1
David S Hoover, Edwin N Givens: Process for coal liquefaction employing selective coal feed. International Coal Refining Company, Mark F Wachter, August 9, 1983: US04397732 (224 worldwide citation)

An improved coal liquefaction process is provided whereby coal conversion is improved and yields of pentane soluble liquefaction products are increased. In this process, selected feed coal is pulverized and slurried with a process derived solvent, passed through a preheater and one or more dissolver ...


2
Ilse S Kingsley: Sequential elution process. International Coal Refining Company, January 6, 1987: US04634680 (17 worldwide citation)

A process and apparatus for the separation of complex mixtures of carbonaceous material by sequential elution with successively stronger solvents. In the process, a column containing glass beads is maintained in a fluidized state by a rapidly flowing stream of a weak solvent, and the sample is injec ...


3
Frank K Schweighardt: Automated process for solvent separation of organic/inorganic substance. International Coal Refining Company, July 29, 1986: US04603115 (16 worldwide citation)

There is described an automated process for the solvent separation of organic/inorganic substances that operates continuously and unattended and eliminates potential errors resulting from subjectivity and the aging of the sample during analysis. In the process, metered amounts of one or more solvent ...


4
Dennis R Lennon, Richard B Snedden, Edward P Foster, George T Bellas: Firing of pulverized solvent refined coal. International Coal Refining Company, James W Hellwege, May 15, 1990: US04924784 (13 worldwide citation)

A burner for the firing of pulverized solvent refined coal is constructed and operated such that the solvent refined coal can be fired successfully without any performance limitations and without the coking of the solvent refined coal on the burner components. The burner is provided with a tangentia ...


5
Eugene J Greskovich, Edwin N Givens: Carbon fibers from SRC pitch. International Coal Refining Company, Russell L Brewer, E Eugene Innis, June 9, 1981: US04272501 (12 worldwide citation)

This invention relates to an improved method of manufacturing carbon fibers from a coal derived pitch. The improvement resides in the use of a solvent refined coal which has been hydrotreated and subjected to solvent extraction whereby the hetero atom content in the resulting product is less than 4. ...


6
George W Roberts, John C Tao: Process for producing low-sulfur boiler fuel by hydrotreatment of solvent deashed SRC. International Coal Refining Company, August 13, 1985: US04534847 (11 worldwide citation)

In this invention, a process is disclosed characterized by heating a slurry of coal in the presence of a process-derived recycle solvent and passing same to a dissolver zone, separating the resultant gases and liquid/solid products therefrom, vacuum distilling the liquid/solids products, separating ...


7
T Craig Derbidge, James A Mulholland, Edward P Foster: Firing of pulverized solvent refined coal. International Coal Refining Company, February 18, 1986: US04570551 (11 worldwide citation)

An air-purged burner for the firing of pulverized solvent refined coal is constructed and operated such that the solvent refined coal can be fired without the coking thereof on the burner components. The air-purged burner is designed for the firing of pulverized solvent refined coal in a tangentiall ...


8
Edwin N Givens: Coal Liquefaction desulfurization process. International Coal Refining Company, Mark F Wachter, March 8, 1983: US04376032 (9 worldwide citation)

In a solvent refined coal liquefaction process, more effective desulfurization of the high boiling point components is effected by first stripping the solvent-coal reacted slurry of lower boiling point components, particularly including hydrogen sulfide and low molecular weight sulfur compounds, and ...


9
Ronald W Skinner, John C Tao, Samuel Znaimer: Two-stage coal liquefaction process. International Coal Refining Company, Kimbley L Muller, January 1, 1985: US04491511 (9 worldwide citation)

An improved SRC-I two-stage coal liquefaction process which improves the product slate is provided. Substantially all of the net yield of 650.degree.-850.degree. F. heavy distillate from the LC-Finer is combined with the SRC process solvent, substantially all of the net 400.degree.-650.degree. F. mi ...


10
Robert M Thorogood: Convective heater. International Coal Refining Company, Mark F Wachter, December 27, 1983: US04422411 (8 worldwide citation)

A convective heater for heating fluids such as a coal slurry is constructed of a tube circuit arrangement which obtains an optimum temperature distribution to give a relatively constant slurry film temperature. The heater is constructed to divide the heating gas flow into two equal paths and the tub ...



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