Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 7238222 | Thermal synthesis production of steel A process for producing liquid steel is disclosed. Carbon monoxide and oxygen may be combusted in a high temperature reactor. Iron and iron oxide materials, along with scrap steel if desired, may be placed in the high temperature reactor. Carbon dioxide produced in ... | 07/03/2007 |
| 5584970 | Process of producing wood charcoal in a moving bed The biomass, particularly lump wood, is supplied to a shaft reactor at its top and is initially preheated to temperatures of about 150° to 280° C. and dried by a counterflowing hot gas. This is followed by a treatment in an underlying carbonizing zone, ... | 12/17/1996 |
| 5525196 | Process for producing formed activated coke An improved process for producing a formed activated coke for simultaneous desulfurization and denitrification, which includes passing a ground coal through a tubular or cylindrical carbonization retort by using a hot gas stream, to subject the coal to pr... | 06/11/1996 |
| 5435890 | Apparatus for producing a rubber extender/plasticizing agent from used automobile rubber tires A preferred embodiment of the apparatus 10 for recycling used automobile rubber tires is described in which small pieces of rubber tires are progressively fed into a vertical reactor 14 of the counter-flow type in which the material progressively descends... | 07/25/1995 |
| 5240565 | Apparatus for converting paper mill waste sludge into charcoal Apparatus for the production of charcoal by the comingling of a source of wood and ground sludge where the sludge is received from a paper making plant as wet sludge, grinding the wet sludge to a desired reduction, feeding the ground sludge into a furnace... | 08/31/1993 |
| 5106390 | Gasification process using a multi-layer reaction bed, to destroy toxic material and produce synthesis gas An improve gasification system, in which synthesis gas is produced through the operation of a fuel gas production bed comprising an upper layer (66) of organic input material, typically in the form of pellets or briquettes of substantially uniform size an... | 04/21/1992 |
| 5068010 | Apparatus for securing oil, gas and by-products from pyrobituminous shale and other matter impregnated with hydrocarbons An apparatus for removing oil, gas and by-products from pyrobituminous shale impregnated with hydrocarbons utilizes a vertically disposed reactor having a top portion, a middle portion and a bottom portion. As shale is introduced into the top portion of t... | 11/26/1991 |
| 5034021 | Apparatus for thermal pyrolysis of crushed coal Apparatus is described for the pyrolysis of coal comprising a pyrolysis tower through which crushed coal and hot gas are counter-currently passed. The tower enables a controlled temperature profile to be maintained in the tower, and contains inner appurte... | 07/23/1991 |
| 5007987 | Method for producing needle coke The friability of green needle coke is reduced by heating the green needle coke to a temperature between about 875° F. and about 1,200° F. for a time sufficient to reduce the friability of the green needle coke.... | 04/16/1991 |
| 4935099 | Process for making wood charcoal Lump wood is carbonized in a shaft retort, which is flown through by hot rinse gas. The wood is charged to the retort at its top. Wood charcoal is withdrawn from the lower portion of the retort. An exhaust gas which contains gases and vapors produced by c... | 06/19/1990 |
| 4883499 | Process adapted to produce synthesis gas and activated carbon from organic input material An improved gasification system, in which synthesis gas is produced through the operation of a fuel gas production bed comprising an upper layer (66) of organic input material, typically in the form of pellets or briquettes of substantially uniform size a... | 11/28/1989 |
| 4867848 | Process and apparatus for producing moulded coke in a vertical furnace which is at least partly electrically heated An apparatus and process for producing coke in a vertical furnace having an upper part for preheating and devolitalizing raw ovoids of coal, an electrically heated median part for carbonizing and coking the ovoids and a lower part for partially cooling th... | 09/19/1989 |
| 4752359 | Method of producing active form coke Active form coke is made from coal by passing the coal granulate downwardly through a preheating and pyrolysis zone, a heating zone, an aftertreatment zone and a cooling zone by moving respective grate bars of grates in each zone so that a bed of granules... | 06/21/1988 |
| 4718984 | Apparatus for calcining coke An internally-fired vertical shaft kiln for calcining coke wherein a downwardly moving coke bed has a co-current preheat gas stream in the upper portion of the kiln and a counter-current combustion gas stream in the lower portion of the kiln. Both gases a... | 01/12/1988 |
| 4663145 | Device for an method of working up pickling and etching liquids A device for and method of working up etching and pickling liquids consisting of a vertical furnace having one or more vertical reaction spaces through which balls move at a maximum packing density. The furnace has a temperature gradient from the bottom (high)... | 05/05/1987 |
| 4652342 | Retorting process using an anti-bridging mechanical agitator A process for the destructive distillation of hydrocarbonaceous solids in a retort, wherein a viscous bridging zone comprising viscous liquids in intimate contact with solids, which tends to impede the flow of vaporized hydrocarbons and the flow of solid ... | 03/24/1987 |
| 4650546 | Method for the treatment of moist products Slugs (4) of products dehydrated by compression are thrust into the tube (11) up to the hearth (15). The hot gases from the hearth passing round the tube (11) heat it up in order to release the gases and carbonize the solids which burn in the form of coke... | 03/17/1987 |
| 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 |
| 4601811 | Process for oil shale retorting using gravity-driven solids flow and solid-solid heat exchange A cascading bed retorting process and apparatus in which cold raw crushed shale enters at the middle of a retort column into a mixer stage where it is rapidly mixed with hot recycled shale and thereby heated to pyrolysis temperature. The heated mixture th... | 07/22/1986 |
| 4599161 | Retorting process with contaminant removal Hydrogen sulfide issuing from an oil shale retort is captured in an absorbent bed. When the bed is regenerated as with oxygen containing gas, the sulfur dioxide liberated is reintroduced into the retort for reaction with the spent shale.... | 07/08/1986 |
