Experimental and theoretical investigation of the formation and growth of ash agglomerates

Technical Report · Fri Sep 01 04:00:00 EDT 1989

DOI:https://doi.org/10.2172/7183884· OSTI ID:7183884

Carty, R H; Mason, D M; Kline, S; Babu, S; Arastoopour, H; Hariri, H

This research program on the experimental and theoretical investigation of the formation and growth of ash agglomerates consists of 3 tasks: (1) facility preparation, (2) test program, and (3) test data analysis and interpretation. The result is a description of ash agglomeration as a function of temperature, velocities, particle size, and viscosity of the molten agglomerates. Major objectives include: investigation of the effects on ash behavior of the addition of limestone as an in-bed sulfur-capture agent and of the recycling of the effluent stream containing SO{sub 2} from the regeneration of a hot-gas cleanup system to a fluidized-bed gasifier; determination of the maximum viscosity of molten ash that allows ash agglomerate growth and experimental measurement of agglomerate growth as a function of temperature, viscosity, and chemical composition; exploration of the development of an optimum design basis and operating procedure for fluidized-bed coal gasification processes based on the analysis of bench-scale experimental data; and development of mathematical relationships based on fundamentals of fluid mechanics, heat transfer, and the previously developed Institute of Gas Technology (IGT) description of the agglomeration phenomenon in a fluidized-bed coal gasification system. 18 refs., 60 figs., 48 tabs.

• Research Organization: Institute of Gas Technology, Chicago, IL (USA)
• Sponsoring Organization: DOE/FE
• DOE Contract Number: AC21-87MC23283
• OSTI ID: 7183884
• Report Number(s): DOE/MC/23283-2802; ON: DE90000455
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
AGGLOMERATION
ALKALINE EARTH METAL COMPOUNDS
ASHES
BENCH-SCALE EXPERIMENTS
CALCIUM CARBONATES
CALCIUM COMPOUNDS
CARBON COMPOUNDS
CARBONATE MINERALS
CARBONATE ROCKS
CARBONATES
COAL GASIFICATION
DOCUMENT TYPES
DOLOMITE
ELEMENTS
ENERGY TRANSFER
FLUIDIZED BEDS
GASIFICATION
HEAT TRANSFER
LIMESTONE
MAGNESIUM CARBONATES
MAGNESIUM COMPOUNDS
MATHEMATICAL MODELS
MINERALS
NONMETALS
OXYGEN COMPOUNDS
PARTICLE SIZE
PROGRESS REPORT
RESIDUES
ROCKS
SEDIMENTARY ROCKS
SIZE
SLAGS
SORPTION
SULFUR
THERMOCHEMICAL PROCESSES
VELOCITY
VISCOSITY