Conoco Inc.

Continental Oil Company

The United States of America As Represented by the United States

Francis P Burke

Heeyoung Yoon

Limestone is calcined by being suspended in hot gas produced by combustion of a low-carbon fuel to produce a quicklime of high surface area, which in one embodiment is used for flue gas desulfurization.

Method for producing reactive lime and reducing sulfur dioxide

An improved method and apparatus for deashing an effluent slurry from a coal liquefaction process is provided. A mixture of relatively coarse coal-derived solids and a precipitating solvent is stirred with the effluent slurry to form hard, discrete agglomerate pellets of improved settling rates.

Method and apparatus for deashing coal liquefaction effluents

A solvent extraction coal conversion process is provided wherein the effluent slurry product is subjected to vacuum distillation to yield distillate and extrudable still bottoms. The latter are removed from the vacuum still by means of an extrusion screw which is operatively associated with the still.

Treatment of coal liquefaction effluent

An improved method for agglomerating finely divided carbonaceous solids is disclosed. The method comprises mixing the solids with oil having a softening point above about 100.degree. C in an aqueous medium at a temperature above about 120.degree. C and at a pressure greater than about 1000 mm Hg.

Growing community of inventors

Bethel Park, PA, United States of America

Francis P Burke