Transformations of inorganic coal constituents in combustion systems

Technical Report · Sun Jan 01 04:00:00 EST 1989

OSTI ID:5992511

Boni, A A; Helble, J J; Srinivasachar, S ^[1]; Huffman, G P ^[2]; Sarofim, A F ^[3]

---

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

The technical objectives of this project are: (a) To: (1) 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 (2) to characterize the resultant spectrum of products in detail; (b) To elucidate and quantify the fundamental processes (involving basic principles of physics, chemistry, thermodynamics) by which transformations of the inorganic constituents occur; and (c) To develop, based on the information required in a. and b. above, 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 eighth quarter of performance on the contract. The authors specifically highlight work accomplished; at PSI Technology Company (PSIT) on (1) transformation of minerals during pure mineral and synthetic char experiments, (2) mineral transformations, size and composition distributions from selected program coals during combustion, and (3) kinetic descriptions of alkali transformations in coal combustion systems; at the Massachusetts Institute of Technology on modeling the distribution of minerals in pulverized coal size fractions; and at the University of Kentucky, on determining the composition of individual ash particles using newly developed software and computer controlled SEM. Individual progress reports have been indexed separately for inclusion on the data base.

• Research Organization: PSI Technology Co., Andover, MA (USA)
• Sponsoring Organization: DOE; USDOE, Washington, DC (USA)
• DOE Contract Number: AC22-86PC90751
• OSTI ID: 5992511
• Report Number(s): DOE/PC/90751-T10; PSI--1024-01/89; TR--903; ON: DE91010548
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600 -- Coal
Lignite
& Peat-- Properties & Composition
014000* -- Coal
Lignite
& Peat-- Combustion
ABSORPTION SPECTROSCOPY
ABSTRACTS
AEROSOLS
ALKALI METALS
ALKALINE EARTH METALS
ALUMINIUM COMPOUNDS
ALUMINIUM SILICATES
ASHES
BITUMINOUS COAL
BLACK COAL
CALCIUM
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHARS
CHEMICAL COMPOSITION
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CLAYS
COAL
COLLOIDS
COMBUSTION
COMBUSTION KINETICS
COMBUSTION PRODUCTS
COMPUTERIZED SIMULATION
DEPOSITION
DISPERSIONS
DISTRIBUTION
DOCUMENT TYPES
ELECTRON MICROSCOPY
ELEMENTS
ENERGY SOURCES
EVAPORATION
FLUIDS
FOSSIL FUELS
FUELS
GASES
GLASS
HEMATITE
ILLITE
IRON
IRON COMPOUNDS
IRON ORES
IRON OXIDES
IRON SULFIDES
KAOLINITE
KINETICS
LEADING ABSTRACT
MAGNETITE
MATERIALS
MATHEMATICAL MODELS
METALS
MICROSCOPY
MINERALS
MOESSBAUER EFFECT
ORES
OXIDATION
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PARTICLE SIZE
PHASE TRANSFORMATIONS
PROGRESS REPORT
PULVERIZED FUELS
PYRITE
PYROLYSIS PRODUCTS
REACTION KINETICS
RESIDUES
SCANNING ELECTRON MICROSCOPY
SILICATE MINERALS
SILICATES
SILICON COMPOUNDS
SIMULATION
SIZE
SODIUM
SOLS
SPECTROSCOPY
SULFIDE MINERALS
SULFIDES
SULFUR COMPOUNDS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
X-RAY SPECTROSCOPY