COMBUSTION CHARACTERISTICS OF HYDRORETORTED ALABAMA OIL-SHALE

[摘要] Pressurized fluidized bed hydroretorting of beneficiated eastern USA oil shale leaves sufficient carbon (15-27 wt%) in the retorted shale to warrant utilization of that calorific value by combustion. A sample of hydroretorted shale from a bench scale unit test (oil yield was 233% of Fischer Assay) was used as a feedstock for combustion tests using air. The tests were conducted at 815-1080-degrees-C, 0.1-7 MPa and residence times from 1 to 30 min in a thermobalance unit and a continuous (0.5 kg h-1) fluidized bed laboratory scale unit. Thermobalance tests indicate that combustion of the shale begins at 260-315-degrees-C depending on the oxygen partial pressure used. Carbon conversions up to 100%, with greater than 99.5% recovery, of the gross calorific value of the shale were achieved.

[发布日期] 1994-09-01

[效力级别]  Proceedings Paper

[关键词] OIL SHALE;HYDRORETORTING;COMBUSTION CHARACTERISTICS