“…CWAO was investigated further in Phase I of the hydrogen generation study, Koopman (2005a). There it was found that eliminating oxygen, the other reactant in CWAO, did in fact lead to lower CO 2 concentrations during reflux.…”
Section: High Oxalate Hydrogen Resultsmentioning
confidence: 99%
“…In addition, Phase I of the hydrogen generation study consisted of six tests using SB3 simulant from CETL similar to that used in the last four studies above, Koopman (2005a). This work followed the redox and heel study.…”
Section: Overview Of Tests During 2002-2005mentioning
confidence: 99%
“…The differences may have been partly due to changing conditions within the lab hoods that impacted internal refluxing in the SRAT. Internal refluxing was linked to acid consumption during the Phase I hydrogen generation program testing, Koopman (2005a), so it can be inferred with confidence that the extent of internal refluxing was altering the excess acid present for hydrogen generation. This led to uncertainty in the column of minimum acid requirements for taking nitrite to <1000 mg/kg as well.…”
Section: Statistical Analysis Of Sludge Batch 3 Hydrogen Datamentioning
confidence: 99%
“…The "SB3" values are from the final flowsheet simulations (SB3A-19 and SB3A-20), Herman (2003e). The set of four SB4 runs was another test of the mercury-noble metal interaction effect studied in Phase I of the hydrogen generation program, Koopman (2005a) with SB3 simulant. This was also a test of the impact of acid on hydrogen generation, since there were two different stoichiometries.…”
“…CWAO was investigated further in Phase I of the hydrogen generation study, Koopman (2005a). There it was found that eliminating oxygen, the other reactant in CWAO, did in fact lead to lower CO 2 concentrations during reflux.…”
Section: High Oxalate Hydrogen Resultsmentioning
confidence: 99%
“…In addition, Phase I of the hydrogen generation study consisted of six tests using SB3 simulant from CETL similar to that used in the last four studies above, Koopman (2005a). This work followed the redox and heel study.…”
Section: Overview Of Tests During 2002-2005mentioning
confidence: 99%
“…The differences may have been partly due to changing conditions within the lab hoods that impacted internal refluxing in the SRAT. Internal refluxing was linked to acid consumption during the Phase I hydrogen generation program testing, Koopman (2005a), so it can be inferred with confidence that the extent of internal refluxing was altering the excess acid present for hydrogen generation. This led to uncertainty in the column of minimum acid requirements for taking nitrite to <1000 mg/kg as well.…”
Section: Statistical Analysis Of Sludge Batch 3 Hydrogen Datamentioning
confidence: 99%
“…The "SB3" values are from the final flowsheet simulations (SB3A-19 and SB3A-20), Herman (2003e). The set of four SB4 runs was another test of the mercury-noble metal interaction effect studied in Phase I of the hydrogen generation program, Koopman (2005a) with SB3 simulant. This was also a test of the impact of acid on hydrogen generation, since there were two different stoichiometries.…”
“…The impact of mercury studies on hydrogen generation in the Sludge Batch 3 (SB3) system indicated a need for follow-up work. 5 The form of noble metal testing showed a correlation between soluble Rh and Ru with hydrogen generation that helped to define a feasible scope for this program. 6,7 These results, along with additional data obtained during SB4 testing, indicated the need for a statistical evaluation of the significance of main factor and two-way interaction effects due to Rh, Ru, and Hg on hydrogen generation.…”
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