Importance

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Abstract

A fixed fluidized particulate solids bed heat recovery vessel or steam generator having indirect heat exchange means within a bed of fluidized carbonaceous solids, such as coke, pelleted carbon black and the like, and introduction of a gas containing entrained solids to effect fluidization of the bed of carbonaceous solids wherein in a preferred embodiment, the reaction effluent from a carbon black reaction zone comprising carbon black suspended in a non-oxidizing gas is preferably quenched, e.g., using water and/or cooled recycled reaction effluent and is then further cooled using a fluidized fixed bed of carbonaceous solids having a cooling coil within the fluidized bed.

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First Claim