Dry method for recycling iodine-loaded silver zeolite

Patent · Tue May 09 00:00:00 EDT 1978

OSTI ID:863080

Thomas, Thomas R ^[1]; Staples, Bruce A ^[1]; Murphy, Llewellyn P ^[1]

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1. Idaho Falls, ID

Fission product iodine is removed from a waste gas stream and stored by passing the gas stream through a bed of silver-exchanged zeolite until the zeolite is loaded with iodine, passing dry hydrogen gas through the bed to remove the iodine and regenerate the bed, and passing the hydrogen stream containing the hydrogen iodide thus formed through a lead-exchanged zeolite which adsorbs the radioactive iodine from the gas stream and permanently storing the lead-exchanged zeolite loaded with radioactive iodine.

• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4088737
• Application Number: 05/737,650
• OSTI ID: 863080
• Country of Publication: United States
• Language: English

Related Subjects

dry
method
recycling
iodine-loaded
silver
zeolite
fission
product
iodine
removed
waste
gas
stream
stored
passing
bed
silver-exchanged
loaded
hydrogen
remove
regenerate
containing
iodide
formed
lead-exchanged
adsorbs
radioactive
permanently
storing
radioactive iodine
waste gas
fission product
hydrogen gas
gas stream
stream containing
hydrogen iodide
hydrogen stream
silver zeolite
exchanged zeolite
dry method
dry hydrogen
/588/95/376/423/976/