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| Number | Title | Issue Date |
| 8062390 | Methods for binding particulate solids Provided are methods for binding particulate solids in a polymer fiber matrix utilizing composite waste products. A mixture of composite waste products and particulate solids is formed into solid products to create degradation resistant solid units which capture the... | 11/22/2011 |
| 7674303 | Methods for binding particulate solids Provided are methods for binding particulate solids in a polymer fiber matrix utilizing composite waste products. A mixture of composite waste products and particulate solids is formed into solid products to create degradation resistant solid units which capture the... | 03/09/2010 |
| 7332002 | Low sulfur coal additive for improved furnace operation The present invention is directed to additives for coal-fired furnaces, particularly furnaces using a layer of slag to capture coal particles for combustion. The additive(s) include iron, mineralizer(s), handling aid(s), flow aid(s), and/or abrasive material(s). The... | 02/19/2008 |
| 7306635 | Designed cellular coal Coal-based cellular products that can be custom designed to have integral stiffeners or load paths, directed heat transfer paths, and/or directed mass transfer paths and methods for their production are described. Such design and production is made possible by the a... | 12/11/2007 |
| 7247368 | Stealth foam and production method Carbon foams exhibiting a dielectric constant of from about 2 to about 6 and simultaneously an electrical resistivity in the range of between about 1.E+00 ohm-cm and about 1.E+06 ohm-cm, demonstrate excellent radar emission absorptivity in the ... | 07/24/2007 |
| 6849098 | Composite tooling Carbonaceous, composite tooling fabricated from pitch-based or coal-based cellular or porous products, “carbonaceous foams” having a density of preferably between about 0.1 g/cm3 and about 0.8 g/cm3 that are produced by: 1) conventional pit... | 02/01/2005 |
| 6833012 | Petroleum pitch-based carbon foam Petroleum or coal tar pitch-based cellular or porous products having a density of preferably between about 0.1 g/cm3 and about 0.8 g/cm3 are produced by the controlled heating of mesophase carbon materials derived from coal tar or petroleum pit... | 12/21/2004 |
| 6833011 | Activated, coal-based carbon foam An ablation resistant, monolithic, activated, carbon foam produced by the activation of a coal-based carbon foam through the action of carbon dioxide, ozone or some similar oxidative agent that pits and/or partially oxidizes the carbon foam skeleton, thereby signifi... | 12/21/2004 |
| 6749652 | Cellular coal products and processes According to the present invention there is provided a porous coal-based material having a density of between about 0.1 g/cm3 and about 0.6 g/cm3 that is produced by the controlled heating of small coal particulate in a “mold” and under a n... | 06/15/2004 |
| 6656239 | Blended pitch/coal based carbon foams According to the present invention, carbon foams are produced largely in accordance with the methods described in U.S. patent application Ser. No. 09/902,828, but with starting materials that comprise from about 10 to about 90% by weight of ground petrole... | 12/02/2003 |
| 6656238 | Coal-based carbon foam A method for the manufacture of coal-based carbon foams from a coal particulate starting material that comprises blending from 1 to about 10% by weight of pitch with the coal particulate before foaming. Blends of coal-based particulate with 1 to about 10%... | 12/02/2003 |
| 6602306 | Artificial firelog with crackling additives An artificial firelog comprising a mixture of combustible materials and a combustible binder further contains particulate coke comprising about 1% to about 35% by weight of the firelog, the coke particles having a size less than about 4 mm, to create a re... | 08/05/2003 |
| 6524354 | Process for the production of low ash fuel The present invention describes a process for the production of low ash fuel using calcined petroleum coke by crushing and screening of calcined petroleum coke below 3 mm size, mixing the crushed and screened materials to achieve a bulk density in the ran... | 02/25/2003 |
| 6168709 | Production and use of a premium fuel grade petroleum coke A premium "fuel-grade" petroleum coke is produced by modifying petroleum coking technology. Coking process parameters are controlled to consistently produce petroleum coke within a predetermined range for volatile combustible material (VCM) content. The i... | 01/02/2001 |
