Simultaneous theroanalytical and mass spectrometric investigations of volatile compounds evolved from mineral coal up to a temperature range of 1800 K
There are two categories of interest dealing on the one hand with the application of non computerized TG-DTG-DTA-MS analysis and on the other hand with complete on-line control of the devolatilization process in a high temperature furnace above 1800 K. The first directly offers the possibility to get unreliable data to study thermal decomposition of carbonaceous material with regard to gas composition depending on temperature-time relationships employing different atmospheres and standard pressure. The second object is to quantify these results and data to study the kinetics during thermal degradation up to higher mass ranges and temperatures. Practical application must be a main feature of these investigations. We conclude that additional instrumental modification of the measuring device regarding measurements related to realistic conditions and quantitative results is needed. Mass spectrometric and gas chromatographic identification of the evolved compounds after thermal treatment in the TG-DTA-MS apparatus above 1800 K would be well suited in analysis of devolatilization products.
- Research Organization:
- Applied Chemistry, University GH Paderborn, Paderborn
- OSTI ID:
- 6084911
- Journal Information:
- Prepr. Pap., Am. Chem. Soc., Div. Fuel Chem.; (United States), Vol. 29:2
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CARBONACEOUS MATERIALS
CHEMICAL ANALYSIS
DIFFERENTIAL THERMAL ANALYSIS
PYROLYSIS
THERMAL GRAVIMETRIC ANALYSIS
CHEMICAL REACTION KINETICS
VOLATILE MATTER
GAS CHROMATOGRAPHY
MASS SPECTROSCOPY
CONTROLLED ATMOSPHERES
PYROLYSIS PRODUCTS
TEMPERATURE DEPENDENCE
TIME DEPENDENCE
VERY HIGH TEMPERATURE
ATMOSPHERES
CHEMICAL REACTIONS
CHROMATOGRAPHY
DECOMPOSITION
GRAVIMETRIC ANALYSIS
KINETICS
MATERIALS
MATTER
QUANTITATIVE CHEMICAL ANALYSIS
REACTION KINETICS
SEPARATION PROCESSES
SPECTROSCOPY
THERMAL ANALYSIS
THERMOCHEMICAL PROCESSES
010600* - Coal
Lignite
& Peat- Properties & Composition
010406 - Coal & Coal Products- Pyrolysis & Cracking- (-1987)