| 摘要 |
PROBLEM TO BE SOLVED: To provide a continuous method for converting waste/virgin plastics into lubricating oils. SOLUTION: A plastic feed is maintained inside a heater (930) preferably at 150-350°C. The feed is continuously supplied to a pyrolysis reactor (30) preferably maintained at 450-700°C and at the atmospheric pressure. Relatively short residence times are employed. Optionally, a reactor effluent is processed in a hydrotreating unit (40). The effluent is fed to an isomerization dewaxing unit (50) and fractionated (50) to recover lubricating oil stocks. Preferably, the feed to the pyrolysis reactor can be a blend of waste plastic and waxy Fischer-Tropsch fractions. COPYRIGHT: (C)2010,JPO&INPIT |