| 6146432 | Pressure gradient passivation of carbonaceous material normally susceptible to spontaneous combustion This invention is a process for the passivation or deactivation with resp to oxygen of a carbonaceous material by the exposure of the carbonaceous material to an oxygenated gas in which the oxygenated gas pressure is increased from a first pressure to a ... | 11/14/2000 |
| 6126705 | Process for treating coal tailings A process for the recovery of coal particles from coal tailings is described. The process comprises the steps of initially treating the coal tailings to separate therefrom a proportion of the coal particles having sizes in a specified range, and then subj... | 10/03/2000 |
| 6033528 | Process for making blast furnace coke A blast furnace coal is produced by rapidly heating a coal blend having 10 to 30% by weight of a non-slightly-caking coal having softening initiation temperature T with the balance including a caking coal having softening initiation temperature T0 | 03/07/2000 |
| 5752993 | Blast furnace fuel from reclaimed carbonaceous materials and related methods A compressed briquette or other solid shape, object, or article useful as a coke substitute in blast furnaces disclosed as being manufactured so as to comprise a reaction product of fine carbonaceous material (such as coke breeze, coke fines, or petroleum... | 05/19/1998 |
| 5656041 | Method for detoxifying coal-tar deposits In a process for detoxifying a coal-tar deposit, effective amounts of carbon and a calcium oxide containing substance are added at a mixing station to at least a portion of the coal-tar deposit. The reaction mixture thus formed is mixed at a temperature o... | 08/12/1997 |
| 5599361 | Reclaiming and utilizing discarded and newly formed coke breeze, coal fines, and blast furnace revert materials, and related methods A method and a solid fuel product, such as briquettes and pellets, comprising carbon fines, in the form of heretofore discardable coke breeze and/or coal fines and/or revert materials, bound together chemically into smaller pieces to substantially prevent... | 02/04/1997 |
| 5487764 | Reclaiming and utilizing discarded and newly formed coke breeze, coal fines, and blast furnace revert materials, and related methods A method and a solid fuel product, such as briquettes and pellets, comprising carbon fines, in the form of heretofore discardable coke breeze and/or coal fines and/or revert materials, bound together chemically into smaller pieces to substantially prevent... | 01/30/1996 |
| 5486216 | Coke having its pore surfaces coated with carbon and method of coating A method of upgrading characteristics of coke by forming a carbon coating on the pores of the coke by hydrocarbon cracking. A coke having its pores coated with a layer of carbon.... | 01/23/1996 |
| 5453103 | Reclaiming and utilizing discarded and newly formed coke breeze, coal fines, and blast furnace revert materials, and related methods A method and a solid fuel product, such as briquettes and pellets, comprising carbon fines, in the form of heretofore discardable coke breeze and/or coal fines and/or revert materials, bound together chemically into smaller pieces to substantially prevent... | 09/26/1995 |
| 5407560 | Process for manufacturing petroleum cokes and cracked oil from heavy petroleum oil A novel process is disclosed by which petroleum cokes and cracked oil can be produced by thermal cracking of a heavy petroleum oil to which a rare earth metal compound is added. The process produces petroleum cokes with an improved combustibility and prom... | 04/18/1995 |
| 5310494 | Method for controlling dusting of coke and coal A method and composition for control of in-transit and residual dust from coal or coke is provided. The method involves spraying the coal or coke with fluid, preferably water, containing an additive comprised of approximately 90-99% by weight of lignosulf... | 05/10/1994 |
| 4886521 | Decaking of coal or oil shale during pyrolysis in the presence of iron oxides A method for producing a fuel from the pyrolysis of coal or oil shale in the presence of iron oxide in an inert gas atmosphere. The method includes the steps of pulverizing feed coal or oil shale, pulverizing iron oxide, mixing the pulverized feed and iro... | 12/12/1989 |
