Internal rearrangement of hydrogen during heating of coals with phenol |
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| Authors: | John W Larsen Terry L Samst Billy R Rodgers |
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| Affiliation: | 1. Chemistry Division, Oak Ridge National Laboratory, PO Box X, Oak Ridge, Tennessee 37830, USA;2. Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37916, USA;2. Chemical Technology Division, Oak Ridge National Laboratory, PO Box X, Oak Ridge, Tennessee, 37830, USA |
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| Abstract: | Heating either Bruceton or Wyodak coal with phenol results in the thermal depolymerization of the coal yielding pyridine-soluble products and an insoluble residue. The depolymerization is accompanied by extensive rearrangements of hydrogen within the coals producing a soluble material enriched in hydrogen and a residue which is hydrogen poor. The hydrogen shuttle in Wyodak coal has a different temperature dependence than does the depolymerization, being favoured at higher temperatures. The ratio of the soluble products increased with increasing conversion. Relatively small amounts (ca. 5%) of the products at high conversion are derived from phenol. |
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