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Title: New Waste Calciner High Temperature Operation

Abstract

A new Calciner flowsheet has been developed to process the sodium-bearing waste (SBW) in the INTEC Tank Farm. The new flowsheet increases the normal Calciner operating temperature from 500 C to 600 C. At the elevated temperature, sodium in the waste forms stable aluminates, instead of nitrates that melt at calcining temperatures. From March through May 2000, the new high-temperature flowsheet was tested in the New Waste Calcining Facility (NWCF) Calciner. Specific test criteria for various Calciner systems (feed, fuel, quench, off-gas, etc.) were established to evaluate the long-term operability of the high-temperature flowsheet. This report compares in detail the Calciner process data with the test criteria. The Calciner systems met or exceeded all test criteria. The new flowsheet is a visible, long-term method of calcining SBW. Implementation of the flowsheet will significantly increase the calcining rate of SBW and reduce the amount of calcine produced by reducing the amount of chemical additives to the Calciner. This will help meet the future waste processing milestones and regulatory needs such as emptying the Tank Farm.

Authors:
Publication Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE Office of Environmental Management (EM) (US)
OSTI Identifier:
801433
Report Number(s):
INEEL/EXT-2000-01004
TRN: US0205333
DOE Contract Number:  
AC07-99ID13727
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 1 Sep 2000
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; ADDITIVES; ALUMINATES; FLOWSHEETS; IMPLEMENTATION; NITRATES; SODIUM; STORAGE FACILITIES; WASTE FORMS; WASTE PROCESSING; WASTES; FLOWSHEET; HIGH TEMPERATURE; WASTE; MELT; CALCINE; CHEMICAL ADDITIVES

Citation Formats

Swenson, M C. New Waste Calciner High Temperature Operation. United States: N. p., 2000. Web. doi:10.2172/801433.
Swenson, M C. New Waste Calciner High Temperature Operation. United States. https://doi.org/10.2172/801433
Swenson, M C. Fri . "New Waste Calciner High Temperature Operation". United States. https://doi.org/10.2172/801433. https://www.osti.gov/servlets/purl/801433.
@article{osti_801433,
title = {New Waste Calciner High Temperature Operation},
author = {Swenson, M C},
abstractNote = {A new Calciner flowsheet has been developed to process the sodium-bearing waste (SBW) in the INTEC Tank Farm. The new flowsheet increases the normal Calciner operating temperature from 500 C to 600 C. At the elevated temperature, sodium in the waste forms stable aluminates, instead of nitrates that melt at calcining temperatures. From March through May 2000, the new high-temperature flowsheet was tested in the New Waste Calcining Facility (NWCF) Calciner. Specific test criteria for various Calciner systems (feed, fuel, quench, off-gas, etc.) were established to evaluate the long-term operability of the high-temperature flowsheet. This report compares in detail the Calciner process data with the test criteria. The Calciner systems met or exceeded all test criteria. The new flowsheet is a visible, long-term method of calcining SBW. Implementation of the flowsheet will significantly increase the calcining rate of SBW and reduce the amount of calcine produced by reducing the amount of chemical additives to the Calciner. This will help meet the future waste processing milestones and regulatory needs such as emptying the Tank Farm.},
doi = {10.2172/801433},
url = {https://www.osti.gov/biblio/801433}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {9}
}