Gas distributors for circulating fluidized bed reactors

摘要

A distributor for a circulating dry scrubber reactor includes a venturi section with a venturi section wall extending from a venturi section inlet to a venturi section outlet along a longitudinal axis, with the venturi section inlet connected to an inlet plenum and the venturi section outlet connected to a circulating dry scrubber reactor. A hub is mounted within the venturi section wall with an annular converging-diverging flow path defined between the venturi section wall and the hub for distribution of gas flow from the venturi section outlet into a circulating dry scrubber reactor space and for maintaining stable bed fluidization in a CDS system at a comparatively low system pressure loss.

主权项

1. A distributor for a circulating dry scrubber reactor comprising:
a venturi section including a venturi section wall extending from a venturi section inlet to a venturi section outlet along a longitudinal axis, wherein the venturi section inlet is configured and adapted to be connected to an inlet plenum and the venturi section outlet is configured and adapted to be connected to a circulating dry scrubber reactor; and a hub mounted within the venturi section wall with an annular converging-diverging flow path defined between the venturi section wall and the hub for distribution of gas flow from the venturi section outlet into a circulating dry scrubber reactor space and for maintaining stable bed fluidization, wherein the hub includes an outlet section that defines a diverging portion of the flow path in the direction from the venturi section inlet to the venturi section outlet, wherein at least a portion of the outlet section of the hub is below the venturi section outlet of the venturi section wall relative to the longitudinal axis.