Transformations of inorganic coal constituents in combustion systems: Quarterly report No. 6 for the period January-March 1988

Technical Report · Fri Apr 01 04:00:00 EST 1988

OSTI ID:5253997

Objectives of this project are: (1) to define the partitioning of inorganic constituents associated with raw coal particles among products (including vapors, aerosols, and residual char/ash particles) formed under conditions representative of pulverized coal flames as a function of the specific (intrinsic and extrinsic) characteristics of the raw coal and the environment in which the transformations occur and characterize the resultant spectrum of products in detail. (2) To elucidate and quantify the fundamental process by which transformations of the inorganic constituents occur. (3) To develop, a tractable ''process'' model capable of predicting the significant features of the transformation process, most importantly, the distribution and nature of products. This report represents work accomplished in the 6th quarter. We specifically highlight work accomplished: on characterization of minerals using Computer Controlled Scanning Electron Microscopy (CCSEM) and Mossbauer Spectroscopy; on calcium vaporization and aerosol dynamics; on time-resolved evolution of fly ash during coal combustion; and on the transformation and adhesion of minerals during combustion, and on pyrite transformations. 26 refs., 33 figs., 4 tabs.

• Research Organization: PSI Technology Co., Andover, MA (USA)
• DOE Contract Number: AC22-86PC90751
• OSTI ID: 5253997
• Report Number(s): PSI-1024/TR-787; ON: DE88009012
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010300* -- Coal
Lignite
& Peat-- Preparation-- (1987-)
010402 -- Coal
Lignite
& Peat-- Purification & Upgrading
014000 -- Coal
Lignite
& Peat-- Combustion
ADHESION
AEROSOL WASTES
AEROSOLS
AGGLOMERATION
ASHES
BROWN COAL
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHARS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
COAL
COLLOIDS
COMBUSTION
COMPUTERIZED SIMULATION
DEPOSITION
DISPERSIONS
DOCUMENT TYPES
ELECTRON MICROSCOPY
ENERGY SOURCES
EVAPORATION
FLY ASH
FOSSIL FUELS
FUELS
IRON COMPOUNDS
IRON SULFIDES
KINETICS
LIGNITE
MATERIALS
MICROSCOPY
MINERALS
OXIDATION
PHASE TRANSFORMATIONS
POROSITY
PROGRESS REPORT
PYRITE
PYROLYSIS PRODUCTS
RESIDUES
SCANNING ELECTRON MICROSCOPY
SIMULATION
SOLS
SULFIDE MINERALS
SULFIDES
SULFUR COMPOUNDS
TEMPERATURE EFFECTS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
VAPOR CONDENSATION
VISCOSITY
WASTES