Sensor Fusion: Comprehensive Real-Time, On-Line Monitoring
for Process Control via Visible, Near-Infrared, and Raman Spectroscopy
Posted on 2020-07-27 - 16:11
On-line
monitoring based on optical spectroscopy provides unprecedented
insight into the chemical composition of process streams or batches.
Amplifying this approach through utilizing multiple forms of optical
spectroscopy in sensor fusion can greatly expand the number and type
of chemical species that can be identified and quantified. This is
demonstrated herein, on the analysis of used nuclear fuel recycling
streams: highly complex processes with multiple target and interfering
analytes. The optical techniques of visible absorbance, near-infrared
absorbance, and Raman spectroscopy were combined to quantify plutonium(III,
IV, VI), uranium(IV, VI), neptunium(IV, V, VI), and nitric acid. Chemometric
modeling was used to quantify analytes in process streams in real
time, and results were successfully used to enable immediate process
control and generation of a product stream at a set composition ratio.
This represents a significant step forward in the ability to monitor
and control complex chemical processes occurring in harsh chemical
environments.
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Lines, Amanda M.; Hall, Gabriel B.; Asmussen, Susan; Allred, Jarrod; Sinkov, Sergey; Heller, Forrest; et al. (2020). Sensor Fusion: Comprehensive Real-Time, On-Line Monitoring
for Process Control via Visible, Near-Infrared, and Raman Spectroscopy. ACS Publications. Collection. https://doi.org/10.1021/acssensors.0c00659
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AUTHORS (9)
AL
Amanda M. Lines
GH
Gabriel B. Hall
SA
Susan Asmussen
JA
Jarrod Allred
SS
Sergey Sinkov
FH
Forrest Heller
NG
Neal Gallagher
GL
Gregg J. Lumetta
SB
Samuel A. Bryan