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| Number | Title | Issue Date |
| 7232472 | Method for the treatment of coal A method and apparatus for the treatment of coal to form a product gas such as methane (CH4), and a high purity carbon product. The method includes contacting a coal-containing feedstock with a treatment gas that includes hydrogen. The coal feedstock can ... | 06/19/2007 |
| 6971336 | Super low NO, high efficiency, compact firetube boiler A firetube boiler furnace having two combustion sections and an in-line intermediate tubular heat transfer section between the two combustion sections and integral to the pressure vessel. This design provides a staged oxidant combustion apparatus with separate in-li... | 12/06/2005 |
| 6394043 | Oxygen separation and combustion apparatus and method An oxygen separation and combustion apparatus such as a boiler or a nitrogen generator in which a plurality of fluid passages and oxygen transport membranes are located within a combustion chamber. The oxygen transport membranes separate oxygen from an ox... | 05/28/2002 |
| 5968320 | Non-recovery coke oven gas combustion system A system for transporting and burning under negative pressure in a boiler a raw coke oven gas to produce steam energy. The system has the usual battery of coke ovens and corresponding ascension pipes connected to a collector main. Flushing liquor is spray... | 10/19/1999 |
| 5596953 | Gas boiler Disclosed is a gas boiler which has a simple structure, which is easy to be installed, and which is manufactured at a low cost. The typical water tank is partitioned into an upper casing and a lower casing which are capable of communicated with each other... | 01/28/1997 |
| 5455014 | Liquid deposition source gas delivery system A liquid deposition source delivery system (22) includes a reactant source (50) of a liquid chemical reactant, a first heater (54) positioned adjacent to the reactant source (50) , and a vapor collection system (56) in communication with the reactant sour... | 10/03/1995 |
| 5279260 | Water fuelled boiler A water to fuel electrolysis system for providing hydrogen and oxygen gases to a steam boiler for the production of heat and steam.... | 01/18/1994 |
| 4851013 | Gasification process A process for monitoring the conditions in the reaction zone of a gasifier in a process for the gasification of coal to produce synthesis gas is disclosed, the process being characterized by continual or periodic calculation of the rate of steam productio... | 07/25/1989 |
| 4655793 | Method for operating a coal gasifier In a method for safely operating a coal gasifier which is indirectly cooled by passing a heat-carrying oil through a cooling jacket of the gasifier, the pressure of the heat-carrying oil is continually measured after having passed through the cooling jack... | 04/07/1987 |
| 4649867 | Coal gasification reactor of the type employing a bath of liquid metal This reactor for the gasification of solid fuels in the powdered form, of the type employing a bath of liquid metal (5) comprises: a substantially cylindrical vessel (1) which has a substantially oblong section and lateral walls (2) and a bottom wall (3) ... | 03/17/1987 |
| 4608058 | Steam supply system for superposed turine and process chamber, such as coal gasification A steam supply system is provided for use in conjunction with both a superposed turbine driven by a steam boiler and a process chamber. The steam boiler operates at a pressure above that needed for consumption in the process chamber and uses highly purifi... | 08/26/1986 |
| 4574744 | Waste heat boiler system, and method of generating superheated high pressure steam A waste heat boiler system includes a vertically elongated waste heat boiler having an upper portion with a waste gas inlet and a lower portion with an exhaust line connection which in addition to its vapor generating tubes includes evaporator tube nests ... | 03/11/1986 |
| 4569680 | Gasifier with economizer gas exit temperature control A gasifier (10) having an associated boiler (26, 32, 42, 48), for converting coal to combustible gas, and also having a desulfurizer (20) downstream of the gasifier. In order to maintain the gas leaving the gasifier and flowing to the desulfurizer above a... | 02/11/1986 |
| 4555993 | Water gas furnace A water gas furnace comprising an outer container to provide a housing in which coke is placed into its lower part. A water container is placed within the housing. The coke is ignited and heats the water in the container converting it into steam. The stea... | 12/03/1985 |
| 4509463 | Upright apparatus for cooling high pressure gases containing a high dust content An upright apparatus for cooling high pressure gases with a high dust component includes a radiation/convection cooler with longitudinally extending heat exchanger elements and a convection cooler follows the radiation/convection cooler on the gas side. A... | 04/09/1985 |
| 4493291 | Gas cooler arrangement The gas cooler arrangement includes a first pressure vessel in which heat is yielded by radiation and a following convection gas cooler. The pressure vessel of the convection gas cooler includes a faller flue and at least one riser flue for cooling the ga... | 01/15/1985 |
| 4481014 | Arrangement for producing gaseous products An arrangement for producing gaseous products from solid and liquid, ash-containing fuels and mixtures thereof in an air stream in a reactor. The fuels are introduced into the reactor parallel to the axis thereof. The solid and liquid ash constituents are... | 11/06/1984 |
| 4437864 | Plant with a reactor container, particularly for the gasification of fossil fuels A plant for the gasification of fossil fuels which includes a reactor container and a further plant component attachable to the reactor container. The reactor container has a discharge opening and includes a connection part extending outwardly from the di... | 03/20/1984 |
| 4430094 | Vapor generating system having a plurality of integrally formed gasifiers extending to one side of an upright wall of the generator A vapor generating system in which a furnace section is provided that is formed by four upright walls. A plurality of openings are formed in one of the walls, and a plurality of gasifiers extend adjacent said one wall and surround the openings so that the... | 02/07/1984 |
