Porous desulfurization sorbent pellets containing a reactive metal oxide and an inert zirconium compound
Sorbent pellets for removing hydrogen sulfide from coal gas are prepared by combining a reactive oxide, in particular zinc oxide, with a zirconium compound such as an oxide, silicate, or aluminate of zirconium, and an inorganic binder and pelletizing and calcining the mixture. Alternately, the zinc oxide may be replaced by copper oxide or a combination of copper, molybdenum, and manganese oxides. The pellet components may be mixed in dry form, moistened to produce a paste, and converted to pellets by forming an aqueous slurry of the components and spray drying the slurry, or the reactive oxide may be formed on existing zirconium-containing catalyst-carrier pellets by infusing a solution of a salt of the active metal onto the existing pellets and firing at a high temperature to produce the oxide. Pellets made according to this invention show a high reactivity with hydrogen sulfide and durability such as to be useful over repeated cycles of sorption and regeneration.
- Research Organization:
- Federal Energy Technology Center-Morgantown, Morgantown, WV (US)
- Sponsoring Organization:
- US Department of Energy (US)
- Assignee:
- DOEGC; EDB-00:057976
- Patent Number(s):
- PATENTS-US-A8755685
- Application Number:
- 8-775,685; TRN: AH200022%%67
- OSTI ID:
- 757042
- Resource Relation:
- Patent File Date: 1996 Dec 31; Other Information: PBD: 1 Dec 1996
- Country of Publication:
- United States
- Language:
- English
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