Effect of hydrogenation of liquefied heavy oil on direct coal liquefaction
| Autor: | Huixin Weng, Shan Xiangen, Hongbo Jiang, Cao Xueping, Wang Hongxue, Geping Shu, Xuwen Zhang, Li Kejian |
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| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
Materials science Hydrogen 020209 energy General Chemical Engineering Organic Chemistry Mixing (process engineering) Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology Coal liquefaction Solvent Boiling point Fuel Technology Hydrocarbon Chemical engineering chemistry Yield (chemistry) 0202 electrical engineering electronic engineering information engineering Space velocity |
| Zdroj: | Fuel. 194:291-296 |
| ISSN: | 0016-2361 |
| Popis: | The effect of hydrotreatment of liquefied heavy oil on direct coal liquefaction (DCL) was studied by hydrogenating the liquefied heavy oil (initial boiling point greater than 320 °C) in a 30 ml continuous hydrogenation apparatus at operating conditions of pressure ( P ) 13–19 MPa, temperature ( T ) 360–400 °C, liquid space velocity ( LHSV ) 0.6–1.4 h −1 . After hydrogenation, the properties and hydrocarbon composition of liquefied heavy oil were regulated, leading to the enhancement of hydrogen donating ability and 5.6% increase in oil yield of DCL as compared with non-hydrogenated raw oil. Based on the results, a new method of preparing recycle solvent for direct coal liquefaction by mixing hydrogenated heavy oil and un-hydrogenated middle oil in a suitable proportion was proposed, which has been verified to be effective and efficient to increase oil yield. |
| Databáze: | OpenAIRE |
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