Use of basic nitrogen to chemically clean coal: Quarterly report No. 8, 15 December 1988--15 March 1989
Studies were initiated to improve the effect of a basic nitrogen compound on coal desulfurization with m-cresol. Mild coal liquefaction runs were made using tetramethylammonium hydroxide pentahydrate (TMAP), m-cresol, and coal derived distillates in varying concentrations. A series of non-promoted experiments were also conducted for comparison. Results indicate increasing the temperature from 600/degree/F to 700/degree/F significantly increases sulfur removal and pyridine conversion. TMAP and m-cresol concentration does not affect sulfur removal. However, the addition of TMAP increases pyridine conversion for the lignite and subbituminous coals but does not affect the bituminous coal. M-cresol has no effect on pyridine conversion. The interaction between TMAP and m-cresol is not found to be significant. 2 tabs.
- Research Organization:
- Wyoming Univ., Laramie (USA). Dept. of Chemical Engineering
- DOE Contract Number:
- FG22-86PC90538
- OSTI ID:
- 6307208
- Report Number(s):
- DOE/PC/90538-10; ON: DE89009133
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Use of basic nitrogen to chemically clean coal: Quarterly report No. 6 for the period March 15, 1988-June 15, 1988
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Related Subjects
COAL
DESULFURIZATION
ADDITIVES
AMMONIUM HYDROXIDES
COAL LIQUEFACTION
COAL RANK
CRESOLS
NITROGEN
PROGRESS REPORT
PYRIDINE
SOLVENTS
TEMPERATURE EFFECTS
AMMONIUM COMPOUNDS
AROMATICS
AZINES
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
DOCUMENT TYPES
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HETEROCYCLIC COMPOUNDS
HYDROGEN COMPOUNDS
HYDROXIDES
HYDROXY COMPOUNDS
LIQUEFACTION
MATERIALS
NONMETALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PHENOLS
PYRIDINES
THERMOCHEMICAL PROCESSES
010402* - Coal
Lignite
& Peat- Purification & Upgrading
010405 - Coal
Lignite
& Peat- Hydrogenation & Liquefaction