| 4423702 | Method for desulfurization, denitrifaction, and oxidation of carbonaceous fuels A method for desulfurization, denitrification, and oxidation, of carbonaceous fuels including a two stage oxidation technique. The carbonaceous fuel, containing ash, along with an oxygen-containing gas is introduced into a first stage partial oxidation un... | 01/03/1984 |
| 4395975 | Method for desulfurization and oxidation of carbonaceous fuels A method for desulfurization and oxidation of carbonaceous fuels including a two stage oxidation technique. The carbonaceous fuel, along with an oxygen-containing gas is introduced into a first stage partial oxidation unit containing molten slag maintaine... | 08/02/1983 |
| 4395268 | Hot gas cooler for a coal gasification plant The hot gas cooler comprises a vertical cylindrical pressure vessel and, disposed axially thereof, an insert which is closed over its periphery and embodied by sealingly welded-together tubes. The tubes are part of the heated pressure system of a vapor ge... | 07/26/1983 |
| 4377394 | Apparatus for the production of cleaned and cooled synthesis gas An apparatus in which a downflowing high pressure stream of hot raw synthesis gas from the reaction zone of a free flow partial oxidation gas generator at a temperature in the range of about 1800° to 3000° F. is passed through a first gas diversion and ... | 03/22/1983 |
| 4343626 | Reactor for producing a carbon monoxide and hydrogen containing gas The reactor for the production of CO and H2 containing gases by means of a partial oxidation of powdery or liquid high ash fuels in a carburation fluid including free oxygen, at high temperatures and increased pressure, includes a pressure vess... | 08/10/1982 |
| 4334892 | Gas producer apparatus including a water jacket A water jacket for coal gasification in which the gas producer is provided with an inwardly directed collar spaced from the water jacket and a plurality of apertures through the collar formation such that the collar can assist in supporting the refractory... | 06/15/1982 |
| 4328007 | Apparatus for gasification of fine-grain coal An arrangement for pressure gasification of fine-grain coal in which the exit of a reactor is followed by a waste heat boiler for cooling the generated gas. The waste heat boiler has a radiation section and downstream heat exchanger surfaces. The reactor ... | 05/04/1982 |
| 4328006 | Apparatus for the production of cleaned and cooled synthesis gas An apparatus in which the hot raw synthesis gas stream leaving the reaction zone of a free flow partial oxidation gas generator at a temperature in the range of about 1800° to 3000° F. is passed through a first gas diversion and residue separation zone ... | 05/04/1982 |
| 4305732 | Gasification apparatus with pressure relieving means The reactor for producing gas from powdery fuels comprises an outer metal sheet jacket, an inner pressure resistant jacket defining with the outer jacekt a first interspace for a cooling liquid, reinforcing brick lining adjoining the inner wall of the inn... | 12/15/1981 |
| 4289502 | Apparatus for the production of cleaned and cooled synthesis gas The hot raw synthesis gas stream leaving the reaction zone of a free flow partial oxidation gas generator at a temperature in the range of about 1800° to 3000° F. is passed through a first gas diversion and residue separation zone where the velocity of ... | 09/15/1981 |
| 4274341 | Coal gasifying burner with rotating grill A coal gasifying burner characterized by a rotating grill which is composed of grill disks arranged on two pipes with a narrow gap between the grills and which rotates very slowly inwards when viewed from the top sloped side walls made of metal sheet havi... | 06/23/1981 |
| 4272255 | Apparatus for gasification of carbonaceous solids The apparatus of U.S. Pat. No. 3,988,123 is improved by constructing the heat recovery stage as a relatively elongated water-wall type of heat exchanger within a pressure shell, rather than of shell and tube type. The heat exchanger is advantageously form... | 06/09/1981 |
| 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 |
| 4198212 | Coal gasification effluent treatment Coal is gasified to produce a coal gasification effluent and a char residue. The char residue is cooled by indirect heat transfer in a char bed, and the coal gasification effluent is passed through the cool char bed to effect cooling of the coal gasificat... | 04/15/1980 |
| 4172431 | Industrial boilers An industrial boiler comprising a combustion chamber having a furnace therein, means for feeding products of combustion from the combustion chamber to a heat exchanger to heat water/stream therein, a pyrolytic retort, means to feed said products of combus... | 10/30/1979 |
| 4147134 | Boiler having a hot gas generator for burning liquid or gaseous fuels A boiler having a hot gas generator for burning liquid or gaseous fuels. The hot gas generator comprises a combustion chamber unit, into the combustion chamber of which the fuel and air for combustion are introduced and in which the combustion of the fuel... | 04/03/1979 |
| 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 |
| 4098324 | Water-cooled, high-temperature gasifier and method for its operation A system for cooling high-temperature gasifiers and method for its operation wherein cooling conduits extend vertically through the walls of the gasifier and are connected at their ends to a closed-water circulation system which incorporates heat exchange... | 07/04/1978 |
| 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 |
| 4057402 | Coal pretreatment and gasification process A process for converting a finely divided carbonaceous material, particularly coal, to a fuel gas. A finely divided or pulverized carbonaceous feed material, such as coal, is pretreated at a temperature of about 700° - 800° F in order to destroy the cak... | 11/08/1977 |
| 3988123 | Gasification of carbonaceous solids A process and apparatus for converting coal and other carbonaceous solids to an intermediate heating value fuel gas or to a synthesis gas. A stream of entrained pulverized coal is fed into the combustion stage of a three-stage gasifier along with a mixtur... | 10/26/1976 |
