Mineral oils: processes and products – By treatment of solid mineral – e.g. – coal liquefaction – etc. – Specified agitation or circulation in gas contact zone
Patent
1984-11-06
1986-07-22
Metz, Andrew H.
Mineral oils: processes and products
By treatment of solid mineral, e.g., coal liquefaction, etc.
Specified agitation or circulation in gas contact zone
201 34, 208427, C10G 100, C10B 5306
Patent
active
046018115
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.
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Braun Robert L.
Lewis Arthur E.
Mallon Richard G.
Walton Otis R.
Caldarola Glenn A.
Carnahan L. E.
Hightower Judson R.
Metz Andrew H.
Sartorio Henry P.
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