ID Numbers
    Open LibraryOL14882882M

    This is the final report of a study of mineral matter effects in coal liquefaction. The objectives were to: (1) determine the general effects of mineral content on product composition for residence times of 2, 10, and 40 minutes and (2) determine the specific catalytic effects of several iron sulfides on coal conversion and product quality. The Chemistry and Technology of Coal, The book will prove useful for scientists and engineers already engaged in the coal and/or catalyst manufacturing industry looking for a general overview or update on the clean coal technology as well as professional researchers and students in chemistry and engineering. Effect of Mineral Matter in.

    Effects of coal beneficiation and solvent quality on short contact time liquefaction of bituminous coal. Technical Report. A series of beneficiated coals (Illinois No. 6) from the Burning Star Mine No. 2 were evaluated in a bench scale continuous coal liquefaction unit. Direct coal liquefaction (DCL) converts solid coal (H/C ratio ≈ ) to liquid fuels (H/C ratio ≈ 2) by adding hydrogen at high temperature and pressures in the presence or absence of catalyst.

    Additional Physical Format: Online version: Davidson, Robert M. Mineral effects in coal conversion. London: IEA Coal Research, (OCoLC) Effect of Feedstock Types. The types of blending fuels ought to be a major factor that can intrigue the synergy. It has been shown that many blends of biomass species and coal, such as hazelnut shell and coal [], legume straw and coal [], sawdust and coal [], microalgae and coal [], corncob and coal [], and corn stalk and subbituminous coal [], exhibit synergetic effects during Cited by:


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Mineral matter effects and catalyst characterization in coal liquefaction by Sandia Laboratories. Download PDF EPUB FB2

Get this from a library. Mineral matter effects and catalyst characterization in coal liquefaction: (Project no.

[Barry Granoff; M G Thomas; Sandia Laboratories.; United States. Department of Energy.; Sandia Laboratories. Geo Energy Technology Department.].

Direct Liquefaction of High-Sulfur Coals: Effects of the Catalyst, the Solvent, and the Mineral Matter. Energy & Fuels16 (5), DOI: /ef COVID Resources. Reliable information about the coronavirus (COVID) is available from the World Health Organization (current situation, international travel).Numerous and frequently-updated resource results are available from this ’s WebJunction has pulled together information and resources to assist library staff as they consider how to handle coronavirus.

Hence, effects of mineral matter in coal on liquefaction characteristics were concluded to depend strongly on iron content. In addition, sulfur and hydrogen sulfide were shown to have contribution to transfer of gaseous hydrogen to coal via solvent as iron (III) oxide was sulfided.

Elemental analyses by emission spectroscopy were collected on five catalysts evaluated in the H-Coal catalyst-testing programme. The major metal-contaminants identified were titanium, iron, boron, calcium, magnesium, and by: Design of tubing bomb microreactors to minimize mass transfer effects and catalyst attrition in coal liquefaction and model compound reactions.

Fuel Processing Technology22 (2), DOI: /(89) J. Nowok, Virgil I. by: Coal liquefaction residue (CLR) consists of all the mineral matters from the raw coal, many organic matters such as asphaltene and preasphaltene, and the liquefaction catalyst added in the liquefaction process.

The effective utilization of CLR will improve the economy and resource conservation of Cited by: There is, however, a lack of quantitative data character- izing deactivation of coal liquefaction catalysts.

Meaningful measurements are difficult because liquefaction takes place as a result of a complex set of reac- tions, some thermal and some catalyzed by the coal mineral matter as well as added by: 5. Chemistry of Mineral Matter and Ash in Coal: An Overview Karl S. Vorres Chapter 1, DOI: /bkch Publication Date (Print): April 2, High mineral matter content in the initial carbon precursor CLR, which is from the coal and the catalyst added in the process of coal liquefaction, may be responsible for the pore structure.

