Donor solvent interactions during coal liquefaction
โ Scribed by B. Woodfine; W. Steedman; W. Kemp
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 602 KB
- Volume
- 68
- Category
- Article
- ISSN
- 0016-2361
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๐ SIMILAR VOLUMES
As part of research to examine coal conversion in solvents containing high-boiling-point components, experimental studies were carried out with model compound solvents. The dissolution of bituminous and subbituminous coals was investigated in pyrene-tetralin and 2-methylnaphthalen+tetralin mixtures.
## Batch autoclave experiments show that pre-swelling of bituminous and lower rank coals with a suitable solvent, followed by removal of the swelling agent, significantly enhances conversion and product quality during subsequent liquefaction. The enhancement depends on coal rank and swelling agen
Most coal liquefaction processes are based on the thermal cleavage of activated bonds giving reactive carbon and oxygen radicals which abstract hydrogen atoms from the donor solvent. The role of oil is approximated in this study by using a simple standard reaction. A series of five representative so