Transformations of inorganic coal constituents in combustion systems

Technical Report · Wed Nov 01 00:00:00 EST 1989

OSTI ID:6131907

Boni, A A; Helble, J J; Srinivasachar, S ^[1]; Sarofim, A F; Beer, J M ^[2]; Peterson, T W; Wendt, O L ^[3]; Huffman, G P; Huggins, F E ^[4]

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1. PSI Technology Co., Andover, MA (USA)
2. Massachusetts Inst. of Tech., Cambridge, MA (USA)
3. Arizona Univ., Tucson, AZ (USA)
4. Kentucky Univ., Lexington, KY (USA)

This project consists of an integrated series of experimental and modeling tasks performed by PSIT and five subcontractors to achieve the project objectives. Important elements of this work include coal characterization using advanced analytical techniques, testing in small-scale reactors and combustors, modeling of fundamental processes by which mineral transformations occur, as well as incorporating an improved understanding of these processes into an engineering model to predict particle size and composition distributions. The tasks are: Task 1 - Program Planning, Management, Reporting, and Peer Review; Task 2 - Coal Selection Preparation and Characterization; Task 3 - Advanced Techniques for Coal and Mineral Characterization; Task 4 - Fundamental Studies of Selected Ash Vaporization, Nucleation, Condensation, and Coagulation Phenomena; Task 5 - Fundamental Studies of Mineral Water Vaporization and Residual Ash Formation; Task 6 - Pulverized Coal Combustion Studies of Ash Enrichment by Volatiles and Fragmentation; Task 7 - Idealized Combustion Determination of Ash Particle Formation and Surface Stickiness; and Task 8 - Model Development and Integration. This paper reports on the following subjects: Alkali Transformation in a Self-Sustained Combustor; Mineral Transformations-Residual Ash Formation During the Combustion of a Utility Grind Coal; Alkali Transformations During Pulverized Coal Combustion-Kinetic Modeling and Experimental Measurement; Fundamental Studies on the Residual Ash Formation and Mineral Matter Vaporization During Pulverized Coal Combustion; and Characterization of Combustion Products from Drop-Tube and Pilot Scale Combustion Experiments. These five papers have been processed separately for inclusion on the data base.

• Research Organization: PSI Technology Co., Andover, MA (USA)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (USA)
• DOE Contract Number: AC22-86PC90751
• OSTI ID: 6131907
• Report Number(s): DOE/PC/90751-T8; PSI-1024; TR-979; ON: DE91010378
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COAL
COMBUSTION KINETICS
MINERALS
PHASE TRANSFORMATIONS
ABSORPTION SPECTROSCOPY
AGGLOMERATION
ALKALI METALS
ALKALINE EARTH METALS
ASHES
CHEMICAL COMPOSITION
COMBUSTION
COMBUSTION PRODUCTS
DEPOSITION
DISTRIBUTION
EVAPORATION
FLY ASH
FOULING
FRAGMENTATION
ILLITE
LEADING ABSTRACT
MATHEMATICAL MODELS
MOESSBAUER EFFECT
PARTICLE SIZE
PROGRESS REPORT
PULVERIZED FUELS
PYRITE
QUARTZ
SAMPLE PREPARATION
SCANNING ELECTRON MICROSCOPY
SPECTROSCOPY
VAPOR CONDENSATION
X-RAY DIFFRACTION
X-RAY SPECTROSCOPY
ABSTRACTS
AEROSOL WASTES
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CLAYS
COHERENT SCATTERING
DIFFRACTION
DOCUMENT TYPES
ELECTRON MICROSCOPY
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
IRON COMPOUNDS
IRON SULFIDES
KINETICS
MATERIALS
METALS
MICROSCOPY
OXIDATION
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
REACTION KINETICS
RESIDUES
SCATTERING
SILICON COMPOUNDS
SILICON OXIDES
SIZE
SULFIDE MINERALS
SULFIDES
SULFUR COMPOUNDS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
WASTES
014000* - Coal
Lignite
& Peat- Combustion
010600 - Coal
Lignite
& Peat- Properties & Composition