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Thursday, July 30, 2020 | History

1 edition of New sulfide catalysts for the hydroliquefaction of coal found in the catalog.

New sulfide catalysts for the hydroliquefaction of coal

New sulfide catalysts for the hydroliquefaction of coal

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Published by Commission of the European Communities in Luxembourg .
Written in English


Edition Notes

StatementJ.P.R. Vissers[...et al.].
SeriesEnergy
ContributionsVissers, J. P. R., Commission of the European Communities. Directorate-General for Science, Research and Development.
ID Numbers
Open LibraryOL14936709M
ISBN 100119710951

We carried out an extensive study of the potential of the HF:BF/sub 3//H/sub 2/ system for coal hydroliquefaction. Under varying conditions of reactant ratio, reaction time and temperature, we were able to obtain over 95% pyridine extractible product by treating coal in HF:BF/sub 3/:H/sub 2/ system at approx. /sup 0/C for 4 hours. Characterisation of Coal Liquids Obtained by Direct Liquefaction Catalysts for Direct Coal Liquefaction --Denis Uzio (IFP Energies nouvelles) Dissolved Catalysts Fine Powder Catalysts Supported Catalysts Direct Coal Hydroliquefaction Processes --Wilfried Weiss (IFP Energies nouvelles)

The results revealed that glucose and glycerol are the most suitable sacrificial agents for an oxide photocatalyst. Triethanolamine is the ideal sacrificial agent for carbon and sulfide photocatalyst. A remarkable amount of H 2 was produced from the photolysis of sodium sulfide and sodium sulfide/sodium sulfite mixture without any photocatalyst. @article{osti_, title = {Chemistry and catalysis of coal liquefaction catalytic and thermal upgrading of coal liquid and hydrogenation of CO to produce fuels. Quarterly progress report, July-September }, author = {Wiser, W. H.}, abstractNote = {Studies on the basic properties of supported sulfide catalysts showed that different supports have a profound influence on catalytic.

Abstract. This paper reviews our recent work in the study of the principal reactions occurring in the hydroliquefaction of Victorian Morwell brown coal and the mechanisms of iron and tin catalysts in promoting the formation of liquids during the liquefaction reaction. The structures of the supported binary sulfide catalysts, such as Ni‐Mo/Al 2 O 3 or Ni‐W/Al 2 O 3 catalysts, used in hydrotreating were analyzed by the X‐ray absorption fine structure method. The catalytically active phase of the “Ni‐Mo(W)‐S” structure was found to decompose into bulk single sulfides, particularly when the feedstock contained large amounts of nitrogen‐ or.


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New sulfide catalysts for the hydroliquefaction of coal Download PDF EPUB FB2

TY - BOOK. T1 - New sulfide catalysts for the hydroliquefaction of coal. AU - Vissers, J.P.R. AU - Oers, van, E.M. AU - Beer, de, V.H.J. AU - Prins, R.

New sulfide catalysts for the hydroliquefaction of coal. Abstract. Possibilities for the preparation of new metal sulfide catalyst systems based on carbon carriers having favourable textural and surface properties have been explored, and attention has been given to the characterization (structure) and evaluation (hydrosulfurization.

Title: New sulfide catalysts for the hydroliquefaction of coal: Author: Vissers, J.P.R., Oers, van E.M., Beer, de V.H.J., Prins, R. Publisher: Department of Chemical Author: Jpr Vissers, van Em Oers, de Vhj Vincent Beer, R Roel Prins.

In conclusion, catalysis of coal hydroliquefaction by highly dispersed iron sulfide catalysts has to take into account strong effects of the "coke" deposited on the Fe 1_ xS, H surface. 2S 1) This "coke" is responsible for the increased resistance of Cited by: 1. Fuel Processing Technology, 12 () Elsevier Science Publishers B.V., Amsterdam -- Printed in The Netherlands EVOLUTION OF HIGHLY DISPERSED CATALYSTS DURING HYDROLIQUEFACTION OF COAL G.

DJEGA-MARIADASSOU1 M. BESSON2 D. BRODZKI1 H. CHARCOSSET2 TRAN VINH HUU2 and J. VARLOUD2 Iuniversit6 P&M Curie, Laboratoire de Cited by:   Fuel Processing Technology, 28 () Elsevier Science Publishers B.V., Amsterdam Evaluation of catalytic activity in hydroliquefaction of coal R.

Bacaud Institut de Recherches sur la Catalyse, 2 Avenue Albert Einstein, Villeurbanne Cedex (France) (Received November 22nd ; accepted March 1 lth, } Abstract A methodology for the evaluation of catalyst. Effect of Wyodak coal properties on hydroliquefaction reactivity. Fuel64 (9), DOI: /(85) Toshimitsu Suzuki, Osamu Yamada, Yasuhiko Takahashi, Yoshihisa Watanabe.

