Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 7270743 | Products produced form rapid thermal processing of heavy hydrocarbon feedstocks The present invention is directed to the upgrading of heavy hydrocarbon feedstock that utilizes a short residence pyrolytic reactor operating under conditions that cracks and chemically upgrades the feedstock. The process of the present invention provides for the pr... | 09/18/2007 |
| 6830660 | Method for producing metallurgical coke In a method of producing coke for metallurgy by carbonizing a coal blend obtained by blending plural raw coals in an coke oven, a coal blend containing not less than 60 wt % of a medium coking coal of middle coalification degree and low fluidity having an inert comp... | 12/14/2004 |
| 6365038 | Method of producing combustible products from heavy fuel residue Asphaltene and oil shale are pyrolyzed at substantially atmospheric pressure for producing combustible products and carbonaceous material. A combustor combusts the carbonaceous material and produces flue gases which are supplied to a utilization device, a... | 04/02/2002 |
| 6231787 | Method for manufacturing powdery, vitreous carbon useful for making pastes having predetermined electrical conductivity The invention relates to a method for producing powdery, vitreous carbon, and a paste made therefrom for producing resistive films having predetermined electrical conductivity. In production methods known in the art, pyrolysis of acrylamides is performed ... | 05/15/2001 |
| 5789636 | Process for recovering synthetic raw materials and fuel components from used or waste plastics The invention concerns a process for recovering synthetic raw materials and fluid fuel components from used or waste plastics in accordance with patent application P 43 11 034,7. At least a partial flow of the depolymer produced according to this process ... | 08/04/1998 |
| 5780696 | Process for recycling plastic waste The invention relates to a process for recycling waste which consists essentially of one or more plastics comprising polyvinyl chloride (PVC), in which: the waste is mixed with a heavy oil, in a reactor under an inert atmosphere, at an internal temperatur... | 07/14/1998 |
| 5464876 | Process for the recovery of valuable materials during the work-up of polyvinyl chloride Heating of polyvinyl chloride, in particular plasticizer-containing polyvinyl chloride, to a temperature of from 250° to 500° C. in the absence of oxygen gives a low-chlorine, carbon-containing residue, plasticizer and hydrogen chloride.... | 11/07/1995 |
| 5423951 | Process of continuously making coke of high density and strength Pieces of coke of high density and strength are made continuously from fine particles of bituminous or subbituminous or lignite coals or of mixtures thereof. The particles are generally oxygenated, mixed with water, compressed to squeeze out some of the w... | 06/13/1995 |
| 4662895 | Method of cooling and gasifying retort coal A method and apparatus of cooling retort coke is disclosed which provides for cooling hot coke from a coking chamber by direct heat exchange with fine-grained material, preferably coal, and the subsequent separation of the fine-grained material from lump ... | 05/05/1987 |
| 4559060 | Upgrading method of low-rank coal A upgrading method of low-rank coal containing higher ash and moisture contents into coal decreased in ash content and decreased in moisture content and heightened in heating value includes subjecting the low-rank coal to a low-temperature dry distillatio... | 12/17/1985 |
| 4557733 | Formcoke process Green coal is charred in pre- and post- treatment carbonizers, then crushed, mixed with pitch, briquetted, tempered in a tempering oven, recirculated with succeeding green coal to char in a reducing atmosphere through only the latter part of the pre-treat... | 12/10/1985 |
| 4475986 | Stable activated carbon process using a moving grate stoker furnace Carbonaceous raw material, such as lignite coal, having first been passed successively through a moving grate stoker furnace, a shaft furnace and a quench chamber is screened so as to remove from the end product substantially all +12 mesh and larger parti... | 10/09/1984 |
| 4461627 | Upgrading method of low-rank coal A coal is finely pulverized. The finely pulverized coal is subjected to dry distillation. A tar obtained by the dry distillation is added to an aqueous slurry together with the dry-distilled coal to effect the submerged granulation.... | 07/24/1984 |
