Durable zinc oxide-containing sorbents for coal gas desulfurization

Patent · Mon Jan 01 00:00:00 EST 1996

OSTI ID:870318

Siriwardane, Ranjani V ^[1]

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1. Morgantown, WV

Durable zinc-oxide containing sorbent pellets for removing hydrogen sulfide from a gas stream at an elevated temperature are made up to contain titania as a diluent, high-surface-area silica gel, and a binder. These materials are mixed, moistened, and formed into pellets, which are then dried and calcined. The resulting pellets undergo repeated cycles of sulfidation and regeneration without loss of reactivity and without mechanical degradation. Regeneration of the pellets is carried out by contacting the bed with an oxidizing gas mixture.

• Research Organization: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5494880
• OSTI ID: 870318
• Country of Publication: United States
• Language: English

Related Subjects

durable
zinc
oxide-containing
sorbents
coal
gas
desulfurization
zinc-oxide
containing
sorbent
pellets
removing
hydrogen
sulfide
stream
elevated
temperature
contain
titania
diluent
high-surface-area
silica
binder
materials
mixed
moistened
formed
dried
calcined
resulting
undergo
repeated
cycles
sulfidation
regeneration
loss
reactivity
mechanical
degradation
carried
contacting
bed
oxidizing
mixture
repeated cycles
oxide containing
sorbent pellets
gas desulfurization
oxidizing gas
zinc oxide
gas stream
elevated temperature
hydrogen sulfide
gas mixture
removing hydrogen
coal gas
durable zinc
containing sorbent
/502/