HRT MOCKUP IODINE REMOVAL AND RECOMBINER TESTS

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Tests have been run in the HRT core system mockup which demonstrate that iodine can be successfully removed from dry steam by a silver bed. Such a bed is recommended to prevent iodine poisoning of the HRT recombiner catalyst. An added advantage will be removal of I/sup 135/ from circulation, whereby reducing neutron losses a Xe/sup 135/, a daughter. Four experiments were made with the silvered Alundum pellets during which experimental mass transfer coefficients were determined. At 110 deg C the experimental kg was 25% of the theoretical value, and at 150 deg C the kg was 52% of the ... continued below

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Pages: 12

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Harley, P.H. January 13, 1958.

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Description

Tests have been run in the HRT core system mockup which demonstrate that iodine can be successfully removed from dry steam by a silver bed. Such a bed is recommended to prevent iodine poisoning of the HRT recombiner catalyst. An added advantage will be removal of I/sup 135/ from circulation, whereby reducing neutron losses a Xe/sup 135/, a daughter. Four experiments were made with the silvered Alundum pellets during which experimental mass transfer coefficients were determined. At 110 deg C the experimental kg was 25% of the theoretical value, and at 150 deg C the kg was 52% of the theoretical. The experimental efficiencies were 68% and 97.8% of the theoretical efficiencies at the above temperatures. Increasing the gas temperature greatly improved the correlation of the theoretical and experimental data. Two iodine removal tests were made using silver-plated stainless steel wire mesh. These two tests gave higher removal efficiencies than the corresponding tests with the silvered Alundum rings. The metal support is preferred also because of its greater mechandical andd chemical stability. In particular, leaching of Ns/sub 2/O from Alundum rings was noted in the HRT. In a test of the stability of the silver-plated wire mesh, only 0.0025% of the silver was lost in a 650 hour run. During mockup tests without a silver bed, iodine poisoning lowered the recombiner efficiency from 99.97% to combiner temperature to 650 deg C was found to be effective in removing iodine poison from the platinum catalyst. (auth)

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Pages: 12

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  • Other Information: Orig. Receipt Date: 31-DEC-59

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  • Report No.: CF-58-1-138
  • Grant Number: W-7405-ENG-26
  • DOI: 10.2172/4236680 | External Link
  • Office of Scientific & Technical Information Report Number: 4236680
  • Archival Resource Key: ark:/67531/metadc1019696

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • January 13, 1958

Added to The UNT Digital Library

  • Oct. 15, 2017, 10:09 p.m.

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  • Oct. 23, 2017, 6:05 p.m.

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Harley, P.H. HRT MOCKUP IODINE REMOVAL AND RECOMBINER TESTS, report, January 13, 1958; Oak Ridge, Tennessee. (digital.library.unt.edu/ark:/67531/metadc1019696/: accessed December 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.