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Title: Analysis of Venting of a Resin Slurry

Abstract

A resin slurry venting analysis was conducted to address safety issues associated with over-pressurization of ion exchange columns used in the plutonium uranium redox extraction (PUREX) process at the U. S. Department of Energy’s (DOE’s) Savannah River Site (SRS). If flow to these columns were inadvertently interrupted, an exothermic runaway reaction could occur between the ion exchange resin and the nitric acid used in the feed stream. The nitric acid-resin reaction generates significant quantities of noncondensable gases, which would pressurize the column. To prevent the column from rupturing during such events, rupture disks are installed on the column vent lines. The venting analysis models accelerating rate calorimeter (ARC) tests and data from tests that were performed in a vented test vessel with a rupture disk. The tests showed that the pressure inside the test vessel continued to increase after the rupture disk opened, though at a slower rate than prior to the rupture. The increase in the vessel pressure is modeled as a transient phenomenon associated with expansion of the resin slurry/gas mixture upon rupture of the disk. It is postulated that the maximum pressure at the end of this expansion is limited by energy minimization to approximately 1.5 timesmore » the rupture disk burst pressure. The magnitude of this pressure increase is consistent with the measured pressure transients. The results of this analysis demonstrate the need to allow for a margin between the design pressure and the rupture disk burst pressure in similar applications.« less

Authors:
 [1];  [2]
  1. Savannah River Site (SRS), Aiken, SC (United States)
  2. Savannah River Nuclear Solutions LLC, Aiken, SC (United States)
Publication Date:
Research Org.:
Savannah River Site (SRS), Aiken, SC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1487369
Report Number(s):
SRNL-STI-2018-00014
Journal ID: ISSN 0094-9930
Grant/Contract Number:  
AC09-08SR22470
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Pressure Vessel Technology
Additional Journal Information:
Journal Volume: 140; Journal Issue: 6; Journal ID: ISSN 0094-9930
Publisher:
ASME
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Laurinat, James E., and Hensel, Steve J. Analysis of Venting of a Resin Slurry. United States: N. p., 2018. Web. doi:10.1115/1.4041688.
Laurinat, James E., & Hensel, Steve J. Analysis of Venting of a Resin Slurry. United States. doi:10.1115/1.4041688.
Laurinat, James E., and Hensel, Steve J. Mon . "Analysis of Venting of a Resin Slurry". United States. doi:10.1115/1.4041688.
@article{osti_1487369,
title = {Analysis of Venting of a Resin Slurry},
author = {Laurinat, James E. and Hensel, Steve J.},
abstractNote = {A resin slurry venting analysis was conducted to address safety issues associated with over-pressurization of ion exchange columns used in the plutonium uranium redox extraction (PUREX) process at the U. S. Department of Energy’s (DOE’s) Savannah River Site (SRS). If flow to these columns were inadvertently interrupted, an exothermic runaway reaction could occur between the ion exchange resin and the nitric acid used in the feed stream. The nitric acid-resin reaction generates significant quantities of noncondensable gases, which would pressurize the column. To prevent the column from rupturing during such events, rupture disks are installed on the column vent lines. The venting analysis models accelerating rate calorimeter (ARC) tests and data from tests that were performed in a vented test vessel with a rupture disk. The tests showed that the pressure inside the test vessel continued to increase after the rupture disk opened, though at a slower rate than prior to the rupture. The increase in the vessel pressure is modeled as a transient phenomenon associated with expansion of the resin slurry/gas mixture upon rupture of the disk. It is postulated that the maximum pressure at the end of this expansion is limited by energy minimization to approximately 1.5 times the rupture disk burst pressure. The magnitude of this pressure increase is consistent with the measured pressure transients. The results of this analysis demonstrate the need to allow for a margin between the design pressure and the rupture disk burst pressure in similar applications.},
doi = {10.1115/1.4041688},
journal = {Journal of Pressure Vessel Technology},
issn = {0094-9930},
number = 6,
volume = 140,
place = {United States},
year = {2018},
month = {11}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on November 12, 2019
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