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A 32-month gasifier mechanistic study and downstream unit process development program for the pressurized ash-agglomerating fluidized bed gasification system: Quarterly report, July 1-September 30, 1985

Technical Report ·
OSTI ID:5090184
; ; ; ; ; ;
KRW Energy Systems Inc. completed installations of its external hot-gas-cleanup (HGCU) system at the Process Development Unit at Waltz Mill, PA. Two external-bed desulfurization tests were conducted on this system. An evaluation of filter performance during in-bed and external-bed desulfurization testing was completed, and filter modifications were identified as follows: increase blowback pulse flow to enable continuation of TP-037-2 and redesign the filter internals to incorporate eight additional filter elements for future testing. In-bed desulfurization test TP-036-5 demonstrated that limestone is equal to dolomite as a desulfurizing sorbent; 208 hours of operation were successfully completed to expand the PDU data base using limestone as a sorbent. Work continued to resolve problems associated with the available procedures to quantify the reactivity of spent sorbent from PDU in-bed desulfurization testing. A PDU conceptual design was completed for an external sulfation system that will process spent in-bed sorbent. Additional fines recycle studies were conducted on thermal loss and thermal efficiency optimization, and PDU modifications were defined for improved fines recycle performances. These studies considered results of the most recent analyses and observations during in-bed desulfurization test TP-036-5 and external-bed desulfurization test TP-037-1. 6 refs.
Research Organization:
KRW Energy Systems, Inc., Madison, PA (USA)
DOE Contract Number:
AC21-84MC21063
OSTI ID:
5090184
Report Number(s):
DOE/MC/21063-2577; ON: DE88001082
Country of Publication:
United States
Language:
English

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Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
ALKALINE EARTH METAL COMPOUNDS
BENCH-SCALE EXPERIMENTS
CALCIUM CARBONATES
CALCIUM COMPOUNDS
CARBON COMPOUNDS
CARBONATE MINERALS
CARBONATE ROCKS
CARBONATES
CHEMICAL REACTIONS
CHROMATOGRAPHY
COAL FINES
COAL GASIFICATION
DATA ACQUISITION SYSTEMS
DESULFURIZATION
DOCUMENT TYPES
DOLOMITE
FILTERS
FLUIDIZED BEDS
FLUIDS
FUEL GAS
FUELS
FUNCTIONAL MODELS
GAS CHROMATOGRAPHY
GAS FUELS
GASES
GASIFICATION
HOT GAS CLEANUP
KRW GASIFICATION PROCESS
LIMESTONE
MAGNESIUM CARBONATES
MAGNESIUM COMPOUNDS
MATERIALS
MINERALS
OXYGEN COMPOUNDS
PARTICLES
PARTICULATES
PROCESS DEVELOPMENT UNITS
PROGRESS REPORT
PURIFICATION
RECYCLING
ROCKS
SEDIMENTARY ROCKS
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES