摘要:
Various systems, methods, and programs embodied in computer-readable mediums are provided for the detection of patterns. In one embodiment, a pattern detection method is provided that comprises the step of performing a fractal analysis of a pattern to generate a plurality of scaling parameters from a fractal associated with the pattern in a computer system. In addition, the method further comprises the step of detecting a degree of organization in the pattern by examining a degree of equality among the scaling parameters of the fractal in the computer system.
摘要:
The present disclosure provides methods and systems for coal liquefaction and obtaining a mesophase pitch. A method of obtaining a quinolone insoluble-free and ash-free mesophase pitch may include exposing a coal to a hydrogenated vegetable oil in the presence of a coal-derived solvent to form a slurry, elevating the temperature of the slurry to facilitate liquefying the coal and liberating a volatile matter, separating the insoluble components from the slurry to obtain a de-ashed coal extract that is quinoline insoluble-free, and distilling the coal extract under vacuum to obtain a mesophase pitch with a softening point in the range of 25 degrees Celsius to 160 degrees Celsius, wherein the mesophase pitch can be coked to obtain an anisotropic coke. A quinolone insoluble-free and ash-free pitch may be obtained by the method
摘要:
Various systems, methods, and programs embodied in computer-readable mediums are provided for detecting a match in patterns. In one embodiment, a method is provided that comprises performing a fractal analysis on a first pattern in a computer system to generate a first global quantitative characterization of the first pattern. The method further comprises comparing the first global quantitative characterization with a second global quantitative characterization associated with a second pattern in the computer system to determine whether the first pattern matches the second pattern. The second global quantitative characterization is generated from the second pattern.
摘要:
A method of making an anisotropic or isotropic carbon foam include introducing at least one reinforcing additive which may be carbon nanofibers, carbon nanotubes, chopped graphite fibers, crushed green coke, crushed calcined coke or combinations thereof during the process of manufacturing the carbon foam to enhance selected strength properties of the resultant foam. A resultant product is also disclosed.
摘要:
A process for treatment of anthracite coal when combined with cinders and/or klinker type ash produced by old cleaning plant boilers comprising sizing of the mixture and magnetic separation of the ash from the mixture thereby improving the combustion value. Use for treatment in existing anthracite and cinder waste piles is disclosed.
摘要:
Oil shale or tar sands is extracted under non-thermally destructive conditions with a solvent liquid containing a compound having the general formula: ##STR1## where M is a carbon, sulfur, or phosphorus atom,R.sup.2 and R.sup.3 are each a hydrogen atom or a lower alkyl group,R and R.sup.1 are each a lower alkyl group, another ##STR2## a monocyclic aromatic group, or R.sup.1 can be another ##STR3## or R.sup.1 and R.sup.2 together can represent the atoms necessary to close a heterocyclic ring, andn=1 where M=phosphorus and is otherwise 0,to substantially remove the non-fixed carbon content of the oil shale or tar sands, leaving a solid residue of fixed carbon, ash minerals, and non-extractable matter.
摘要:
The present disclosure provides methods and systems for coal liquefaction using a sewage material. A method of obtaining a de-ashed coal extract includes exposing a coal to a sewage material in the presence of a coal-derived solvent to form a slurry, elevating the temperature of the slurry to facilitate liquefying the coal and liberating a volatile matter, and separating the insoluble components from the slurry to obtain a de-ashed coal extract, wherein the coal extract is suitable for downstream processing.
摘要:
The present disclosure provides methods and systems for coal liquefaction using a sewage material. A method of obtaining a de-ashed coal extract includes exposing a coal to a sewage material in the presence of a coal-derived solvent to form a slurry, elevating the temperature of the slurry to facilitate liquefying the coal and liberating a volatile matter, and separating the insoluble components from the slurry to obtain a de-ashed coal extract, wherein the coal extract is suitable for downstream processing.
摘要:
The present disclosure provides methods and systems for coal liquefaction using a hydrogenated vegetable oil. A method of obtaining a de-ashed coal extract includes exposing a coal to a hydrogenated vegetable oil in the presence of a coal-derived solvent to form a slurry, elevating the temperature of the slurry to facilitate liquefying the coal and liberating a volatile matter, and separating the insoluble components from the slurry to obtain a de-ashed coal extract, wherein the coal extract is suitable for downstream processing.
摘要:
A method of making anisotropic carbon foam material includes de-ashing and hydrogenating bituminous coal, separating asphaltenes from oils contained in the coke precursor, coking the material to create a carbon foam. In one embodiment of the invention, the carbon foam is subsequently graphitized. The pores within the foam material are preferably generally of equal size. The pore size and carbon foam material density may be controlled by (a) altering the percentage volatiles contained within the asphaltenes to be coked, (b) mixing the asphaltenes with different coking precursors which are isotropic in nature, or (c) modifying the pressure under which coking is effected. In another embodiment of the invention, solvent separation is employed on raw bituminous coal and an isotropic carbon foam is provided. A related carbon foam product is disclosed. The carbon foam materials of the present invention are characterized by having high compressive strength as compared with prior known carbon foam materials.