Incorporation of quinoline into coal and coal-derived products
| Autor: | Bruce R. Utz, Herbert R. Appell, Nand K. Narain, Bernard D. Blaustein |
|---|---|
| Rok vydání: | 1983 |
| Předmět: |
medicine.medical_specialty
Precipitation (chemistry) Hydrogen bond business.industry General Chemical Engineering Organic Chemistry Quinoline Inorganic chemistry technology industry and agriculture Carbochemistry Energy Engineering and Power Technology Adduct Catalysis chemistry.chemical_compound Fuel Technology chemistry medicine Coal Solubility business |
| Zdroj: | Fuel. 62:1417-1421 |
| ISSN: | 0016-2361 |
| DOI: | 10.1016/0016-2361(83)90109-6 |
| Popis: | Quinoline forms an adduct with Bruceton hvAb coal at temperatures < 250 °C in the absence of H2 pressure and catalyst. The extent of quinoline incorporation into Bruceton coal was both time and temperature dependent. After 4 h at 200 °C, ≈ 20 wt% of quinoline had incorporated into the coal, as indicated by solubility measurements. A dissolution-precipitation technique was employed to permit a clean separation of physically-entrapped quinoline from the crude adduct. The crude adduct isolated in the first precipitation step had ≈ 75% of its quinoline content physically entrapped and 25% chemically bound, presumably by hydrogen bonding to acidic centres. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|