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| Number | Title | Issue Date |
| 4261856 | Ammonia synthesis gas production Ammonia synthesis gas is prepared by contacting coal with air and steam in a fluidized bed. Heat for the reaction is provided by downward flowing hot char through the fluidized bed. The char is heated externally of the fluidized bed by combustion of fuel ... | 04/14/1981 |
| 4244180 | Process for producing fuel gases from carbonaceous material Disclosed is a process for converting crude carbon such as coal, carbonaceous wastes and the like into valuable chemical products and/or energy. A mass of solid crude carbonaceous fuel is fed into a high temperature liquid which acts as a solvent for carb... | 01/13/1981 |
| 4235605 | Synthesizing gas from coal via synergetic reactions with steam and sulfur Gasification by reaction of carbon (e.g., in coal) with sulfur in the presence of steam, at 500°-1500° K., and controlled to favor production of carbon monoxide/-dioxide and hydrogen sulfide (further reactable to hydrogen and sulfur, which can be recycl... | 11/25/1980 |
| 4220454 | Process for gasifying pelletized carbonaceous fuels A process is disclosed for gasifying pelletized coal to produce a low Btu gas containing large amounts of hydrogen and carbon monoxide. Advantageously, the process is carried out on a circular traveling grate machine on a continuous basis. A horizontally ... | 09/02/1980 |
| 4211540 | Process for the manufacture of fuel gas An improved process is disclosed for the production of fuel gas such as synthetic natural gas from coal. A sized coal feed of larger particle size is gasified in a moving bed gasifier such as the British Gas/Lurgi slagging gasifier, and forms a methane ri... | 07/08/1980 |
| 4202167 | Process for producing power An improved method for the generation of power in a combustion gas turbine utilizing fuel gas comprising hydrogen and carbon monoxide in which said fuel gas is subjected to a water gas shift reaction whereby said fuel gas is enriched in both hydrogen and ... | 05/13/1980 |
| 4199327 | Process for gasification of coal to maximize coal utilization and minimize quantity and ecological impact of waste products Coarse, graded coal is fed to a pressurized relatively fixed bed, non-slagging gasifier from which crude gas is recovered. Fine coal is slurried in an aqueous mixture comprising the discharge from the relatively fixed bed gasifier, which discharge is comp... | 04/22/1980 |
| 4191539 | Method for feeding caking coal particles to a gasifier An improved method for feeding caking coal particles to a fluidized bed gasifier, without prior pretreatment, is disclosed. The coal particles are entrained in a gaseous stream and injected directly into the bottom of the fluidized bed around the outer pe... | 03/04/1980 |
| 4185083 | Manufacture of finely divided carbon Finely divided carbon is manufactured by a process including producing a gaseous stream containing carbon monoxide by reacting coal and air in a slagging ash gasifier, separating carbon monoxide from the gaseous mixture, and disproportionating the carbon ... | 01/22/1980 |
| 4175929 | Process for control of pollutants generated during coal gasification The present invention is directed to an improvement in the coal gasification process that effectively eliminates substantially all of the environmental pollutants contained in the producer gas. The raw producer gas is passed through a two-stage water scru... | 11/27/1979 |
| 4168956 | Method of operating a coal gasifier A method of operating an entrained flow coal gasifier which comprises the steps of firing coal at two levels in a combustion zone with near stoichiometric air, removing molten ash from the combustion zone, conveying combustion products upwardly from the c... | 09/25/1979 |
| 4158552 | Entrained flow coal gasifier An entrained flow coal gasifier wherein a high temperature product gas stream is essentially formed by burning char with air. Additional char, formed by partial gasification of coal, is added immediately thereafter to obtain the gasification reaction. Fre... | 06/19/1979 |
| 4154582 | Method of solids discharge from coal gasifier grate A method is described for the discharge of solids from a coal gasifier grate at different radial locations.... | 05/15/1979 |
| 4146369 | Process for gas production from solid fuels A single reactor is used for gasifying solid fuels of a wide range of particle sizes without first comminuting the particles to a common size. The larger particles are gasified on a fixed bed, and the smaller ones are gasified on a fluidized bed. In the r... | 03/27/1979 |
| 4146359 | Method for reacting nongaseous material with a gaseous reactant This invention relates to a new and novel method and apparatus for reacting nongaseous material with a gaseous reactant comprising introducing a first stream containing a nongaseous material into a reaction zone; simultaneously introducing a second stream... | 03/27/1979 |
