Analysis of gasifier samples collected with a high-temperature/high-pressure cascade impactor: electron spectroscopy for chemical analysis, energy dispersive x-ray analysis, and scanning electron microscopy

Journal Article · Sat Sep 01 00:00:00 EDT 1984 · Appl. Spectrosc.; (United States)

DOI:https://doi.org/10.1366/0003702844555025· OSTI ID:6289357

Rothenberg, S J; Brundle, C R; Denee, P B; Carpenter, R L; Newton, G J; Henderson, R F

A particulate sample was collected from the process stream of a low Btu gasifier in a cascade impactor operated at 400/sup 0/C and 10-12 atmospheres pressure. Stainless stell shim stock was used as collection substrate. The sample, which weighed less than 1 mg, was successfully mounted and examined by ESCA, EDXA, and SEM. The ESCA spectra of the samples and of blank impactor plates were taken before and after ion etching. The SEM and EDXA data were obtained for samples still on the impactor plate and for a sample transferred from the plate to a carbon, oxygen, and sulphur, but no significant peaks for alkali metals or calcium normally found on the surface of coal combustion fly ash. The EDXA data demonstrated that the core of the particles contained Al, Si, Mg, Ca, and S. Method of sample manipulation are described.

• Research Organization: Inhalation Toxicology Research Institute, Lovelace Biomedical and Environmental Research, Institute, P.O. Box 5890, Albuquerque, New Mexico 87185
• OSTI ID: 6289357
• Journal Information: Appl. Spectrosc.; (United States), Vol. 38:5
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
AEROSOLS
QUANTITATIVE CHEMICAL ANALYSIS
COAL GASIFICATION PLANTS
SAMPLING
HIGH PRESSURE
HIGH TEMPERATURE
PHOTOELECTRON SPECTROSCOPY
RESIDUES
SCANNING ELECTRON MICROSCOPY
VAPOR CONDENSATION
CHEMICAL ANALYSIS
COLLOIDS
DISPERSIONS
ELECTRON MICROSCOPY
ELECTRON SPECTROSCOPY
INDUSTRIAL PLANTS
MICROSCOPY
SOLS
SPECTROSCOPY
010800* - Coal
Lignite
& Peat- Waste Management