Gasifier slag and feedstock characterization. Final technical report

Technical Report · Tue Mar 01 04:00:00 EST 1983

DOI:https://doi.org/10.2172/6868826· OSTI ID:6868826

Lancet, M. S.; Havekotte, D. E.; Sim, F. A.; Sivasubramanian, R.

The purpose of this subcontract work was to establish the gasification reactivities and ash and slag properties of several Midwestern coals and Kerr-McGee ash concentrates which would be available to the SRC-I demo plant as gasifier feedstocks to produce process hydrogen. The ash concentrates are high ash by-products of the Kerr-McGee critical solvent deashing (CSD) process which is a leading candidate for solids removal at the SRC-I demo plant. Four Midwestern coals, three from Kentucky and one from Illinois, and six Kerr-McGee ash concentrate samples produced at the SRC-I pilot plant in Wilsonville, Alabama, were characterized in this work. In addition to complete chemical analysis, a petrographic analysis was performed on each coal sample. CO/sub 2/-carbon reactivities of chars produced during the pressurized coking at simulated gasifier conditions of all ten materials were determined. These reactivities were measured under pressure (300 psig) at 800/sup 0/C, and at 950/sup 0/C and 1 atmosphere. The results of the atmospheric high temperature reactivity determinations suggest that all materials tested should be sufficiently reactive for use in a Koppers-Totzek or Texaco slagging gasifier. The pressurized, 800/sup 0/C reactivities are fairly low for every material tested. This is consistent with the reactivities of Eastern and midcontinent bituminous coals and limits the desirability of using these coals and Kerr-McGee ash concentrates as feedstocks to lower temperature, when coupled with the low fusion temperatures of the ashes from all of these materials, virtually precludes their economic useage in a conventional (dry-bottom) Lurgi gasifier. 11 references, 5 figures, 26 tables.

• Research Organization: Conoco, Inc., Library, PA (USA). Coal Research Div.; International Coal Refining Co., Allentown, PA (USA)
• DOE Contract Number: AC05-78OR03054
• OSTI ID: 6868826
• Report Number(s): DOE/OR/03054-15; ON: DE84014443
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
ASHES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CARBONACEOUS MATERIALS
CARBONIZATION
CHALCOGENIDES
CHARS
CHEMICAL COMPOSITION
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COAL
COAL GASIFICATION
COAL LIQUEFACTION
COAL LIQUEFACTION PLANTS
COKING
DATA
DECOMPOSITION
ENERGY SOURCES
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
GASIFICATION
GKT PROCESS
INDUSTRIAL PLANTS
INFORMATION
KINETICS
LIQUEFACTION
MATERIALS
MELTING
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PETROGRAPHY
PHASE TRANSFORMATIONS
PYROLYSIS
PYROLYSIS PRODUCTS
REACTION KINETICS
RESIDUES
SLAGS
SRC PROCESS
TEMPERATURE DEPENDENCE
THERMOCHEMICAL PROCESSES
VISCOSITY