Fluid coking process

Details Fluid coking process Fluid coking process

1980-03-03

1981-10-20

Tufariello, T. M.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208162, C10G 932

Patent

active

042959560

ABSTRACT:
A fluid coking process is provided in which the recycling of coke particles of less than about 44 microns in diameter to the coking reactor is minimized by passing the stream of coke withdrawn from the coking reactor to a vessel comprising a fluidized bed of solids separated into two zones. The coke withdrawn from the coker is passed into one zone where seed generation for the process is performed. Coke recycled to the coker is withdrawn from the second zone which is operated as an elutriation zone. The solid fines of less than 44 microns are removed overhead from the vessel with the gaseous effluent of the vessel. This improvement is particularly suitable for once-through fluid coking to minimize small fines being present in the coker liquid product.

REFERENCES:
patent: 2865847 (1958-12-01), Jahnig
patent: 3228872 (1966-01-01), Metrailer
patent: 4055484 (1977-10-01), Blaser

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