Liquefaction of lignite by the COSTEAM process

Technical Report · Sat Mar 01 04:00:00 EDT 1975

OSTI ID:6161838

Del Bel, E; Friedman, S; Yavorsky, P M; Wender, I

Carbon monoxide, 0.7 H/sub 2/:1.0 CO and 3 H/sub 2/:1 CO mole ratio synthesis gases were employed in a process variable study of the parameters influencing the oil yield from a North Dakota lignite. A slurry composed of 30 wt % pulverized coal in anthracene oil was pumped in continuous operations into a one-liter stirred reactor where effective interphase contact was achieved by a turbine type agitator. Pressures of 2000, 3000, and 4000 psig; temperatures from 375 to 450/sup 0/C and residence times of 1 and 2 hours were among the parameters evaluated. Oil yields of greater than 60 wt % of the moisture and ash free (m.a.f.) lignite were attained with carbon monoxide and 3 H/sub 2/:1 CO synthesis gas at 4000 psig, 400 and 425/sup 0/C respectively, and 2 hours residence time; a maximum oil yield of 52 wt % was attained with 0.7 H/sub 2/:1 CO process gas. 6 figures, 3 tables.

• Research Organization: Department of Energy, Pittsburgh, PA (USA). Pittsburgh Energy Research Center
• OSTI ID: 6161838
• Report Number(s): CONF-750329-5; ON: DE83008208
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
BROWN COAL
CARBONACEOUS MATERIALS
COAL
COAL LIQUEFACTION
COSTEAM PROCESS
DATA
DISPERSIONS
ENERGY SOURCES
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
INFORMATION
LIGNITE
LIQUEFACTION
MATERIALS
MIXTURES
NUMERICAL DATA
OIL YIELDS
SLURRIES
SUSPENSIONS
THERMOCHEMICAL PROCESSES
YIELDS