Solvent Hold Tank Sample Results for MCU-16-701-702-703: May 2016 Monthly Sample and MCU-16-710-711-712: May 2016 Superwashed Sample

Fondeur, F. F.¹  Jones, D. H.¹ 

[1] Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL)

关键词: MCU;    ARP;    ISDP NGS;   

DOI  :  10.2172/1323876
RP-ID  :  SRNL-STI--2016-00419
PID  :  OSTI ID: 1323876

学科分类：核能源与工程

美国|英语

来源: SciTech Connect

【 摘 要 】

The Savannah River National Laboratory (SRNL) received one set of Solvent Hold Tank (SHT) samples (MCU-16-701, MCU-16-702 and MCU-16-703), pulled on 05/23/2016 and another set of SHT samples (MCU-16-710, MCU-16-711, and MCU-16-712) were pulled on 05/28/2016 after the solvent was superwashed with 300 mM sodium hydroxide for analysis. Samples MCU-16-701, MCU-16-702, and MCU-16-703 were combined into one sample (MCU-16-701-702-703) and samples MCU-16-710, MCU- 16-711, and MCU-16-712 were combined into one sample (MCU-16-710-711-712). Of the two composite samples MCU-16-710-711-712 represents the current chemical state of the solvent at MCU. All analytical conclusions are based on the chemical analysis of MCU-16-710-711-712. There were no chemical differences between MCU-16-701-702-703 and superwashed MCU-16-710-711-712. Analysis of the composited sample MCU-16-710-712-713 indicated the Isopar???L concentration is above its nominal level (102%). The modifier (CS-7SB) is 16% below its nominal concentration while the TiDG and MaxCalix concentrations are at and above their nominal concentrations respectively. The TiDG level has begun to decrease and it is 7% below its nominal level as of May 28, 2016. Based on this current analysis, the levels of TiDG, Isopar???L, MaxCalix, and modifier are sufficient for continuing operation but are expected to decrease with time. Periodic characterization and trimming additions to the solvent are recommended.