Oil shale retorting process with raw shale preheat prior to pyro

Details Oil shale retorting process with raw shale preheat prior to pyro Oil shale retorting process with raw shale preheat prior to pyro

1980-05-27

1982-06-01

Tufariello, T.

Mineral oils: processes and products

Products and compositions

Lubricating oils

C10G 102

Patent

active

043326692

ABSTRACT:
Disclosed is an improved process for retorting oil shale in a staged turbulent bed retort wherein the raw shale feed particles are classified and deaerated into first and second fractions, said first fraction containing substantially only shale particles above about 25 mesh. The first fraction is then preheated with hot shale fines in a dilute phase lift pipe prior to retorting.

REFERENCES:
patent: 2285276 (1942-06-01), Hemminger
patent: 3784462 (1974-01-01), Frick
patent: 3972801 (1976-08-01), Gregoli
patent: 3976558 (1976-08-01), Hall

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