Hydrogenolysis of a sub-bituminous coal with molten zinc chloride solutions

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Hydrogenolysis of undried Wyodak sub-bituminous coal, Illinois, No. 6 bituminous coal, and solvent-refined coal (SRC) with liquid zinc chloride containing water and certain additives has been studied at the relatively mild conditions of 250/sup 0/C and hydrogen partial pressures less than 600 psia. Various inorganic and organic additives have been examined with regard to possible catalytic activity. Organic additives increased the pyridine extractibility of the treated coal, with some indication that such additives are consumed. Qualitative evidence (i.e. the presence of naphthalene in the reaction product) was obtained that tetralin partly transferred hydrogen catalytically to the coal structure at 250/sup ... continued below

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Pages: 99

Creation Information

Holten, R.R. & Vermeulen, T. December 1, 1977.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this report can be viewed below.

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  • Lawrence Berkeley Laboratory
    Publisher Info: California Univ., Berkeley (USA). Lawrence Berkeley Lab.
    Place of Publication: Berkeley, California

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Description

Hydrogenolysis of undried Wyodak sub-bituminous coal, Illinois, No. 6 bituminous coal, and solvent-refined coal (SRC) with liquid zinc chloride containing water and certain additives has been studied at the relatively mild conditions of 250/sup 0/C and hydrogen partial pressures less than 600 psia. Various inorganic and organic additives have been examined with regard to possible catalytic activity. Organic additives increased the pyridine extractibility of the treated coal, with some indication that such additives are consumed. Qualitative evidence (i.e. the presence of naphthalene in the reaction product) was obtained that tetralin partly transferred hydrogen catalytically to the coal structure at 250/sup 0/C, in contrast to the known inability of tetralin to donate hydrogen thermally below 250/sup 0/C. In experiments with model compounds, it was found that zinc chloride melt at 250/sup 0/C has little activity for cracking carbon-carbon bonds in anthracene and 9,10-dihydroanthracene. However, it does have hydrogenation-dehydrogenation activity, as shown by the formation of tetrahydroanthracene to the extent of about 30% in one-hour runs with each of the two precursor model compounds.

Physical Description

Pages: 99

Notes

Dep. NTIS, PC A05/MF A01.

Source

  • Other Information: Thesis. Submitted by R.R. Holten

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  • Report No.: LBL-5948
  • Grant Number: W-7405-ENG-48
  • DOI: 10.2172/5222495 | External Link
  • Office of Scientific & Technical Information Report Number: 5222495
  • Archival Resource Key: ark:/67531/metadc1073902

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • December 1, 1977

Added to The UNT Digital Library

  • Feb. 4, 2018, 10:51 a.m.

Description Last Updated

  • April 24, 2018, 4:44 p.m.

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Holten, R.R. & Vermeulen, T. Hydrogenolysis of a sub-bituminous coal with molten zinc chloride solutions, report, December 1, 1977; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc1073902/: accessed May 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.