Apparatus for oil shale retorting

Details Apparatus for oil shale retorting Apparatus for oil shale retorting

1984-08-02

1986-10-28

Czaja, Donald

Distillation: apparatus

Apparatus

Systems

201 28, 202 88, 202 99, C10B 104

Patent

active

046197389

ABSTRACT:
A cascading bed retorting process and apparatus in which cold raw crushed shale enters at the middle of a retort column into a mixer stage where it is rapidly mixed with hot recycled shale and thereby heated to pyrolysis temperature. The heated mixture then passes through a pyrolyzer stage where it resides for a sufficient time for complete pyrolysis to occur. The spent shale from the pyrolyzer is recirculated through a burner stage where the residual char is burned to heat the shale which then enters the mixer stage.

REFERENCES:
patent: 2377512 (1945-06-01), Page
patent: 3503869 (1970-03-01), Haddad et al.
patent: 4336128 (1982-06-01), Tamm
patent: 4377465 (1983-03-01), York
patent: 4404086 (1983-09-01), Oltrogge
patent: 4539917 (1985-04-01), Mallon et al.

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