High-temperature sorbent method for removal of sulfur containing gases from gaseous mixtures

Patent · Sun Jan 01 04:00:00 EST 1984

OSTI ID:865060

Young, John E ^[1]; Jalan, Vinod M ^[2]

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1. Woodridge, IL
2. Concord, MA

A copper oxide-zinc oxide mixture is used as a sorbent for removing hydrogen sulfide and other sulfur containing gases at high temperatures from a gaseous fuel mixture. This high-temperature sorbent is especially useful for preparing fuel gases for high temperature fuel cells. The copper oxide is initially reduced in a preconditioning step to elemental copper and is present in a highly dispersed state throughout the zinc oxide which serves as a support as well as adding to the sulfur sorption capacity. The spent sorbent is regenerated by high-temperature treatment with an air fuel, air steam mixture followed by hydrogen reduction to remove and recover the sulfur.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• DOE Contract Number: W-31109-ENG-38
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4455286
• OSTI ID: 865060
• Country of Publication: United States
• Language: English

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/423/95/252/
adding
air
air fuel
capacity
cells
containing
containing gas
containing gases
copper
copper oxide
dispersed
elemental
especially
especially useful
followed
fuel
fuel cell
fuel cells
fuel gas
fuel gases
fuel mixture
gaseous
gaseous fuel
gaseous mixture
gaseous mixtures
gases
high-temperature
highly
highly dispersed
hydrogen
hydrogen reduction
hydrogen sulfide
initially
method
mixture
mixtures
oxide
oxide mixture
oxide-zinc
preconditioning
preparing
recover
reduced
reduction
regenerated
removal
remove
removing
removing hydrogen
serves
sorbent
sorption
sorption capacity
spent
steam
step
sulfide
sulfur
sulfur containing
support
temperature
temperature fuel
temperature treatment
temperatures
throughout
treatment
useful
zinc
zinc oxide