Method for controlling boiling point distribution of coal liquefaction oil product

Patent · Tue Dec 21 00:00:00 EST 1982

OSTI ID:864441

Anderson, Raymond P ^[1]; Schmalzer, David K ^[2]; Wright, Charles H ^[1]

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1. Overland Park, KS
2. Englewood, CO

The relative ratio of heavy distillate to light distillate produced in a coal liquefaction process is continuously controlled by automatically and continuously controlling the ratio of heavy distillate to light distillate in a liquid solvent used to form the feed slurry to the coal liquefaction zone, and varying the weight ratio of heavy distillate to light distillate in the liquid solvent inversely with respect to the desired weight ratio of heavy distillate to light distillate in the distillate fuel oil product. The concentration of light distillate and heavy distillate in the liquid solvent is controlled by recycling predetermined amounts of light distillate and heavy distillate for admixture with feed coal to the process in accordance with the foregoing relationships.

• Research Organization: Pittsburth and Midway Coal
• DOE Contract Number: AC01-79ET14800
• Assignee: Pittsburg & Midway Coal Mining Co. (Englewood, CO)
• Patent Number(s): US 4364817
• Application Number: 06/237,762
• OSTI ID: 864441
• Country of Publication: United States
• Language: English

Related Subjects

method
controlling
boiling
distribution
coal
liquefaction
oil
product
relative
ratio
heavy
distillate
light
produced
process
continuously
controlled
automatically
liquid
solvent
form
feed
slurry
zone
varying
weight
inversely
respect
desired
fuel
concentration
recycling
predetermined
amounts
admixture
accordance
foregoing
relationships
fuel oil
liquefaction zone
feed slurry
liquefaction process
coal liquefaction
liquid solvent
feed coal
light distillate
heavy distillate
predetermined amount
weight ratio
oil product
continuously controlled
predetermined amounts
liquefaction oil
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