초록 ▼

A method of operating a fluidized bed reactor in which a bed containing solid particulate material is fluidized by introducing air into the bed. A gas column is formed containing a mixture of the air, the gaseous products of combustion or gasification of the fuel in the bed and the particulate mater

A method of operating a fluidized bed reactor in which a bed containing solid particulate material is fluidized by introducing air into the bed. A gas column is formed containing a mixture of the air, the gaseous products of combustion or gasification of the fuel in the bed and the particulate material entrained by the air and the gaseous products of combustion. The mixture is discharged from the vessel and the particulate material is separated from the mixture and returned to the bed. The entrainable particulate material is maintained in the bed and in the gas column in quantities sufficient to saturate the gas column. The temperature of the fluidized bed is controlled by varying the amount of air introduced into the bed.

대표청구항 ▼

A method of operating a fluid bed reactor comprising the steps of introducing relative coarse and relatively fine solid fuel particles into a vessel for combustion, introducing air into said vessel and through said particle to fluidize said sulfur absorbent particles and support said combustion, con

A method of operating a fluid bed reactor comprising the steps of introducing relative coarse and relatively fine solid fuel particles into a vessel for combustion, introducing air into said vessel and through said particle to fluidize said sulfur absorbent particles and support said combustion, controlling the velocity of said air so that it is sufficient to entrain the relatively fine particles and insufficient to entrain the relatively coarse particles so that said coarse particles form a discrete fluidized bed in the lower portion of said vessel, said air and entrained fine particles mixing with the gaseous products of combustion and rising towards the upper portion of said vessel, separating said fine particles from said mixture, returning the separated fine particles back to said vessel, discharging the spent particles from said vessel, and controlling the quantity of said fine particles introduced into said vessel and returned to said vessel so that they are in excesss of that sufficient to saturate the gases in said mixture so that a portion of said fine particles accumulates in said discrete bed of coarse particles.