Method and apparatus for hot-gas desulfurization of fuel gases
The present invention is directed to a method and 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. 3 figs., 1 tab.
- Research Organization:
- USDOE Morgantown Energy Technology Center, WV (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- Assignee:
- Dept. of Energy
- Patent Number(s):
- PATENTS-US-A7560666
- Application Number:
- ON: DE92003827; PAN: 7-560,666; NC: NONE
- OSTI ID:
- 10104653
- Resource Relation:
- Other Information: PBD: 1990
- Country of Publication:
- United States
- Language:
- English
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