초록 ▼

An apparatus for removing sulfur values from a hot fuel gas stream in a fluidized bed contactor containing particulate sorbent material by employing a riser tube regeneration arrangement. Sulfur-laden sorbent is continuously removed from the fluidized bed through a stand pipe to the riser tube and i

An apparatus for removing sulfur values from a hot fuel gas stream in a fluidized bed contactor containing particulate sorbent material by employing a riser tube regeneration arrangement. Sulfur-laden sorbent is continuously removed from the fluidized bed through a stand pipe to the riser tube and is rapidly regenerated in the riser tube during transport of the sorbent therethrough by employing an oxygen-containing sorbent regenerating gas stream. The riser tube extends from a location below the fluidized bed to an elevation above the fluidized bed where a gas-solid separating mechanism is utilized to separate the regenerated particulate sorbent from the regeneration gases and reaction gases so that the regenerated sorbent can be returned to the fluidized bed for reuse.

대표청구항 ▼

A system for removing sulfur species from a stream of fuel gas produced by the gasification of sulfur-containing fuel, said system comprising a vertically oriented housing having a grid therein, a bed of particulate sulfur sorbent supported by said grid, means for directing a stream of sulfur-bearin

A system for removing sulfur species from a stream of fuel gas produced by the gasification of sulfur-containing fuel, said system comprising a vertically oriented housing having a grid therein, a bed of particulate sulfur sorbent supported by said grid, means for directing a stream of sulfur-bearing fuel gas upwardly through the bed in the housing such that sulfur species in said fuel gas contacts said sorbent for capture thereby, vertically oriented first conduit means contacting an upper region of said bed at a location underlying the top of said bed for conveying sulfur-bearing sorbent therefrom, second conduit means in communication with the vertically oriented first conduit means at a location underlying said bed for receiving the sulfur-bearing sorbent conveyed therein, means for introducing a steam of oxygen-containing gases into said second conduit means for displacing the sulfur-bearing sorbent upwardly through said second conduit means to a preselected location with the oxygen in said oxygen-containing gases contacting the sulfur-containing sorbent and reacting with the sulfur species therein during the displacement thereof to said preselected location for converting said sulfur species to gaseous sulfur oxides and regenerating said sorbent, separating means coupled to said second conduit means at said preselected location for separating regenerated sorbent from residual oxygen-containing gas supporting said sulfer oxides, and third conduit means in communication with said separating means and a lower region in said bed for conveying the separated regenerated sorbent from said separating means into the lower region of said bed.