Modulated molecular beam mass spectrometric studies of the high temperature pyrolysis of hydrocarbons

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The pyrolysis products of benzene and toluene were studied as functions of temperature (up to 2000/sup 0/C) and pressure. Above 1400/sup 0/C, most of the larger species are unstable; above 1700/sup 0/C, no species heavier than C/sub 6/H/sub 6/ are observed at any pressure. Above 1500/sup 0/C and at higher pressures, the products are dominated by species containing even numbers of carbon atoms (C/sub 2/ to C/sub 12/). While polyacetylenes up to C/sub 8/H/sub 2/ were observed, they are present in low abundances, with the max concentrations occurring at 1350/sup 0/C. Polycyclic aromatic hydrocarbons are formed readily. 6 figures. (DLC)

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18 pages

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Smith, R. D. July 1, 1979.

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  • Pacific Northwest Laboratory
    Publisher Info: Battelle Pacific Northwest Labs., Richland, WA (USA)
    Place of Publication: Richland, Washington

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The pyrolysis products of benzene and toluene were studied as functions of temperature (up to 2000/sup 0/C) and pressure. Above 1400/sup 0/C, most of the larger species are unstable; above 1700/sup 0/C, no species heavier than C/sub 6/H/sub 6/ are observed at any pressure. Above 1500/sup 0/C and at higher pressures, the products are dominated by species containing even numbers of carbon atoms (C/sub 2/ to C/sub 12/). While polyacetylenes up to C/sub 8/H/sub 2/ were observed, they are present in low abundances, with the max concentrations occurring at 1350/sup 0/C. Polycyclic aromatic hydrocarbons are formed readily. 6 figures. (DLC)

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18 pages

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NTIS, PC A02/MF A01.

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  • 8. international mass spectrometry conference, Oslo, Norway, 11 Aug 1979

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  • Report No.: PNL-SA-7912
  • Report No.: CONF-790893-3
  • Grant Number: AC06-76RL01830
  • Office of Scientific & Technical Information Report Number: 5166258
  • Archival Resource Key: ark:/67531/metadc1058061

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Office of Scientific & Technical Information Technical Reports

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  • July 1, 1979

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  • Jan. 22, 2018, 7:23 a.m.

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  • Nov. 9, 2020, 2:56 p.m.

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Smith, R. D. Modulated molecular beam mass spectrometric studies of the high temperature pyrolysis of hydrocarbons, article, July 1, 1979; Richland, Washington. (https://digital.library.unt.edu/ark:/67531/metadc1058061/: accessed April 25, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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