Recent advances in catalysis of lignite liquefaction

Conference · 01 January 1983

OSTI ID:6255521

Rindt, J R; Wilson, W G; Stenberg, V I

Distillate yields from U.S. lignites can be as high on a moisture and ash-free basis as those obtained from bituminous coals, when vacuum bottoms are recycled. Lignites are more readily liquefied if the reducing gas contains some carbon monoxide and water, however, even with bottoms recycle a major problem associated with noncatalytic tests has been the high viscosity of the bottoms. Future improvements in liquefaction processes for lignite must maintain high liquid yields at reduced reaction severity and decreased product viscosity while using less reductant, preferably in the form of synthesis gas (CO + H/sub 2/) instead of the more expensive pure hydrogen. This report is a summary of the DOE-funded cooperative research using tubing bomb data obtained by the UND Department of Chemistry, batch autoclave data obtained by the UND Department of Chemical Engineering plus continuous process unit (CPU) data from the Grand Forks Energy Technology Center (GFETC). It includes work done with the following disposable catalyst: (1) FeS/sub 2/ (pyrite); (2) Fe/sub 3/O/sub 4/ (magnetite); (3) Fe/sub 2/O/sub 3/ (mill scale); (4) K/sub 2/CO/sub 3/ (potassium carbonate); (5) elemental sulfur; and (6) H/sub 2/S.

• Research Organization: North Dakota Univ., Grand Forks (USA). Dept. of Chemistry
• DOE Contract Number: FC01-83FE60181
• OSTI ID: 6255521
• Report Number(s): DOE/FE/60181-11; CONF-830542-8; ON: DE83011801
• Conference Information: 12. lignite conference, Grand Forks, ND, USA, 18 May 1983
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
ALKALI METAL COMPOUNDS
ASHES
AUTOCLAVES
BROWN COAL
CARBON COMPOUNDS
CARBONACEOUS MATERIALS
CARBONATES
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL COMPOSITION
COAL
COAL LIQUEFACTION
COMPARATIVE EVALUATIONS
DATA
ELEMENTS
ENERGY SOURCES
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
INFORMATION
IRON COMPOUNDS
IRON OXIDES
IRON SULFIDES
LIGNITE
LIQUEFACTION
MATERIALS
NONMETALS
NUMERICAL DATA
ORGANIC SOLVENTS
OXIDES
OXYGEN COMPOUNDS
POTASSIUM CARBONATES
POTASSIUM COMPOUNDS
RECYCLING
RESIDUES
SOLVENTS
STRUCTURAL MODELS
SULFIDES
SULFUR
SULFUR COMPOUNDS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
VISCOSITY