| 4421524 | Method for converting organic material into fuel In the method, organic, i.e. carbon-containing, material, such as straw, wood chips, sawdust, or dead bacterial waste from a sewage treatment plant, is heated in a pyrolytic reactor, thereby driving off volatiles from the organic material, including hydro... | 12/20/1983 |
| 4419186 | Process for making strong metallurgical coke The strength and density of a metallurgical coke produced in a slot coke oven are both increased by replacing at least a part of the normal loose charge in the oven with compacted materials and fragments thereof made from a mixture of particularly sized p... | 12/06/1983 |
| 4395309 | Fractional distillation of hydrocarbons from coal Process and apparatus for recovering volatile distillates from coal, and other solid carbonaceous fuel sources, by heating the top surface of a bilayer of coal formed of an upper layer of recycled coal and a lower layer of green coal, maintaining the lowe... | 07/26/1983 |
| 4373994 | Pyrolysis process and apparatus This invention discloses a process and apparatus for pyrolyzing particulate coal by heating with a particulate solid heating media in a transport reactor. The invention tends to dampen fluctuations in the flow of heating media upstream of the pyrolysis zo... | 02/15/1983 |
| 4366026 | Process for the production of coke or semicoke In the continuous production of coke or semicoke from coal grains and/or fines an inclined air-tight rotating tubular oven is fed with coal grains and/or fines from a hopper. As the coal grains and/or fines progress down the rotating oven they are heated ... | 12/28/1982 |
| 4359363 | Apparatus for entrained coal pyrolysis This invention discloses a process and apparatus for pyrolyzing particulate coal by heating with a particulate solid heating media in a transport reactor. The invention tends to dampen fluctuations in the flow of heating media upstream of the pyrolysis zo... | 11/16/1982 |
| 4358344 | Process for the production and recovery of fuel values from coal A method of pyrolyzing and desulfurizing coal in a transport reactor to recover volatile fuel values and hydrogen by heating particulate coal entrained in a carrier gas substantially free of oxygen to a pyrolysis temperature in a zone within three seconds... | 11/09/1982 |
| 4351702 | Processing of heavy high-sulfur feedstocks A heavy high-sulfur hydrocarbonaceous feedstock is partially delayed coked and partially formcoked. The coke products are screened, with larger particles being calcined at desulfurizing temperatures and smaller particles being recycled to the formcoker. O... | 09/28/1982 |
| 4334959 | Mixing method and apparatus Method of mixing particulate materials comprising contacting a primary source and a secondary source thereof whereby resulting mixture ensues; preferably at least one of the two sources has enough motion to insure good mixing and the particulate materials... | 06/15/1982 |
| 4326853 | Coke production from liquid derived from sub-bituminous and/or lignitic coal In the liquefaction of a sub-bituminous and/or lignitic coal, an ash containing coal liquid is heated to a temperature of from 410° C. to 450° C., and delayed coked adiabatically at a pressure of from 15 psig to 120 psig to produce an ash containing sof... | 04/27/1982 |
| 4256539 | Method of generating gas and coke dust by rapid degasification and rapid vaporization A method of generating gas and coke dust by means of rapid degasification and rapid vaporization, with simultaneous extensive desulfurization, of coal ground into dust. In a first step, one portion of coal is subjected to complete or partial vaporization.... | 03/17/1981 |
| 4248669 | Process for making metallurgical coke using fluidizer char The present invention is an improvement in the known process of making a coking feedstock from non-caking or weakly caking coals for slot-type coke ovens wherein the coal is subjected to solvent extraction; and at least the non-distillable extract in the ... | 02/03/1981 |
| 4243489 | Pyrolysis reactor and fluidized bed combustion chamber A solid carbonaceous material is pyrolyzed in a descending flow pyrolysis reactor in the presence of a particulate source of heat to yield a particulate carbon containing solid residue. The particulate source of heat is obtained by educting with a gaseous... | 01/06/1981 |
| 4230528 | Method for starting up plant for producing fine coke Prior to starting up a plant in which fine coke is produced by mixing high bituminous lignite coal with circulating hot fine coke serving as a heat carrier in the plant, hot inert gas is admitted into the mixing unit in which the coal and coke are admixed... | 10/28/1980 |
