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The chemical nature of flash pyrolysis tars. An N.M.R. study

✍ Scribed by John R. Kershaw; Barry A. Kelly


Publisher
Elsevier Science
Year
1983
Tongue
English
Weight
639 KB
Volume
7
Category
Article
ISSN
0378-3820

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πŸ“œ SIMILAR VOLUMES


1H n.m.r. study of tars from flash pyrol
✍ Philip J. Collin; Ralph J. Tyler; Michael A. Wilson πŸ“‚ Article πŸ“… 1980 πŸ› Elsevier Science 🌐 English βš– 665 KB

The structure and composition of tars from the flash pyrolysis of one brown and two bituminous Australian coals were investigated by 'H n.m.r. spectroscopy. Reaction times in a fluidized bed were about 1 s. For each tar the aromatic hydrogen content increases slightly with pyrolysis temperature up t

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The results reported indicate that the low molecular weight olefins (ethylene, propylene and butadiene) which are major gaseous hydrocarbon products of flash pyrolysis of coal derive from the same precursors in coal, whereas methane, benzene and other pyrolysis products are mainly formed from differ

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## Abstract ^1^H n.m.r. is used to show that α‐mercaptoacetone is formed as a mixture of monomer and a dimer. No evidence is found to support the previously claimed isolation of two dimeric species. The dimer dissociates to the monomer on standing as a solution in chloroform, but the monomer is dim

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