skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Staged fluidized bed

Patent ·
OSTI ID:6929142

The invention relates to oil shale retorting and more particularly to staged fluidized bed oil shale retorting. Method and apparatus are disclosed for narrowing the distribution of residence times of any size particle and equalizing the residence times of large and small particles in fluidized beds. Particles are moved up one fluidized column and down a second fluidized column with the relative heights selected to equalize residence times of large and small particles. Additional pairs of columns are staged to narrow the distribution of residence times and provide complete processing of the material.

DOE Contract Number:
W-7405-ENG-48
Assignee:
Dept. of Energy
Application Number:
ON: DE84010985
OSTI ID:
6929142
Resource Relation:
Other Information: Portions are illegible in microfiche products
Country of Publication:
United States
Language:
English