| 4211606 | Method for thermal processing bitumen-containing materials and device for realization of same Bitumen-containing material is processed by distillation with a solid heat-carrier with subsequent gasification of the distillation residue and combustion of the gasification residue in an aerofountain furnace. During gasification, the formed flue gas and... | 07/08/1980 |
| 4202734 | Method for producing calcined coke pellets An improved method for producing calcined coke agglomerates having good stability including adjusting the fluidity of coals or blends of coals to within a range of 1300 DDPM and 3000 DDPM, mixing the coals or blends of coals with char and optionally toppe... | 05/13/1980 |
| 4201655 | Process for making metallurgical coke An improved process for making metallurgical coke is provided as follows. An effluent slurry consisting essentially of coal extract, solvent and undissolved coal is obtained from the liquefaction of coal by solvent extraction. Solvent is removed from the ... | 05/06/1980 |
| 4200495 | Prevention of defluidization in the treatment of caking carbonaceous solids In the introduction of fresh carbonaceous particles into a fluid-bed reaction zone at injection velocities in excess of 20 ft/sec, a shroud gas is passed through a shroud passage on the injection nozzle at a velocity in excess of about 750 ft/sec, prefera... | 04/29/1980 |
| 4200494 | Method of preventing defluidization of carbonaceous particles Fresh carbonaceous particles are introduced into a fluid-bed reaction zone containing a bed of non-agglomerating particles at an injection velocity in excess of about 200 ft/sec with the fresh particles having been preheated to a temperature within the pl... | 04/29/1980 |
| 4163693 | Fluidizing a mixture of particulate coal and char Method of mixing particulate materials comprising contacting a primary source and a secondary source thereof whereby resulting mixture ensues; preferably at least one of the two sources has enough motion to insure good mixing and the particulate materials... | 08/07/1979 |
| 4162943 | Slot pyrolysis reactor and method of pyrolysis Apparatus for conducting the flash pyrolysis of a primary material, particularly coal, and employing a secondary material, particularly hot char, as a heat source, comprising a rectangular slot for injection of a stream of particulate coal, which communic... | 07/31/1979 |
| 4162959 | Production of hydrogenated hydrocarbons In a continuous process for recovery of values from a solid carbonaceous material, the carbonaceous material is pyrolyzed in the presence of a particulate source of heat to yield a particulate carbon containing residue of pyrolysis and volatilized hydroca... | 07/31/1979 |
| 4159905 | Method of manufacturing green hot briquettes from fine coal for use in shaft furnaces A method of manufacturing a briquetted coke from fine coal comprises carbonizing the coal at a temperature of from around 600° to 900° C., mixing the carbonized coal with approximately 10 to 80% and preferably from 20 to 40% of fine coal well caking coa... | 07/03/1979 |
| 4156596 | Coke oven system and agglomerating carryover fines therein A coke oven system is provided having a coke oven preferably with pipeline charging for converting coal into coke. Carryover fines are collected from the coke oven and preferably a preheater therefor, and then agitated by agitator means and the collected ... | 05/29/1979 |
| 4153514 | Pyrolysis process for solid wastes A process for the recovery of chemical values from waste solids, wherein shredded waste solids are intermixed with hot char and a carrier gas in turbulent flow and passed through a pyrolysis zone under turbulent conditions at a temperature ranging from ab... | 05/08/1979 |
| 4151044 | Process for the pyrolysis of carbonaceous materials in a double helix cyclone Solid carbonaceous materials are pyrolyzed by introducing a low velocity stream of carbonaceous material into a cyclone reactor-separator and introducing a low velocity stream of a particulate source of heat into the cyclone reactor-separator at an angle ... | 04/24/1979 |
| 4148692 | Process for producing low reactivity calcined coke agglomerates A process for producing calcined coke agglomerates characterized by having a low reactivity to carbon dioxide. The process includes calcining green coal agglomerates at a temperature within the range of 1700° F. to 1950° F. (927° C. to 1066° C.) in a ... | 04/10/1979 |
