In situ conversion of coal. Final report, June 1, 1975--November 30, 1977. [Tulupov, muetherties and other catalysts]

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One of the factors which encouraged us to search for very mild liquefaction conditions was the reported existence of a variety of catalysts capable of causing the hydrogenation of aromatics at room temperature or slightly above and at hydrogen pressures of one or two atm. A number of such systems are described in James book. (Homogeneous Hydrogentation by B. R. James). Each promising system was tested with coal; nothing worked. Intermolecular hydride transfer from a variety of compounds to carbonium ions is a well known, well studied reaction and has been reviewed. The reaction developed uses BF/sub 3/.H/sub 2/O as ... continued below

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Larsen, J.W. October 1, 1977.

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One of the factors which encouraged us to search for very mild liquefaction conditions was the reported existence of a variety of catalysts capable of causing the hydrogenation of aromatics at room temperature or slightly above and at hydrogen pressures of one or two atm. A number of such systems are described in James book. (Homogeneous Hydrogentation by B. R. James). Each promising system was tested with coal; nothing worked. Intermolecular hydride transfer from a variety of compounds to carbonium ions is a well known, well studied reaction and has been reviewed. The reaction developed uses BF/sub 3/.H/sub 2/O as the acid and Et/sub 3/SiH as the hydride donor. The organic compound to be reduced is protonated by the BF/sub 3/.H/sub 2/O to give a carbonium ion which then hydride abstracts from the Et/sub 3/SiH. Thus, half of the hydrogen introduced comes from water and the other half from the hydride donor. Two features of this reaction exist. One, it is a very mild reduction of aromatics which should find synthetic utility. Second, some sulfur is removed from coals under very mild conditions together with some conversion of bituminous coals.

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Dep. NTIS, PC A02/MF A01.

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  • Report No.: COO/0066-2
  • Grant Number: EY-76-S-02-0066
  • DOI: 10.2172/5237189 | External Link
  • Office of Scientific & Technical Information Report Number: 5237189
  • Archival Resource Key: ark:/67531/metadc1071653

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  • October 1, 1977

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  • Feb. 4, 2018, 10:51 a.m.

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  • March 29, 2018, 1:08 p.m.

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Larsen, J.W. In situ conversion of coal. Final report, June 1, 1975--November 30, 1977. [Tulupov, muetherties and other catalysts], report, October 1, 1977; United States. (digital.library.unt.edu/ark:/67531/metadc1071653/: accessed October 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.