Nonsolvent coal hydrogenation at short contact time
โ Scribed by Yoshiki Sato; Kazutoshi Imuta; Toshio Yamakawa
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 486 KB
- Volume
- 58
- Category
- Article
- ISSN
- 0016-2361
No coin nor oath required. For personal study only.
โฆ Synopsis
Yields and properties of products on hydrogenation
of Japanese and Australian coals have been studied using an autoclave equipped with a magnedrive device at temperatures of 500-600ยฐC and hydrogen pressure 4.9-14.7
MPa (gauge) in the absence of solvent. Optimum contact time, at which maximum extraction yield was observed, shifted from 15 s to a few seconds with increasing reaction temperature and hydrogen pressure. The extracts derived from both coals reveal similar structural parameters.
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The roles of the vehicle and gaseous hydrogen during short contact time liquefaction (SCTL) in microreactors were examined by using a number of synthetic vehicles. The importance of vehicles during SCTL was evaluated on their ability to convert coal to tetrahydrofuran (THF)-soluble products. Reactio