As shown in Table 4, the ash contents of W-RC THF and RC THF decrease from initial % of NW-RC THF to % and %, by: Mineral matter is generally considered to consist of all the inorganic minerals (discrete phases), as well as all elements (apart from C, H, O, N and S) that are in, or associated with, coal.

II. Mineral Matter in Coal: Origin, Characterization, and Implications for Coal-Processing Technologies III.

Combustion IV. Gasification and Liquefaction V. Silicate Chemistry at Elevated Temperature and Its Relevance to Ash Fusion Phenomena References Chemistry of Hydrogen Donor Solvents I. Introduction II.

Solvent Effects on Dissolution Rates Book Edition: 1. Catalytic and Chemical Behavior of Coal Mineral Matter in the Coal Conversion Process (), “Experimental evidence for catalyst activity of coal minerals”, Amer.

Chem. Soc. Division of Fuel Chemistry Preprints 16 (2), 68– and Neuworth, M.B. () “Disposable catalysts in coal liquefaction: the effect of iron sulfides Cited by: 4.

The mineral matter naturally occurring in coal is recognized as a coal liquefaction catalyst. Pyrite is considered to be the primary catalytic mineral. It is known to convert to pyrrhotite under reaction conditions.

Pyrrhotite is believed to be the active form of the mineral. Our investigations have shed some light on the type of reactions which can be catalyzed by the pyrite/phrrhotite : B.

Bockrath, K. Schroeder. The present state of the methods commonly used for inorganic and mineral matter characterization in coal is described and summarized. The application of various separation procedures, macroscopic observations, reflected and transmitted optical microscopy, scanning and transmission electron microscopy, X-ray diffraction, differential thermal and thermogravimetric Cited by: Devolatilization behaviour of residual chars from coal liquefaction was investigated using thermogravimetric analysis.

Effect of remained and enriched minerals on devolatilization of residual. Mössbauer and XRD Characterization of the Mineral Matter of Coal from the Guachinte Mine in Colombia Article (PDF Available) in Hyperfine Interactions (1) June with 74 Reads. @article{osti_, title = {Mineral matter and ash in coal}, author = {Vorres, K S}, abstractNote = {The ACS Division of Fuel Chemistry was responsible for the symposium, held in Philadelphia inthat gave rise to the 38 typescript papers in this volume.

They are concerned with the chemistry of coal mineral matter, coal ash properties and their prediction, coal ash deposition in. The liquefaction of Wyoming coal (subbituminous coal) was investigated with an autoclave of 50 mL capacity, using Ketjen Black (KB)-supported NiMo catalyst, which has higher hydrogenation activity of 1-methylnaphtalene than a commercial NiMo/Al2O3.

KB-supported NiMo catalyst gave the oil and oil plus asphaltene yield of 54 and 69% under reaction conditions of °C, 60 min, and 13 by: operational impacts include corrosion, fouling, and catalyst poisoning by alkali and alkaline earth metals Ca, K, Mg, and Na.

High mineral matter concentrations in the coal liquefaction residues also pose challenges in post-processing. Two coals, an Illinois No. 6 seam high volatile bituminous coal and a Cited by: 1. The purpose of this work was to determine the effects of surface area variations of iron sulphides on coal liquefaction.

Several iron sulphides were synthesized including pyrites (FeS 2) with wt% Fe, pyrrhotites (Fe 1−x S) with ~ 60 wt% Fe and iron-sulphur compounds of unknown composition.

Surface areas of the synthetic pyrites varied from 2 to ⪢ 10 m 2 g −1, pyrrhotite surface Cited by: Characterization is an important and fundamental step in material research before and after processing.

This bookfocuses on the characterization of minerals, metals, and materials as well as the application of characterization results on the processing of these [email protected]{osti_, title = {Thermal analysis of clays, minerals and coal}, author = {Earnest, C.M.}, abstractNote = {This new book details the application of the Perkin-Elmer TADS Series Thermal Analysis System (DSC, DTA, TGA, and TMA) to such materials as hectorite clay mineral, coal liquefaction residues, coal ash, limestones and dolomites.