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| Number | Title | Issue Date |
| 4724130 | Recovery of promoters used in flue gas desulfurization In flue gas desulfurization, sorbent promoters are recovered by mixing collected particulates with water to form a slurry. The slurry is dewatered and wet solids are disposed. The recovered material contains water soluble desulfurization promoters and is ... | 02/09/1988 |
| 4720290 | Reduction of liquid atomizer droplet size The dispersing ability of atomizing nozzles is improved by dissolving a portion of the dispersion gas into the subject liquid at pressures of at least 50 psi. Explosive expansion of the dissolved gas in the nozzle greatly aids atomization. Further atomiza... | 01/19/1988 |
| 4708395 | Remotely sensing of excavation cavity during mining Method and apparatus for hydraulically mining a location using a hydraulic monitor which has horizontal and vertical positionable control apparatus. The hydraulic monitor is connected to a source of high pressure water. Distance and direction measuring eq... | 11/24/1987 |
| 4693321 | Method using encapsulated flow improvers to reduce turbulence Polymeric flow improvers, whether alone or partially dissolved in a solvent, are encapsulated to provide a free flowing particulate powder which can be easily transported and subsequently placed into hydrocarbons wherein the outer shelf of the encapsules ... | 09/15/1987 |
| 4676810 | Revolving separator Slurries containing solid liquids and gases are continuously separated into individual components utilizing a revolving vanes on an eccentric axis. The vanes are of a flexible material which revolve sufficiently slowly that in sequence gas escapes through... | 06/30/1987 |
| 4670238 | Recycled sorbent flue gas desulfurization An improved process for reducing the sulfur content of a flue gas derived from combination of a sulfur-containing fuel by inserting a dry sulfur sorbent material into the flue gas, then humidifying the sorbent-containing flue gas to enhance sulfur removal... | 06/02/1987 |
| 4649034 | Catalyzed flue gas desulfurization Flue gas resulting from combustion of sulfur-containing fuel is treated for reduction of its sulfur dioxide content by creating in it a suspension of finely divided sorbent such as lime, and then contacting it at elevated temperature in a vertical contact... | 03/10/1987 |
| 4615871 | Flue gas desulfurization process An aqueous solution of an alkaline earth salt of a low molecular weight carboxylic acid, such as calcium formate, is sprayed into a sulfur dioxide containing flue gas upstream of a solids particulate separator in amount sufficient to produce a flue gas te... | 10/07/1986 |
| 4613487 | Flue gas desulfurization process Flue gas is desulfurized by mixing into the combustion zone a finely divided sorbent such as calcium carbonate and, downstream of the mixing point, reactivating the sorbent by spraying the gaseous suspension with an aqueous solution of solubilizing agent ... | 09/23/1986 |
| 4609536 | Method for producing reactive lime and reducing sulfur dioxide Limestone is calcined by being suspended in hot gas produced by combustion of a low-carbon fuel to produce a quicklime of high surface area, which in one embodiment is used for flue gas desulfurization.... | 09/02/1986 |
| 4604269 | Flue gas desulfurization process Flue gas is desulfurized by mixing into it at a temperature between about 120° and about 230° C. a finely divided sorbent such as calcium hydroxide which has been reacted with an aqueous solution of solubilizing agent such as a deliquescent compound or ... | 08/05/1986 |
| 4603037 | Desulfurization of flue gas from multiple boilers Flue gases from two or more boilers are treated for reduction of their sulfur dioxide content by injecting as sorbent fine limestone or dolomite into one of the boilers, recovering a mixture of spent and calcined sorbent from the resulting flue gas, hydra... | 07/29/1986 |
| 4600569 | Flue gas desulfurization process An aqueous solution of an alkaline earth salt of a low molecular weight carboxylic acid, such as calcium formate, is sprayed into a sulfur dioxide containing flue gas upstream of a solids particulate separator in amount sufficient to produce a flue gas te... | 07/15/1986 |
| 4600568 | Flue gas desulfurization process Flue gas is desulfurized by mixing into it at a temperature between about 120° and about 230° C. a finely divided sorbent such as calcium hydroxide and, immediately downstream of the mixing point, spraying the gaseous suspension with an aqueous solution... | 07/15/1986 |
| 4597067 | Borehole monitoring device and method A method and device for sensing hole parameters while drilling a borehole, and transmitting the sensed data to a remote receiver. Data are transmitted in digital format as a series of audible binary pulses generated by a solenoid acoustically coupled to t... | 06/24/1986 |
| 4578175 | Combined process for coal pyrolysis and char gasification Finely divided coal is reacted in a combination of processes comprising flash pyrolysis and fluidized bed gasification of char from the pyrolysis. A portion of the char which is heated by the steam-oxygen gasification provides the heat for the pyrolysis s... | 03/25/1986 |
| 4565678 | Method of reducing sulfur oxide and nitrogen oxide content of flue gas Flue gas is treated by a regenerable wet scrubbing process to reduce sulfur- and nitrogen oxides by reacting with a solution containing ammonium thiosulfate and hydroxide, and a ferrous chelating agent. A portion of the spent scrubber solution is regenera... | 01/21/1986 |