| 4050990 | Method and apparatus for producing form coke A method of producing form coke that is coke having pieces of substantially identical form using a heated shaft furnace comprises mixing fine coke with a caking coal and pressing the mixture at temperatures at which the mixture is plastic in order to form... | 09/27/1977 |
| 4049570 | Method and apparatus for removing vapors and aerosols from gases produced in a gasification plant The high temperature gasification of solid fuel or mixtures of solid and liquid fuels is carried out by a method and apparatus wherein the gasified product from a high temperature gasification chamber having a slag bath therein is fed into a first dust co... | 09/20/1977 |
| 4028068 | Process and apparatus for the production of combustible gas A process for the production of combustible gas from waste materials and other combustible materials, in which the charge is dried, its combustible parts are subjected to low-temperature carbonization and the low-temperature carbonization gases are conver... | 06/07/1977 |
| 4017271 | Process for production of synthesis gas A process for the production of a synthesis gas, capable of being upgraded to a high BTU pipeline gas, by the partial oxidation and substantially complete gasification of a carbonaceous material under CO-promoting conditions wherein the carbonaceous mater... | 04/12/1977 |
| 3991557 | Process for converting high sulfur coal to low sulfur power plant fuel Pulverized coal having a sulfur content of up to 2.5% is introduced into a gasification vessel together with air preheated to a temperature above 900° F. The pulverized coal and preheated air react in the gasification vessel which is operated at temperat... | 11/16/1976 |
| 3983030 | Combination process for residua demetalation, desulfurization and resulting coke gasification A combination process is provided for residua demetalation and desulfurization and resulting coke gasification which comprises contacting said residua with a porous refractory oxide in the absence of added hydrogen, at a temperature of from greater than 7... | 09/28/1976 |
| 3981690 | Agglomerating combustor-gasifier method and apparatus for coal gasification A method and apparatus for gasifying coal wherein the gasification takes place in a spout fluid bed at a pressure of about 10 to 30 atmospheres and a temperature of about 1800° to 2200°F and wherein the configuration of the apparatus and the manner of i... | 09/21/1976 |
| 3977844 | Process for producing a sulfur free combustible gas A process for producing hot combustible gas free of sulfur, halogens and particulate matter. The process comprises passing oxygen, steam and/or carbon dioxide through a reaction zone containing an alkali or alkaline earth metal oxide, hydroxide, bicarbona... | 08/31/1976 |
| 3976442 | Synthesis gas from gaseous CO2 -solid carbonaceous fuel feeds This is an improved continuous partial oxidation process for producing synthesis gas or fuel gas from gaseous CO2 -solid carbonaceous fuel feeds. A solid carbonaceous fuel such as finely ground coal from a pressurized lock hopper is passed dire... | 08/24/1976 |
| 3976443 | Synthesis gas from solid carbonaceous fuel This is an improved continuous partial oxidation process for producing synthesis gas or fuel gas from a solid carbonaceous fuel. Liquid CO2 and a ground solid carbonaceous fuel such as coal are mixed together to produce a pumpable slurry feed. ... | 08/24/1976 |
| 3969089 | Manufacture of combustible gases Substantially sulfur-free combustible fuel gas under superatmospheric pressure is produced by partial combustion or gasification under superatmospheric pressure of a sulfur-containing solid, liquid or gaseous fuel. The gasification is effected within a fl... | 07/13/1976 |
| 3958956 | Methane production process and arrangement therefor The gaseous product obtained by the partial oxidation of a fuel such as coal and/or oil is desulfurized and then admitted into a packed gas-liquid contact column. Here, the gas comes into contact with water so as to become at least partially saturated wit... | 05/25/1976 |
| 3957458 | Gasifying coal or coke and discharging slag frit Granulated coals or cokes derived from coal, in sizes up to about 3/4 inch and containing ash matter with an initial deformation temperature below about 2,300°F, are fed to a slow fluidized bed comprising relatively large particles of coke intermingled w... | 05/18/1976 |
| 3957457 | Gasifying coal or coke and discharging ash agglomerates Granulated coals or cokes derived from coal, in sizes up to about 3/4 inch and containing ash matter with an initial deformation temperature above about 2,300°F, are fed to a slow fluidized bed comprising relatively large particles of coke intermingled w... | 05/18/1976 |
