Coal gasification reactions with on-line in-situ FT-IR analysis. Eleventh quarterly report, March 3-June 3, 1984

Technical Report · Wed Jan 01 04:00:00 EST 1986

OSTI ID:5314658

Solomon, P R; Serio, M A; Hamblen, D G; Best, P E; Markham, J R

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
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
010406 -- Coal & Coal Products-- Pyrolysis & Cracking-- (-1987)
ACETYLENE
ALKYNES
BITUMINOUS COAL
BLACK COAL
BROWN COAL
CARBONACEOUS MATERIALS
CHARS
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHEMICAL REACTORS
COAL
COAL GASIFICATION
COAL TAR
COMBUSTION PRODUCTS
DATA
DECOMPOSITION
DESIGN
ENERGY SOURCES
ENTRAINMENT
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
GASIFICATION
HEATING RATE
HYDROCARBONS
INFORMATION
INFRARED SPECTRA
KINETICS
LIGNITE
MATERIALS
MODIFICATIONS
MOLECULAR WEIGHT
NUMERICAL DATA
ON-LINE MEASUREMENT SYSTEMS
ON-LINE SYSTEMS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PARTICLE SIZE
PULSES
PYROLYSIS
PYROLYSIS PRODUCTS
REACTION KINETICS
RESEARCH PROGRAMS
SCATTERING
SIZE
SOOT
SPECTRA
TAR
TEMPERATURE MEASUREMENT
THERMOCHEMICAL PROCESSES
TIME DEPENDENCE
YIELDS