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Title: Bed material agglomeration during fluidized bed combustion

The purpose of this project is to determine the physical and chemical reactions which led to the undesired agglomeration of bed material during fluidized bed combustion and to relate these reactions to specific causes. Survey of industrial-scale fluidized bed combustors is being conducted to determine the occurrence of bed agglomeration and the circumstances under which agglomeration took place. This task should be finished by the end of February. Samples of bed material, agglomerate material, and boiler deposits are being requested from boiler operators as part of the survey. Once received, these sample will be analyzed to determine chemical and mineralogic composition. The bulk chemical determination will be performed using x-ray fluorescence and inductively coupled plasma-optical emission (ICP). Mineralogy will be detected by x-ray diffraction (XRD). Chemical and mineral reactions will be determined by scanning electron microscopy, optical microscopy, and electron microprobe.
Authors:
; ;
Publication Date:
OSTI Identifier:
6869469
Report Number(s):
DOE/PC/92530-T2
ON: DE93012566
DOE Contract Number:
FG22-92PC92530
Resource Type:
Technical Report
Research Org:
Iowa State Univ. of Science and Technology, Ames, IA (United States)
Sponsoring Org:
DOE; USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; COAL; FLUIDIZED-BED COMBUSTION; AGGLOMERATION; EMISSION SPECTROSCOPY; PROGRESS REPORT; X-RAY FLUORESCENCE ANALYSIS; CARBONACEOUS MATERIALS; CHEMICAL ANALYSIS; CHEMICAL REACTIONS; COMBUSTION; DOCUMENT TYPES; ENERGY SOURCES; FOSSIL FUELS; FUELS; MATERIALS; NONDESTRUCTIVE ANALYSIS; OXIDATION; SPECTROSCOPY; THERMOCHEMICAL PROCESSES; X-RAY EMISSION ANALYSIS 014000* -- Coal, Lignite, & Peat-- Combustion