Method for controlling boiling point distribution of coal liquefaction oil product
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. 3 figs.
- Research Organization:
- Pittsburth and Midway Coal
- DOE Contract Number:
- AC01-79ET14800
- Assignee:
- Pittsburg Midway Coal Mining Co., Englewood, CO (United States)
- Patent Number(s):
- US 4364817; A
- Application Number:
- PPN: US 6-237762
- OSTI ID:
- 7159516
- Resource Relation:
- Patent File Date: 4 Mar 1981
- Country of Publication:
- United States
- Language:
- English
Similar Records
Short residence time coal liquefaction process including catalytic hydrogenation
Short residence time coal liquefaction process including catalytic hydrogenation
Related Subjects
COAL LIQUEFACTION
PROCESS CONTROL
COAL LIQUIDS
CHEMICAL REACTION YIELD
COAL
DISTILLATES
FUEL SLURRIES
PROCESS SOLUTIONS
RECYCLING
VISCOSITY
CARBONACEOUS MATERIALS
CONTROL
DISPERSIONS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUELS
LIQUEFACTION
LIQUIDS
MATERIALS
MIXTURES
SLURRIES
SOLUTIONS
SUSPENSIONS
THERMOCHEMICAL PROCESSES
YIELDS
010405* - Coal
Lignite
& Peat- Hydrogenation & Liquefaction