Coal gasification reactions with on-line in-situ FT-IR analysis. Eleventh quarterly report, March 3-June 3, 1984
During the eleventh quarter, work continued on the measurement of coal particle temperatures during pyrolysis using FT-IR transmission and emission spectroscopy. The main thrust was assessing the nature and magnitude of the scattering contribution to the spectra by a series of experiments and by development of a quantitative model. In the case of the tube reactor experiment, Inconel tubes were substituted for the stainless tubes used previously in order to extend the upper temperature limit. These were tested at temperatures up to 1100/sup 0/C and worked satisfactorily. In addition, a scheme was developed to measure the mean residence time and residence time distribution for pulses of coal. Additional data were obtained on the effect of heating rate on the molecular weight distribution for a lignite and an Illinois No. 6 bituminous coal. This data, obtained at 600/sup 0/C/s, was consistent with earlier results at 3 and 20,000/sup 0/C/s which showed a strong effect for the lignite change for the bituminous coal. It was also found that the most rapidly heated lignite was quite fluid and showed bubble formation. This observation is consistent with the concept that the cross-linking, which inhibits both tar formation and fluidity in lignites, can itself be inhibited by high heating rates. The designs of the refractory internals and the supporting framework for the high pressure reactor (HPR) were finalized and the parts were ordered. The temperature, pressure, and flow control schemes for the HPR system were also finalized and the appropriate indicators, gauges, regulators, and controllers were ordered. The shell for the high pressure reactor arrived on May 31, and was installed on the supporting framework. 4 refs., 15 figs.
- Research Organization:
- Advanced Fuel Research, Inc., East Hartford, CT (USA)
- DOE Contract Number:
- AC21-81FE05122
- OSTI ID:
- 5314658
- Report Number(s):
- DOE/FE/05122-2115; ON: DE86014842
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BITUMINOUS COAL
PYROLYSIS
CHARS
CHEMICAL REACTION YIELD
CHEMICAL REACTORS
DESIGN
MODIFICATIONS
COAL GASIFICATION
CHEMICAL REACTION KINETICS
ON-LINE MEASUREMENT SYSTEMS
COAL TAR
MOLECULAR WEIGHT
LIGNITE
PARTICLE SIZE
SOOT
COMBUSTION PRODUCTS
ACETYLENE
ENTRAINMENT
EXPERIMENTAL DATA
HEATING RATE
INFRARED SPECTRA
PULSES
RESEARCH PROGRAMS
SCATTERING
TEMPERATURE MEASUREMENT
TIME DEPENDENCE
ALKYNES
BLACK COAL
BROWN COAL
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
DATA
DECOMPOSITION
ENERGY SOURCES
FOSSIL FUELS
FUELS
GASIFICATION
HYDROCARBONS
INFORMATION
KINETICS
MATERIALS
NUMERICAL DATA
ON-LINE SYSTEMS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PYROLYSIS PRODUCTS
REACTION KINETICS
SIZE
SPECTRA
TAR
THERMOCHEMICAL PROCESSES
YIELDS
010404* - Coal
Lignite
& Peat- Gasification
010406 - Coal & Coal Products- Pyrolysis & Cracking- (-1987)