Document Details

Design of a Unit for the Removal of Iodine From the Dissolver Off-Gas Stream in the Idaho Chemical Processing Plant
Carter, W L [Carbon and Carbide Chemicals Company]
Subject Terms:
Iodine Removal; Off-Gas; Silver Nitrate; Silver Reactor
Culler, F.L.
Document Location:
DOE INFORMATION CENTER 1 Way, Oak Ridge, TN 37831; Eva Butler; Phone: 865-241-4780; Toll-Free: 800-382-6938, Option 6; FAX: 865-574-3521; Email:
Document Categories:
Isotope Separation\Other Isotope Separation Information
Document Type:
Publication Date:
1952 Nov 05
Declassification Date:
1975 Apr 03
Declassification Status:
Document Pages:
Accession Number:
Document Number(s):
Originating Research Org.:
Oak Ridge National Laboratory
OpenNet Entry Date:
1995 Mar 10
Report describes processing off-gas from MTR Fuel Element Dissolvings. For satisfactory operation of the system in the Idaho Chemical Processing Plant, fission product Iodine and Bromine are removed in the first stages of the system. If they are allowed to remain in the process gas, catalyst and adsorption beds in the latter stages of the system are susceptable to their poisoning effect with a resulting decrease in efficiency. In addition, Gamma radiation of I(131) would present a radiation hazard throughout the system which would make operation and maintenance more difficult. The method of Iodine removal for this plant is based on the experimental work of the Air Reduction Sales Company of Murray Hill, New Jersey, and on the subsequent plant scale operations at Hanford Works. A preliminary design survey for adapting this process for use in the Idaho Chemical Processing Plant has been reported by the Process Design Section in ORNL CF-51-3-27. The process consists of passsing the gas stream at an elevated temperature thorugh a bed of ceramic porcelainized Berl saddles whose surface has been coated with silver nitrate. At this elevated temperature (375 degrees F) silver nitrate reacts with Iodine, removing it from the gas stream. Any Bromine present will be removed in the same manner.

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