Iron catalyzed coal liquefaction process

Patent · Sat Jan 01 00:00:00 EST 1983

OSTI ID:864752

Garg, Diwakar ^[1]; Givens, Edwin N ^[2]

---

1. Macungie, PA
2. Bethlehem, PA

A process is described for the solvent refining of coal into a gas product, a liquid product and a normally solid dissolved product. Particulate coal and a unique co-catalyst system are suspended in a coal solvent and processed in a coal liquefaction reactor, preferably an ebullated bed reactor. The co-catalyst system comprises a combination of a stoichiometric excess of iron oxide and pyrite which reduce predominantly to active iron sulfide catalysts in the reaction zone. This catalyst system results in increased catalytic activity with attendant improved coal conversion and enhanced oil product distribution as well as reduced sulfide effluent. Iron oxide is used in a stoichiometric excess of that required to react with sulfur indigenous to the feed coal and that produced during reduction of the pyrite catalyst to iron sulfide.

• Research Organization: AIR PRODUCTS & CHEMICALS INC
• DOE Contract Number: AC22-79ET14806
• Assignee: Air Products and Chemicals, Inc. (Allentown, PA)
• Patent Number(s): US 4411766
• OSTI ID: 864752
• Country of Publication: United States
• Language: English

Related Subjects

iron
catalyzed
coal
liquefaction
process
described
solvent
refining
gas
product
liquid
normally
solid
dissolved
particulate
unique
co-catalyst
suspended
processed
reactor
preferably
ebullated
bed
comprises
combination
stoichiometric
excess
oxide
pyrite
reduce
predominantly
active
sulfide
catalysts
reaction
zone
catalyst
results
increased
catalytic
activity
attendant
improved
conversion
enhanced
oil
distribution
reduced
effluent
required
react
sulfur
indigenous
feed
produced
reduction
coal conversion
solid dissolved
solvent refining
iron sulfide
catalytic activity
bed reactor
liquefaction process
coal liquefaction
reaction zone
iron oxide
enhanced oil
liquid product
particulate coal
feed coal
liquefaction reactor
normally solid
sulfide catalysts
stoichiometric excess
oil product
improved coal
gas product
coal solvent
ebullated bed
sulfide catalyst
/208/