Coal derived/carbon dioxide fuel slurry and method of manufacture
AssigneeCarbon Fuels Corporation
InventorsEdmond G. Meyer, Lee G. Meyer
Life of this patent
Estimating the term…
Abstract
Coal char produced by the pyrolytic destructive thermal distillation of coal in the absence of oxygen is ground, sized and then admixed in suitable portions with a liquid carbon dioxide to form a fluidic, liquid-solid mixture which is a transportation medium for a nonpolluting, stable, high energy solid fuel composition. The liquid organic fraction obtained from the low boiling fractions derived from the pyrolysis of coal is used as a feedstock or as a liquid hydrocarbon fuel.
Claims19
A fluidic, substantially non-polluting fuel transportation system comprising a liquid/solid mixture, including a portion of a particulate coal char, dispersed in an amount of liquid carbon dioxide effective to produce a transportable composition, wherein substantially all of the solid portion is separated at the destination for use as a solid fuel.
A method of producing a substantially non-polluting fluidic fuel transportation system comprising the steps of admixing a particulate coal char with an amount of liquid carbon dioxide effective to produce a transportable liquid/solid mixture;
- transporting said transportable liquid/solid mixture;
- and separating from said transportable liquid/solid mixture substantially all of said solid for use as a fuel.
A method for producing a substantially nonpolluting fluidic fuel transportation system comprising the steps of
- (a) subjecting coal to pyrolysis to produce a coal char, a liquid organic material and a hydrocarbon containing gas;
- (b) treating a coal char to produce a particulate coal char;
- (c) admixing said particulate coal char and liquid carbon dioxide to form said fluidic fuel transportation system;
- (d) transporting said system to a destination;
- and
- (e) removing from said system substantially all of said solid for use as a fuel.
A method of firing a combustion device comprising the steps of:
- (a)injecting a combustible amount of a fuel composition into a combustion chamber wherein said fuel composition is selected from a group consisting of
- (1) a solid material of particulate coal char obtained from removal of at least a portion of the solid of a liquid/solid mixture including a portion of a particulate coal char, dispersed in an amount of liquid carbon dioxide effective to produce a transportable composition;
- (2) a solid coated material of particulate coal char admixed with an amount of the liquid organic material effective to substantially reduce absorption of liquid carbon dioxide and to enhance combustion, such solid coated material being obtained from removal of at least a portion of the solid portion of a liquid/solid mixture including a portion of a coated solid material dispersed in an amount of liquid carbon dioxide effective to produce a transportable composition;
- (b) admixing said combustible amount of said fuel composition with sufficient oxygen to support substantially complete combustion, thus producing a totally combustible mixture;
- (c) heating said combustible mixture to the ignition point;
- (d) sustaining the combustion within said chamber;
- and
- (e) exhausting the combustion by-products from the chamber.
Dependencies are inferred from the claim text.