Hydroliquefaction of low-sulfur coals using iron carbonyl complexes—Sulfur as catalysts. TABLE 3 Hydroliquefaction of Freyming coal at effect of the concentration of NiMo/Al % added Solubility in N/N + T % consumed catalyst/coal (wt % maf coal) THF Toluene Hexane 0 85 41 8 85 45 12 84 41 14 2 83 48 17 3 91 65 16 98 With the powdered NiMo/Al catalyst (Table 3.

Catalysis of both catalysts nickel sulfide and iron sulfide was observed under initial hydrogen pressuresand MPa at the temperature of °C for 30 min. From Fig. 3, it can be noted that catalytic effect on conversion and oil yield keeps nearly same in the pressure range varying from to MPa.

Solvent–Coal–Mineral Interaction during Solvent Extraction of Coal. Energy & Fuels26 (11), DOI: /ef Zhenyu Liu, John W. Zondlo, and Dady B.

Dadyburjor. Coal/Tire Coliquefaction Using an Iron Sulfide Catalyst Impregnated in Situ in the Coal. Characterization of Impregnated Iron Catalysts on Coal.

Energy & Fuels10 (1), DOI: /efw. Caroline E. Burgess and, Harold H. Schobert. Effect of Coal Characteristics and Molybdenum Sulfide Catalyst on Conversions and Yields of. Functionalized Surfactants as Precursors to Dispersed Coal Liquefaction Catalysts. Energy & Fuels10 (4), DOI: /efj.

Chunshan Song and Ajay K. Saini. Strong Synergistic Effect between Dispersed Mo Catalyst and H2O for Low-Severity Coal Hydroliquefaction. Besson's 11 research works with citations and 49 reads, including: The development of a new iron catalyst for the direct hydrogenation of coal.

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. Pure Fe oxide and Fe oxide doped with Cr, V, Mo, Zr, Ti, Al, Th, W, and Sn were tested as catalysts in the hydroliquefaction of bituminous coal, dehydrogenation of Tetralin [], and.

Copper catalysts for the hydrolysis of acrylonitrile. Deactivation of catalysts in 1-butanol dehydration. Role of cobalt and nickel added to molybdenum-alumina in hydrotreating catalysts.

Poisoning of hydrodesulfurization catalysts by vanadium. Mild hydrocracking. Coking of iron sulfide catalysts during hydroliquefaction of coal. Chapter 2 Carbon-Supported Iron Sulfide Catalysts Chapter 3 A1umina- and Stlica-Snpported Iron Sulfide Catalysts New verslons of carbonization processes, namely pyrolysis, hydropyrolysis, and others such.

(or coal hydroliquefaction) catalysts. CATALYSTS IN DIRECT COAL LIQUEFACTION. New trends in the concept of catalytic sites over sulfide upon the properties of dispersed molybdenum sulfide catalysts. Article. iron-based catalysts for the hydroliquefaction of coal.

The heteroatoms, especially nitrogen, are highly poisonous to the metal or sulfide catalysts for upgrading of Jatropha bio-oil. To overcome this technical problem, we reported a stepwise strategy for hydrotreating of wt.% Jatropha bio-oil over mesoporous sulfide catalysts (CoMo/γ-Al 2 O 3 and NiMo/γ-Al 2 O 3) to produce drop-in transport.

Iron Mössbauer spectroscopy has been performed on 38 residues of hydroliquefaction of the French bituminous Freyming coal, without and with added iron based catalysts. 56 to 94 % of the area of. USA US06/, USA USA US A US A US A US A US A US A US A US A US A Authority US United States Prior art keywords coal process catalyst iron solvent Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.Activated carbon (AC) was modified by H 2 SO 4 and used as a support for catalyst.

The Fe 2 S 3 /AC-T catalyst was prepared by deposition-precipitation method and used to catalyze hydrocracking of coal-related model compound, di(1-naphthyl)methane (DNM).

The properties of catalyst were studied by N 2 > adsorption-desorption, X-ray diffraction, and scanning electron microscopy.Hydro-conversion of coal hydroliquefaction residue obtained from a 6t/day pilot plant of Shenhua Group in Shanghai was carried out under the hydrotreating condition.

The coal hydroliquefaction residue and its product were extracted in sequence with n-hexane, toluene and tetrahydrofuran in a Soxhlet apparatus. The n-hexane soluble fractions increased with the increase of reaction temperature.