Improvement of Product Quality and Yield on the NEDOL Coal Liquefaction Process
| Autor: | Kouji Sakawaki, Toshimitsu Suzuki, Masumi Itonaga, Kenji Inokuchi, Hirokazu Oda, Sadao Wasaka, Yoshinobu Nogami, Mochizuki Michiharu |
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| Rok vydání: | 2003 |
| Předmět: |
Waste management
Chemistry business.industry General Chemical Engineering technology industry and agriculture New energy Energy Engineering and Power Technology Coal liquefaction complex mixtures Solvent Fuel Technology Scientific method Yield (chemistry) Vaporization Degradation (geology) Coal business |
| Zdroj: | Energy & Fuels. 17:1437-1444 |
| ISSN: | 1520-5029 0887-0624 |
| DOI: | 10.1021/ef030009x |
| Popis: | To improve the product quality in the NEDOL coal liquefaction process (which was developed by the New Energy and Industrial Technology Development Organization, NEDO), improvement of the NEDOL process was proposed and tested by a continuous plant, which can process 1 ton of coal per day. In the improved process, the products and recycle solvent are simultaneously hydrogenated in the solvent hydrogenation section. Although the recycle solvent of the improved process became lighter and degradation of the recycle solvent quality was supposed, via more-severe hydrogenation conditions in the solvent hydrogenation section, the hydrogen-donating capability of the recycle solvent was maintained and degradation was not recognized. On the other hand, the hydrodynamics of the coal liquefaction reactors was studied and mean residence time of the liquid phase (MRT) in the coal liquefaction reactors was measured using neutrons. An increase in the MRT was observed, and this increase seemed to be caused by vaporization o... |
| Databáze: | OpenAIRE |
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