Role of non-ferrous coal minerals and by-product metallic wastes in coal liquefaction. Technical progress report, June 1, 1980-August 31, 1980

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Additional data on the pyrite catalysis of liquefaction of Elkhorn number 3 coal are presented. The liquefaction of Elkhorn number 3 coal was significantly catalyzed by the presence of pyrite. Coal conversion, oil yield and preasphaltene conversion all increased when pyrite was added. An increase in hydrocarbon gas make accompanied by a higher hydrogen consumption were also observed. The higher activity in the presence of pyrite could be utilized by running the liquefaction step at milder conditions which would mean a lower gas make. Although we had heard reports that sulfur elimination from the SRC was improved by use of ... continued below

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Pages: 131

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Garg, D; Givens, E N; Schweighardt, F K; Clinton, J H; Tarrer, A R; Guin, J A et al. September 1, 1980.

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Additional data on the pyrite catalysis of liquefaction of Elkhorn number 3 coal are presented. The liquefaction of Elkhorn number 3 coal was significantly catalyzed by the presence of pyrite. Coal conversion, oil yield and preasphaltene conversion all increased when pyrite was added. An increase in hydrocarbon gas make accompanied by a higher hydrogen consumption were also observed. The higher activity in the presence of pyrite could be utilized by running the liquefaction step at milder conditions which would mean a lower gas make. Although we had heard reports that sulfur elimination from the SRC was improved by use of pyrite, our data showed only very small changes. Nitrogen removal from the solvent, however, was definitely observed. At 850/sup 0/F nitrogen in the oil product went from 1.61 to 1.12 on adding pyrite. This increased nitrogen removal was also seen in the added ammonia yields. Kentucky number 9 coal also responded very well to the presence of pyrite. Conversions and oil yields increased while the hydrocarbon yields decreased at both temperatures that were tested, i.e., 825 and 850/sup 0/F. Hydrogen consumptions also increased. In the screening program the results from testing a number of materials are reported. None of the zeolites gave any significant improvement over coal itself. The iron, molybdenum, nickel, and cobalt rich materials had significant activity, all 85 to 90% conversion with high oil yields.Among materials specifically reported this period the clays failed to show any significant catalytic effect.

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Pages: 131

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NTIS, PC A07/MF A01.

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  • Report No.: DOE/ET/14806-T1
  • Grant Number: AC22-79ET14806
  • DOI: 10.2172/6517980 | External Link
  • Office of Scientific & Technical Information Report Number: 6517980
  • Archival Resource Key: ark:/67531/metadc1206621

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  • September 1, 1980

Added to The UNT Digital Library

  • July 5, 2018, 11:11 p.m.

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  • Oct. 19, 2018, 1:13 p.m.

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Garg, D; Givens, E N; Schweighardt, F K; Clinton, J H; Tarrer, A R; Guin, J A et al. Role of non-ferrous coal minerals and by-product metallic wastes in coal liquefaction. Technical progress report, June 1, 1980-August 31, 1980, report, September 1, 1980; United States. (digital.library.unt.edu/ark:/67531/metadc1206621/: accessed December 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.