Effects of zinc chloride on the cleavage of ether structures present in coal
โ Scribed by David P. Mobley; Alexis T. Bell
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 685 KB
- Volume
- 58
- Category
- Article
- ISSN
- 0016-2361
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โฆ Synopsis
A number of compounds which model the ether structures found in coal were subjected to reaction in the presence of ZnCI2. Both cyclic and non-cyclic ethers reacted, provided that at least one methylene group was present adjacent to the ether oxygen atom. Complete elimination of oxygen to form water was achieved with dibenzyl and cycloaliphatic ethers, but oxygen bonded directly to a phenyl or naphthyl group was converted to an unreactive phenolic hydroxyl group.
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Study of the catalytic effects of zinc chloride (ZnCl,) in the slow pyrolysis of two Spanish high sulphur coals showed that the behaviour of ZnCl, was modified by the presence of organic sulphur and minerals such as calcite and pyrite in the coals. The desulphurization of chars from impregnated coal
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