| 4597852 | Static mixer retorting of oil shale Oil shale is well mixed and efficiently, effectively, and economically retorted in a special gravity flow retorting process and system which utilizes novel arrangements of internal baffles in a static mixer.... | 07/01/1986 |
| 4565138 | Thermal decomposition furnace of waste tires A thermal decomposition furnace in which waste tires having original shape, not broken up, can be laid horizontally and be thermally decomposed. The furnace is constructed by providing a feeder above, forming downward a fluidized bed-forming section havin... | 01/21/1986 |
| 4545859 | Method for producing needle coke A method is provided for producing needle coke comprising the steps of heating green needle coke at temperatures between about 935° F. and about 1,100° F. for between about 10 minutes and about 24 hours, cooling the coke to below about 250° F., and cal... | 10/08/1985 |
| 4534849 | Method for aboveground separation, vaporization and recovery of oil from oil shale An improved retort process in which oil is recovered from crushed oil shale moved by gravity through a passageway of an elongated housing with an inlet for the crushed oil shale at the top end and an outlet for the spent crushed oil shale at the bottom en... | 08/13/1985 |
| 4521278 | Method for producing needle coke A method is provided for producing needle coke comprising the steps of heating green needle coke at temperatures between about 875° F. and about 1,200° F. for between about 10 minutes and about 24 hours, and, without first allowing the temperature of th... | 06/04/1985 |
| 4502920 | Apparatus for aboveground separation, vaporization and recovery of oil from oil shale An improved retort apparatus for recovering oil from crushed oil shale moved by gravity through a passageway of an elongated housing includes a control assembly connected adjacent the outlet end of the housing to control the rate of movement of the crushe... | 03/05/1985 |
| 4452154 | Process and apparatus for dry distillation of discarded rubber tires Discarded rubber tires are charged in random state into a vertical dry distillation furnace, and the tires at a lower part thereof are caused to undergo combustion to give off hot combustion gases by which the tires at higher levels undergo dry distillati... | 06/05/1984 |
| 4439307 | Heating process gas for indirect shale oil retorting through the combustion of residual carbon in oil depleted shale Hot oil depleted shale from an indirect oil shale retorting process is charged into the top of a vertical shaft furnace together with sufficient oxygen to combust the residual carbon in the shale. Recycle process gas is fed into the bottom of the furnace ... | 03/27/1984 |
| 4436611 | Process for heating recycle gas in oil shale retorting Recycle gas for the indirect retorting of oil shale, is heated after the oil has been recovered from the gas, utilizing the residual carbon in hot oil depleted shale. The hot oil depleted shale is charged into a vertical shaft furnace where it is combuste... | 03/13/1984 |
| 4431483 | Apparatus for distilling shale oil from oil shale An apparatus for distilling shale oil from oil shale, which comprises: a vertical type distilling furnace which is divided by two vertical partitions each provided with a plurality of vent apertures into an oil shale treating chamber and two gas chambers,... | 02/14/1984 |
| 4419185 | 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... | 12/06/1983 |
| 4417528 | Coal gasification process and apparatus Coal devolatized and partially gasified in a travelling grate reactor is dropped into a shaft furnace to form a downwardly moving stack which moves then downwardly to and through a fixed bed gasifier, wherein it is burned to ash. A gas stream from the tra... | 11/29/1983 |
| 4409416 | Lignin cracking process using fast fluidized bed reactions A process for cracking lignin-containing feed materials, such as precipitated from black liquor, to produce hydrocarbon products such as ethylene, utilizing dual fluidized beds of particulate solids in series flow arrangement. In the process, the feedstoc... | 10/11/1983 |
| 4406744 | Process for the production of hydrogenated tar and distillates and low sulfur coke from coal The production of hydrogenated tar and distillates from coal which is passed through successive condensing, hydrogenation, desulfurization and cooling zones of a dense bed while a flue gas is discharged into the lower portion of the desulfurization zone i... | 09/27/1983 |
| 4404086 | Radial flow retorting process with trays and downcomers Solid heat carrier material and solid hydrocarbon-containing material, such as oil shale, tar sands or coal, are deflected be conical baffles into radially moving fluid beds which alternately flow radially outwardly and inwardly over a series of trays and... | 09/13/1983 |
| 4389283 | Method for making coke via induction heating An improved method and apparatus for making coke wherein the coal is heated by the walls of a multi-cell chamber means and wherein said walls are heated by electric induction in the absence of air; the raw gases from the coal are directed to a by-product ... | 06/21/1983 |
| 4388174 | Process of recovering oil from oil-containing minerals Oil-containing materials and part of the hot burnt material which is available after the combustion of solid carbon are charged into a retorting shaft reactor and the oil-containing mineral in the mixture is heated to the retorting temperature. For a proc... | 06/14/1983 |
| 4383912 | Processes of pyrolysis and treatment of pyrolysis residues The invention pertains to a process of pyrolysis of shale capable of producing hydrocarbons. It comprises associating at least two retorts and causing their respective operational phases to be so coordinated as to achieve simultaneous pyrolysis of said ma... | 05/17/1983 |
| 4357210 | Electric furnace for the calcination of carbonaceous materials The invention relates to an electric furnace for heating by passing a current through the charge, and more particularly, a continuous furnace in which the charge is a carbonaceous material. The furnace according to the invention is provided with a device for ... | 11/02/1982 |
| 4352720 | Process and apparatus for the production of molded metallurgical coke from coal briquettes The process for the production of molded metallurgical coke from dried coal or fine coal mixtures with a low swelling index particularly highly volatile fine coal comprises mixing normal washed fine coal or fine coal mixtures of a grain size of from 0 to ... | 10/05/1982 |
