Coal-gasification basic research and cost studies. Quarterly report No. 5

Technical Report · Fri Jan 14 04:00:00 EST 1983

OSTI ID:6482084

Work was continued on basic research and cost studies supporting the Department of Energy's coal gasification program. Two major activities or tasks are being performed. The first activity (Task I) is the development of a process or processes to produce agglomerates from coal fines suitable for use as a feed to fixed-bed gasifiers. Seven US coals are being investigated. The second activity (Task II) is a design and cost study to examine the effects of gasifier selection on overall plant costs for a commercial-scale coal gasification facility. More than 100 pelletizing runs were performed during the quarter; these were in addition to the pelletizing runs made earlier. Like with briquettes, a large number of coal-binder compositions showed promise as a good gasifier feed material. Although, in general, the pellets were weaker than briquettes of similar compositions, many pellets displayed reasonably good strengths. The principal problem with pellets was their low green strengths. The strengths of pellets generally increased significantly upon drying and fell off only slightly during exposure to gasification temperatures. Of the binders examined, bentonite and gilsonite were found to be best. Task II work centered on: (1) bringing the original cost estimates for the proposed Erie Mining gasification plant up to date; and (2) designing a large briquetting facility, incorporating this facility into the Erie Mining plant designs, and developing cost estimates for the complete plant.

• Research Organization: McKee (Davy) Corp., Cleveland, OH (USA)
• DOE Contract Number: AC21-81FE05147
• OSTI ID: 6482084
• Report Number(s): DOE/FE/05147-1371; ON: DE83007400
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
AGGLOMERATION
BINDERS
BRIQUETTING
COAL FINES
COAL GASIFICATION
COAL GASIFICATION PLANTS
COMPARATIVE EVALUATIONS
COST
DATA
ENGINEERING
EXPERIMENTAL DATA
FABRICATION
GASIFICATION
INDUSTRIAL PLANTS
INFORMATION
MOLDING
NUMERICAL DATA
PELLETIZING
THERMOCHEMICAL PROCESSES