| 4787915 | Method of varying rheology characteristics of novel coal derived fuel system The rheology of a fluidic, substantially combustible non-polluting liquid/solid slurried fuel system derived in substantial part from hydrodisproportionation of coal is varied by addition of fluidic aqueous mixtures and lower chain alcohols to alter the r... | 11/29/1988 |
| 4661240 | Low sulfur coke using dispersed calcium The sulphur emissive capability, on combustion, of coke which is formed during upgrading of sulphur-containing heavy crude oils, including oil sands bitumen, and residua, is decreased by the addition of calcium carbonate, calcium hydroxide or calcium oxid... | 04/28/1987 |
| 4638952 | Method of fluid coke reduction Apparatus for and method of reducing spherically shaped fluid coke waste by-product pellets into a pulverized condition for use as a fuel in which there is a first grinding and pulverizing mill initially receiving the waste material which, because of its ... | 01/27/1987 |
| 4632731 | Carbonization and dewatering process An energy efficient process for beneficiating and dewatering high water content carbonaceous materials utilizing a pneumatic stream to entrain, transport, dewater and to carbonize organic carbonaceous material in a fluidized bed. The process utilizes phys... | 12/30/1986 |
| 4626258 | Multiple hearth apparatus and process for thermal treatment of carbonaceous materials A multiple hearth reactor apparatus and process for the thermal treatment of organic carbonaceous materials under controlled pressure and temperature comprising in accordance with one embodiment, a pressure vessel containing a plurality of superimposed an... | 12/02/1986 |
| 4624807 | Process for producing microspherical, oil-containing carbonaceous particles A two-step process for producing microspherical pitch or green coke particles having an average diameter of 30-200 μm from finely divided petroleum or coal pitch having a softening point of 60°-220° C. and a fixed carbon content of 40-75 wt %. In the f... | 11/25/1986 |
| 4533463 | Continuous coking of residual oil and production of gaseous fuel and smokeless solid fuels from coal Coal and residual oil are simultaneously processed in a reactor with a combustion zone at the bottom and a fluidized bed on top of it. The residual oil is injected into heat exchange relationship with the top of the fluidized bed where it is cracked with ... | 08/06/1985 |
| 4529717 | Partially calcined carbonaceous material as a reductant An improved solid carbon reductant comprising partially calcined carbonaceous materials such as petroleum coke, containing relatively low amounts of residual hydrocarbons and a relatively high surface area and thus increased activity as compared to known ... | 07/16/1985 |
| 4509957 | Cyclic char gasifier A cyclic char gasifier process and apparatus are described wherein reactant gases are first compressed into the pores of a char fuel to react and then the reacted gases are expanded out of the char fuel pores. This cycle of compression and expansion is re... | 04/09/1985 |
| 4490213 | Coal conversion processes Coal is processed sequentially over a range of temperatures up to a maximum of 750° F. and preferably considerably less to obtain a clean burning coke, refinable petroleum and bitumen products, fertilizer minerals, combustible gases and water; the proces... | 12/25/1984 |
| 4479804 | Fixed sulfur petroleum coke fuel and method for its production A fixed-sulfur, solid fuel product is obtained by an improved coking process wherein petroleum fractions are coked in the presence of added alkaline earth metal oxides. The fixed-sulfur, solid fuel product comprises coke and from about 3 to 30 weight perc... | 10/30/1984 |
| 4475924 | Coal derived fuel composition and method of manufacture Coal char produced by the pyrolytic destructive thermal distillation of coal in the absence of oxygen is beneficiated, ground and sized and then is admixed in suitable portions with a liquid organic fraction to form a combustible, liquid-solid mixture whi... | 10/09/1984 |
| 4465556 | Pyrolysis system with hot gas recirculation A process and system for continuously pyrolyzing organic feedstock produces a solid carbonaceous residue of controlled volatility, in a manner that is highly energy efficient. The value of the gaseous product and of the pyrolytic oil produced are also opt... | 08/14/1984 |
| 4358290 | Burning properties of fluid coke An improved solid fuel obtained by blending fluid coke with 2 to 20 wt. % of a heavy petroleum liquid.... | 11/09/1982 |
