A 50-month gasifier mechanistic study and downstream unit process development program for the pressurized ash-agglomerating fluidized-bed gasification system: Annual technical progress report, September 1987--September 1988

Technical Report · Wed Mar 01 04:00:00 EST 1989

OSTI ID:5697633

Schmidt, D K; Datta, S; Haldipur, G B; Katta, S; Kettering, E; Lucas, J L; Smith, K J

KRW Energy Systems Inc. has been engaged in a coal gasification and hot gas cleanup technology development program at its pilot plant located at the Waltz Mill Site near Pittsburgh, PA. The coal gasification development program is now considered to be complete, and the primary focus of recent efforts under this contract has been on hot gas cleanup (HGCU). The external hot gas cleanup system at the KRW pilot plant was commissioned in July 1986. Through May 1988, 14 hot gas cleanup tests and 16 external desulfurization cycles were completed to develop a zinc ferrite desulfurization process; included were 953 hours of sulfidation and 623 hours of zinc ferrite regeneration. The external desulfurization tests were integrated with in-bed desulfurization tests conducted in the KRW gasifier-desulfurizer. Fourteen in-bed desulfurization tests were conducted, comprising 700 hours with dolomite injection and 1700 hours with dolomitic limestone injection. From September 30, 1987 through September 30, 1988, the period covered by this report, HGCU test plans TP-037-7, TP-037-8 and TP-037-9 were completed. These tests are discussed in this report. Additionally, a final privately-sponsored test was conducted in July 1988. Following the July test, the pilot plant subsystems were secured and winterized such that the plant will be maintained in a standby condition. 6 refs., 87 figs., 57 tabs.

• Research Organization: KRW Energy Systems, Inc., Madison, PA (USA)
• DOE Contract Number: AC21-84MC21063
• OSTI ID: 5697633
• Report Number(s): DOE/MC/21063-2708; ON: DE89000975
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
010800 -- Coal
Lignite
& Peat-- Waste Management
AGGLOMERATING ASH PROCESS
CHEMICAL REACTIONS
COAL GASIFICATION
DESULFURIZATION
DOCUMENT TYPES
FERRIMAGNETIC MATERIALS
FERRITES
FLUIDIZED BEDS
FUNCTIONAL MODELS
GASIFICATION
HOT GAS CLEANUP
IRON COMPOUNDS
MAGNETIC MATERIALS
MATERIAL BALANCE
MATERIALS
MODIFICATIONS
OXYGEN COMPOUNDS
PERFORMANCE
PROCESS DEVELOPMENT UNITS
PROGRESS REPORT
PURIFICATION
SULFIDATION
TESTING
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
ZINC COMPOUNDS