Class 48/99 - Coal and water

Subclass of Class 48 - Gas: heating and illuminating
Definition: Combined retorts for the gasification of coal and means
No. of patents: 25
Last issue date: 12/04/2007

Number	Title	Issue Date
7302897	MSW disposal process and apparatus using gasification A system for disposing of municipal solid waste provides commercially-available equipment that is modified to initially remove identifiable unwanted components from the waste, and then chop the waste into small pieces of a size suitable for handling, separation and ...	12/04/2007
7147681	Method and device for removing recoverable waste products and non-recoverable waste products Method and apparatus used in the field of waste management for utilizing recoverable waste products as efficiently as possible. The invention reduces the environmental impact of such a method to a minimum. The recoverable waste products and non-recoverable waste pro...	12/12/2006
7087097	Facility for the gasification of carbon-containing feed materials A pressure-supercharged fluidized-bed gasification chamber has a pressure-tight lock for supplying the feed materials which are to be gasified. The fluidized-bed gasification chamber is connected to a filter chamber via a connecting channel, with the result that the...	08/08/2006
6997965	Method for the gasification of coal A method of the gasification of coal using oxygen and steam is provided wherein the coal is gasified at a temperature of from 1000 to 2500° C. and a pressure of from 1 to 100 kg/cm2 using oxygen generated by electrolyzing water and steam having a tempera...	02/14/2006
6911057	Apparatus for converting coal into fuel cell quality hydrogen and sequestration-ready carbon dioxide An apparatus for burning coal to produce substantially pure hydrogen for use in fuel cells, together with “sequestration ready” carbon dioxide and a stream of oxygen depleted air for powering gas turbines. The apparatus includes two fluidized bed reactors and a ...	06/28/2005
6827751	Thermodynamic accelerator/gasifier An apparatus which is capable of supporting a process for gasifying a variety of hydrocarbon-containing materials. The resulting hydrogen-containing gas is suitable for use in various combustion processes and for petrochemical processes. A hydrocarbon-containing mat...	12/07/2004
5855631	Catalytic gasification process and system A catalytic gasification process and system for producing medium grade BTU gas including a gasification reactor having an inner air gasification zone, an outer steam gasification zone, a synthetic coal reaction zone, and an upper lime treating zone. The p...	01/05/1999
5776212	Catalytic gasification system A catalytic gasification system for producing medium grade BTU gas including a gasification reactor having an inner air gasification zone, an outer steam gasification zone, a synthetic coal reaction zone, and an upper lime treating zone. The system of the...	07/07/1998
5439491	Fluidized bed generator for allothermic gasification of coal Apparatus is disclosed for the allothermic gasification of coal with steam. The gasifier is horizontally arranged with heat exchange tubes in separate gasification and pyrolysis zones so that a heat exchange medium is used in both zones....	08/08/1995
5370715	Waste destructor and method of converting wastes to fluid fuel Organic wastes of diverse types including toxic materials are converted to synthesis gas or molecular hydrogen or methanol and an inorganic solid residue by heating the material to 1200 ° C. or higher in the presence of steam in a chemically reducing atm...	12/06/1994
4756722	Device for gasifying coal Part of the synthesis gas produced by coal gasification in an allothermically heated fluidized bed reactor is burned after removal of dust and sulfur and serves as a source of energy to heat the reactor by indirect heat exchange and to produce the steam r...	07/12/1988
4448588	Integrated gasification apparatus An integrated apparatus for the gasification of coal alone or with other carbon-containing materials such as solid municipal wastes, biomass and sewage sludges, wherein the endothermic heat required by the gasification reaction is supplied at least in a s...	05/15/1984
4304574	Heating system for fluidized bed gas generator The retort chamber for generating gas by applying hot steam to coal in a fluidized bed is heated by meandering tubes, dipping into the bed, and being suspended from long, hollow boxes which, in turn, are particularly suspended in the retort chamber. The b...	12/08/1981
4290779	Solar heated fluidized bed gasification system A solar-powered fluidized bed gasification system for gasifying carbonaceous material. The system includes a solar gasifier (10) which is heated by fluidizing gas and steam. Energy to heat the gas and steam is supplied by a high heat capacity refractory h...	09/22/1981
4212652	Apparatus and system for producing coal gas Apparatus and system for producing high pressure gas, such as high pressure coal gas from coal, air and water. Pulverized coal is introduced into a rising stream of steam in a central reaction column of a retort to constitute a fluidized or entrained bed....	07/15/1980
4203731	Radiant energy gasification apparatus A gas making retort includes a substantially upright mixing chamber opening into a first horizontal refractory cylinder which encloses a second horizontal refractory cylinder. The second cylinder encloses two centrally positioned refractory circular gas o...	05/20/1980
4153427	Apparatus and method for feeding coal into a coal gasifier This invention is directed to a system for feeding coal into a gasifier operating at high pressures. A coal-water slurry is pumped to the desired pressure and then the coal is "dried" prior to feeding the coal into the gasifier by contacting the slurry wi...	05/08/1979
4137052	Apparatus and system for producing coal gas Apparatus and system for producing coal gas from coal, air and water. Pulverized coal is introduced into a rising stream of air and steam in a retort to constitute a fluidized or entrained bed. The coal reacts with the steam and air to form a gas consisti...	01/30/1979
4135885	Burning and desulfurizing coal A chemical reactor with a first upstream fluid bed which primarily burns coal and a second downstream fluid bed which primarily desulfurizes....	01/23/1979
4101295	Apparatus for converting coal into gas substitutes Apparatus for converting coal into a gas substitute in which a slurry mix of pulverized coal and water is heated to form an emulsion which is then successively passed through a catalytic chamber and a convertor chamber. The catalyzed emulsion mix is heated to ...	07/18/1978
4080181	Gas generator A gas generator is provided for the production of gas from fuel and steam under conditions of high pressure and temperature. The requisite temperature is preferably provided by a nuclear reactor. The gas generator includes a cylinder wth a hollow interior...	03/21/1978
4062656	Fluidized bed apparatus A fluidized bed apparatus having an outer vessel provided at a lower region with a plenum chamber as well as a grid situated directly above the plenum chamber and carrying a plurality of nozzles through which gas flows from the plenum chamber into the spa...	12/13/1977
4032305	Treating carbonaceous matter with hot steam The relatively small degree of backmixing of gas in a well-arranged fast fluidized bed is exploited to introduce heat into a fluidized bed reaction system wherein a fluidized bed treatment zone receiving heat and for the purpose of conducting an endotherm...	06/28/1977
4029481	Self powered blue water gas generator A self powered blue water gas generator includes a sealed retort forming a vertical column and having an input air lock coupled to receive carbonaceous material and a lower output air lock. The column includes a grate positioned within the column and disp...	06/14/1977
3971639	Fluid bed coal gasification A process and apparatus for gasifying coal to produce carbon monoxide and hydrogen in which a first stream of coal is burned without bed formation in a combustion zone in the presence of water under oxidation conditions to produce gases containing carbon ...	07/27/1976

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Class 48/99 - Coal and water