Oil shale loss from a laboratory fluidized bed
- Lawrence Livermore National Lab., CA (USA)
The rate of loss of dust from a laboratory-scale fluidized bed of Greenriver oil shale has been measured. The rate of loss of dust form raw shale in the bed was approximately 1%/min for the first few minutes and then decreased. The loss rate for retorted or burnt shale was 5 to 10 times higher. The rates for retorted and burned shale were nearly the same. The time required for a 10 wt% loss of mass was approximately 3 min for processed shale and 1 hour for raw shale. Particles left in the bed during fluidization lost sharp corners, but kept the original elongation. Dust lost by the bed has a very wide range of sizes and demonstrated a strong bimodal distribution of sizes. The bimodal distribution of particles is interpreted as resulting from two mechanisms of dust generation; fracture and wear.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 6776594
- Report Number(s):
- CONF-8904193-
- Journal Information:
- Oil Shale Symposium Proceedings; (USA), Vol. 22; Conference: 22. annual oil shale symposium, Golden, CO (USA), 19-20 Apr 1989
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
OIL SHALES
DUSTS
FLUIDIZED BEDS
IN-SITU RETORTING
PARTICLE SIZE
SCALE MODELS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
DECOMPOSITION
ENERGY SOURCES
FOSSIL FUELS
FUELS
IN-SITU PROCESSING
MATERIALS
PROCESSING
RETORTING
SIZE
STRUCTURAL MODELS
040401* - Oil Shales & Tar Sands- In Situ Methods
True & Modified
041000 - Oil Shales & Tar Sands- Environmental Aspects
040403 - Oil Shales & Tar Sands- Refining