Shell Spher process
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The Shell Spher process (Shell Pellet Heat Exchange Retorting) is an above ground fluidization bed retorting technology for shale oil extraction. It is classified as a hot recycled solids technology. Raw oil shale is crushed to a fine particles. Heat is transferred to oil shale by heat-carrying ceramic balls of size . Raw oil shale is preheated in fluidized bed at the temperature of in the case if oxygen is used as fluidizing medium, or at if non-oxidizing gases are used. Heated ceramic balls fall then through the bed in counter-current direction. The preheated oil shale is further heated in the retorting vessel. The retorted spent shale is cooled in a fast-fluidized bed by the recirculated cool pellets from the preheater; while cooling the spent shale ceramic balls are heated by the spent shale.
The Shell Spher process (Shell Pellet Heat Exchange Retorting) is an above ground fluidization bed retorting technology for shale oil extraction. It is classified as a hot recycled solids technology. Raw oil shale is crushed to a fine particles. Heat is transferred to oil shale by heat-carrying ceramic balls of size . Raw oil shale is preheated in fluidized bed at the temperature of in the case if oxygen is used as fluidizing medium, or at if non-oxidizing gases are used. Heated ceramic balls fall then through the bed in counter-current direction. The preheated oil shale is further heated in the retorting vessel. The retorted spent shale is cooled in a fast-fluidized bed by the recirculated cool pellets from the preheater; while cooling the spent shale ceramic balls are heated by the spent shale.
See also
Alberta Taciuk Process Kiviter process Petrosix process Galoter process Fushun process Paraho process Lurgi-Ruhrgas process TOSCO II process
References
Text derived from https://en.wikipedia.org/w/index.php?oldid=1215917163 under CC BY-SA 4.0; modifications have been made.