Transformations of inorganic coal constituents in combustion systems

Technical Report · Fri Mar 01 04:00:00 EST 1991

OSTI ID:5746905

Boni, A A; Helble, J J; Srinivasachar, S; Wilemski, G ^[1]; Graham, K A; Sarofim, A F; Beer, J M ^[2]

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1. PSI Technology Co., Andover, MA (USA)
2. 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) 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. (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 nature and distribution of products. This report summarizes work accomplished during the seventeenth quarter of this project. The work discussed herein highlights: the recent completion of vaporization modeling at the Massachusetts Institute of Technology (M.I.T.), and the summarization of ash vaporization results from coals and synthetic chars; at PSI Technology Company (PSIT), in examining the stickiness of pure montmorillonite as a model clay compound; and also at PSIT, in applying the Engineering Model for ash particle size and composition to Kentucky No. 11 combustion results. 21 refs., 26 figs., 3 tabs.

• Research Organization: PSI Technology Co., Andover, MA (USA)
• Sponsoring Organization: DOE; USDOE, Washington, DC (USA)
• DOE Contract Number: AC22-86PC90751
• OSTI ID: 5746905
• Report Number(s): DOE/PC/90751-T11; PSI--1024/TR-1107; ON: DE91011311
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
014000* -- Coal
Lignite
& Peat-- Combustion
ADHESION
AEROSOLS
ALKALINE EARTH METAL COMPOUNDS
ALKALINE EARTH METALS
ASHES
BROWN COAL
CALCIUM
CALCIUM COMPOUNDS
CALCIUM OXIDES
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHARS
CHEMICAL COMPOSITION
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CLAYS
COAL
COLLOIDS
COMBUSTION KINETICS
DISPERSIONS
DISTRIBUTION
DOCUMENT TYPES
ELEMENTS
ENERGY SOURCES
EVAPORATION
FLUE GAS
FOSSIL FUELS
FUELS
GASEOUS WASTES
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
IRON
IRON COMPOUNDS
IRON OXIDES
IRON SULFIDES
KINETICS
LIGNITE
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
MASS TRANSFER
MATERIALS
MATHEMATICAL MODELS
METALS
MINERALS
MONTMORILLONITE
OXIDES
OXYGEN COMPOUNDS
PARTICLE SIZE
PHASE TRANSFORMATIONS
PROGRESS REPORT
PULVERIZED FUELS
PYRITE
PYROLYSIS PRODUCTS
REACTION KINETICS
RESIDUES
SEMIMETALS
SILICON
SIZE
SOLS
SULFIDE MINERALS
SULFIDES
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
VISCOSITY
WASTES