Optical instrumentation for on-line analysis of chemical processes

Conference · Sat Jan 01 00:00:00 EST 1983

OSTI ID:6533072

Hartford, A Jr; Cremers, D A; Loree, T R; Quigley, G P

Optical diagnostics provide the capability for nonintrusive, on-line, real time analysis of chemical process streams. Several laser-based methods for monitoring fossil energy processes have been evaluated. Among the instrumentation techniques which appear quite promising are coherent anti-Stokes Raman spectroscopy (CARS), laser-induced breakdown spectroscopy (LIBS), and synchronous detection of laser-induced fluorescence (SDLIF). A CARS diagnostic was implemented on a coal gasifier and was successfully employed to measure species concentrations and temperatures within the process stream. The LIBS approach has been used to identify total trace impurities (e.g., Na, K, and S) within a gasifier. Recently, individual components in mixtures of aromatics hydrocarbons have been resolved via the synchronous detection of laser-induced fluorescence. 9 figures.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 6533072
• Report Number(s): LA-UR-83-409; CONF-830420-2; ON: DE83007557
• Resource Relation: Conference: Society of Photo-Optical Instrumentation Engineers conference, Arlington, VA, USA, 4 Apr 1983; Other Information: Portions are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
01 COAL, LIGNITE, AND PEAT
COAL GASIFICATION PLANTS
FLUORESCENCE SPECTROSCOPY
LASER SPECTROSCOPY
PROCESS SOLUTIONS
RAMAN SPECTROSCOPY
MONITORING
ON-LINE MEASUREMENT SYSTEMS
DIAGNOSTIC TECHNIQUES
DYE LASERS
REAL TIME SYSTEMS
TRACE AMOUNTS
DISPERSIONS
EMISSION SPECTROSCOPY
INDUSTRIAL PLANTS
LASERS
LIQUID LASERS
MIXTURES
ON-LINE SYSTEMS
SOLUTIONS
SPECTROSCOPY
400104* - Spectral Procedures- (-1987)
010404 - Coal
Lignite
& Peat- Gasification