Use of coal liquefaction catalysts for coal/oil coprocessing and heavy oil upgrading

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The catalytic hydrogenation of coal and model solvents using dispersed or supported catalysts at different pressures has been the focus of several recent studies at PETC. The effectiveness of these catalysts has been studied in coal liquefaction and coal-oil coprocessing. Coal-oil coprocessing involves the co-reaction of coal and petroleum-derived oil or resid. The results of these studies have indicated that both dispersed and supported catalysts are effective in these systems at elevated H{sub 2} pressures ({approximately}2,500 psig). Attempts to reduce pressure indicated that a combination of catalyst concentration and solvent quality could be used to compensate for reductions in H{sub ... continued below

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9 p.

Creation Information

Cugini, A.V.; Krastman, D.; Thompson, R.L.; Gardner, T.J. & Ciocco, M.V. April 1, 1997.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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The catalytic hydrogenation of coal and model solvents using dispersed or supported catalysts at different pressures has been the focus of several recent studies at PETC. The effectiveness of these catalysts has been studied in coal liquefaction and coal-oil coprocessing. Coal-oil coprocessing involves the co-reaction of coal and petroleum-derived oil or resid. The results of these studies have indicated that both dispersed and supported catalysts are effective in these systems at elevated H{sub 2} pressures ({approximately}2,500 psig). Attempts to reduce pressure indicated that a combination of catalyst concentration and solvent quality could be used to compensate for reductions in H{sub 2} pressure. Comparison of the coal and coprocessing systems reveals many similarities in the catalytic requirements for both systems. Both hydrogenation and hydrogenolysis activities are required and the reactive environments are similar. Also, the use of catalysts in the two systems shares problems with similar types of inhibitors and poisons. The logical extension of this is that it may be reasonable to expect similar trends in catalyst activity for both systems. In fact, many of the catalysts selected for coal liquefaction were selected based on their effectiveness in petroleum systems. This study investigates the use of supported and dispersed coal liquefaction catalysts in coal-oil coprocessing and petroleum-only systems. The focus of the study was delineating the effects of coal concentration, pressure, and catalyst type.

Physical Description

9 p.

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OSTI as DE97004632

Medium: P; Size: 9 p.

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  • 213. national meeting of the American Chemical Society, San Francisco, CA (United States), 13-17 Apr 1997

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  • Other: DE97004632
  • Report No.: SAND--96-2598C
  • Report No.: CONF-970443--18
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 471453
  • Archival Resource Key: ark:/67531/metadc677436

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  • April 1, 1997

Added to The UNT Digital Library

  • July 25, 2015, 2:21 a.m.

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  • April 13, 2017, 2:57 p.m.

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Cugini, A.V.; Krastman, D.; Thompson, R.L.; Gardner, T.J. & Ciocco, M.V. Use of coal liquefaction catalysts for coal/oil coprocessing and heavy oil upgrading, article, April 1, 1997; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc677436/: accessed October 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.