Atlantic Richfield Company

Bernard F Bonnecaze

James L Skinner

Donald K Wunderlich

Ying H Li

J David Matthews

Ying-Hsiao Li

Louis P Riess

An improved method for cooling particulate solids in an expanded bed by successively charging the particulate solids to a plurality of expanded beds with the exhaust gas from each of the plurality of expanded beds being discarded.

Method for staged cooling of particulate solids

A method for producing a dried particulate coal fuel having a reduced tendency to spontaneously ignite from a low rank coal by drying the low rank coal in a fluidized bed, cooling the resulting dried coal in a fluidized bed cooler, separating coal particles smaller than about 80 Tyler Mesh from the cooled dried coal and treating the cooled dried coal with a deactivating fluid.

Method for producing a dried particulate coal fuel from a particulate

In a process for drying particulate coal by passing a heated gas through the particulate coal in a heating zone and thereafter cooling the dried particulate coal in a cooling zone, an improvement comprising the addition of a controlled quantity of water to the dried coal in the cooling zone so that the coal is cooled by evaporation of the water.

Process for cooling particulate coal

A method for producing a dried coal fuel having a reduced tendency to spontaneously ignite from a low rank coal by drying the low rank coal and thereafter cooling the dried coal to a temperature below about 100.degree. F. Optionally the dried coal is partially oxidized prior to cooling, and optionally the dried coal is mixed with a deactivating fluid.

Growing community of inventors

Littleton, CO, United States of America

Bernard F Bonnecaze