Continuous liquefaction of lignite in a process development unit

Conference · Fri Dec 31 23:00:00 EST 1976 · Prepr. Pap. - Am. Chem. Soc., Div. Fuel Chem.; (United States)

OSTI ID:6357216

Severson, D E; Souby, A M; Baker, G G

The unit produces 15 lb/h of solvent-refined lignite (SRL) from 50 lb/h of raw lignite at 700/sup 0/ to 850/sup 0/F and 1500 to 2000 psi hydrogen or carbon monoxide pressure in a high-boiling recycle solvent. The 300/sup 0/ to 400/sup 0/F mp SRL had a higher heat of combustion than the starting lignite, but a higher sulfur and nitrogen content; it was free of ash and entirely pyridine-soluble. Lignite conversion increased with increasing dissolver temperature, but light oil and SRL yields were essentially unaffected; both conversion and yield increased with increasing dissolver pressure and, to a much lesser extent, with increasing solvent-coal ratio.

• Research Organization: Univ. of North Dakota, Grand Forks
• OSTI ID: 6357216
• Journal Information: Prepr. Pap. - Am. Chem. Soc., Div. Fuel Chem.; (United States), Journal Name: Prepr. Pap. - Am. Chem. Soc., Div. Fuel Chem.; (United States) Vol. 22:6; ISSN ACFPA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
AZINES
BROWN COAL
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CARBONACEOUS MATERIALS
CHALCOGENIDES
COAL
COAL LIQUEFACTION
COMBUSTION HEAT
ELEMENTS
ENERGY
ENERGY SOURCES
ENTHALPY
FOSSIL FUELS
FUELS
FUNCTIONAL MODELS
HEAT
HETEROCYCLIC COMPOUNDS
HIGH PRESSURE
HIGH TEMPERATURE
HYDROGEN
LIGNITE
LIQUEFACTION
MATERIALS
NITROGEN
NONMETALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PROCESS DEVELOPMENT UNITS
PYRIDINES
REACTION HEAT
SOLVENT-REFINED COAL
SULFUR
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES