Catalytic activity of coal minerals in coal liquefaction

Conference · Sun Jan 01 04:00:00 EST 1978 · 84th AICHE Natl. Meet. Prepr.; (United States)

OSTI ID:6894072

Lee, J M; Vanbrackle, H F; Lo, Y L; Tarrer, A R; Guin, J A

Activity is studied in a tubing-bomb reactor with charges of 2.4 g coal and 4.8 g solvent and in an autoclave with charges of 40 g coal and 80 g solvent. Highly volatile bituminous coals (Kentucky No. 9/14 or Illinois No. 6) were hydrogenated with either tetralin or light recycle oil (LRO) from the Wilsonville SRC (Solvent Refined Coal) pilot plant. The major role of catalysts appears to be the replenishment of hydrogen donor species in the solvent, which is the over-all rate-limiting step in coal liquefaction. Addition or recycle of iron as SRC residue ash in the process stream may be advantageous, because it is an active catalyst in both hydrogenation and hydrodesulfurization and has an ability for H/sub 2/S removal by direct reaction. Adequate yield and desulfurization are attainable at lower temperature and perhaps lower pressure if mineral catalysis is used. Hydrogen consumption can also be significantly reduced when operating at lower temperature with a mineral catalyst.

• Research Organization: Auburn Univ.
• OSTI ID: 6894072
• Report Number(s): CONF-780223-
• Conference Information: Journal Name: 84th AICHE Natl. Meet. Prepr.; (United States) Journal Volume: 51B
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
BITUMINOUS COAL
BLACK COAL
CARBONACEOUS MATERIALS
CATALYSTS
CATALYTIC EFFECTS
COAL
COAL LIQUEFACTION
ENERGY SOURCES
FOSSIL FUELS
FUELS
LIQUEFACTION
MATERIALS
MINERALS
SRC PROCESS
TEMPERATURE EFFECTS
THERMOCHEMICAL PROCESSES