Evaluation of the hydroliquefaction potential of Chinese coals: Three case studies
| Autor: | Peifang Zhang, Jinsheng Gao, Hans Henning Oelert |
|---|---|
| Rok vydání: | 1989 |
| Předmět: |
business.industry
Chemistry General Chemical Engineering technology industry and agriculture Energy Engineering and Power Technology Liquefaction Coal conversion Coal liquefaction Pulp and paper industry complex mixtures respiratory tract diseases Fuel Technology Yield (chemistry) otorhinolaryngologic diseases Slurry Coal business |
| Zdroj: | Fuel Processing Technology. 22:161-174 |
| ISSN: | 0378-3820 |
| DOI: | 10.1016/0378-3820(89)90001-5 |
| Popis: | In bench-scale autoclaves the hydroliquefaction cross-checking tests of three typical Chinese low rank coals were performed under different conditions. The methods of coal evaluation for hydrogenation reactivity are discussed, focused upon the influence of important parameters — temperature, pressure, residence time, solvent and catalyst. The experimental results indicate that with fewer than 20 cross-checking tests by appropriate parameter variations the hydroliquefaction behaviour of the coals used could be evaluated rather satisfactorily. Shengli lignite and Yanzhou HV-bituminous coal have a high reactivity for liquefaction processing. With coal-derived slurry oil under not too severe conditions a coal conversion of ca. 80% and an oil yield of more than 50% were obtained. Xianfeng lignite is younger and therefore more sensitive than Shengli lignite. By optimizing the process parameters, an oil yield of more than 50% could possibly be attained. This paper should provide information of interest for a perspective on coal liquefaction in China. |
| Databáze: | OpenAIRE |
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