| 4559134 | Control of froth flotation separation In a froth flotation beneficiation, the rate of addition of collector reagent is varied in response to the change in particle size effected by the beneficiation, as determined by comparing a size analysis of solid particles in one of the separated streams... | 12/17/1985 |
| 4552651 | Control of froth cell performance through the use of differential bubbler tubes A method of controlling the separation of coal from a mixture of coal and refuse in a froth flotation device by measuring the differential back pressure between two gas bubbler tubes immersed to different depths into the body of pulp in the device to prod... | 11/12/1985 |
| 4534772 | Process of ether synthesis A method for producing fuel comprised of gasoline rich in methanol and methyl ethers derived from coal, which process comprises gasifying the coal to produce carbon monoxide and hydrogen, steam shifting the gasification product to produce additional hydro... | 08/13/1985 |
| 4499864 | Hydride cold start container in fuel treatment and distribution apparatus and method In a method of producing fuel for start-up to an automobile internal combustion engine which is continuously operated after start-up on alcohol and/or dissociated alcohol and/or liquid hydrocarbon the improvement comprising the steps of: (a) providing a readil... | 02/19/1985 |
| 4488517 | Cold start method with start-up gaseous fuel generation system for methanol fueled cars A method of cold starting an internal combustion engine operated on atomized liquid fuel after start up comprising the steps of: heating a vaporization means with an electrical resistance heating element, heating a catalytic dissociation reactor with an electrical ... | 12/18/1984 |
| 4476818 | Constant air feed alcohol dissociation process for automobiles A method of fuel treatment and distribution for an internal combustion engine including the sequence of steps as follows: (a) heating a catalyst bed reactor to a start-up temperature using exhaust gas from an internal combustion engine being operated on atomiz... | 10/16/1984 |
| 4444158 | Alcohol dissociation process for automobiles A method of methyl alcohol treatment and distribution for an automobile internal combustion engine including the sequence of steps as follows: (a) heating a catalyst bed reactor to a start-up temperature using exhaust gas from an internal combustion engine bei... | 04/24/1984 |
| 4441461 | Alcohol dissociation and waste heat recovery process for automobiles A method of fuel treatment and distribution for an automobile internal combustion engine comprising the steps as follows: (a) vaporizing liquid alcohol to form alcohol vapor; (b) providing a substantial amount of engine exhaust heat to an endothermic reactor h... | 04/10/1984 |
| 4440546 | Process for gasification of carbonaceous material A process of tar destruction in gasification of carbonaceous material comprising providing a mixture of finely divided calcium compound of a particle size smaller than 65 mesh and finely divided carbonaceous material of a particle size smaller than 65 mes... | 04/03/1984 |
| 4440543 | Method for stabilizing a slurry of finely divided particulate solids in a liquid A method for stabilizing a slurry of finely divided particulate solids in a liquid, the method consisting essentially of dispersing from about 1 to about 10 weight percent, based on the particulate solids, finely divided wood particles in the slurry, ther... | 04/03/1984 |
| 4439304 | Process for beneficiating high sulfur, high fluidity coal A method of forming a liquefied coal product having a lower sulfur percent by weight than the solid coal from which it is derived comprising the steps as follows: (a) providing solid coal having a sulfur percent by weight of a particle size less than abou... | 03/27/1984 |
| 4439210 | Method of catalytic gasification with increased ash fusion temperature A high ash fusion catalyzed gasification process comprising providing a mixture of 50 to 90 weight percent finely divided carbonaceous material particles of a size smaller than 65 mesh and 10 to 50 weight percent finely divided calcium compound particles ... | 03/27/1984 |
| 4437982 | Separation of clay from coal A method of separating fine coal particles from refuse particles comprising the step of: (a) providing a coal filter cake (b) forming a slurry of fine coal particles, refuse particles in a liquid mixture comprising water and organic liquid, (c) contacting said... | 03/20/1984 |
| 4429471 | Fluidized bed air distributor Fluidized bed apparatus comprising a fluidized chamber having a grid plate below said chamber, a feed gas channel below said grid plate, and a fluidized bed gas distributor, said fluidized bed gas distributor comprising a nipple, a cap, and a bushing, whe... | 02/07/1984 |
| 4430444 | Method of making methanol using a slagging gasifier A process for producing methanol from solid carbonaceous material comprising providing a gasifier means and a methanol formation means connected to said gasifier means, said gasifier means comprising a gasification chamber defined by a gasification chambe... | 02/07/1984 |
| 4425876 | Alcohol dissociation and waste heat recovery process for automobiles A method of fuel treatment and distribution for an internal combustion engine including the steps as follows: (a) operating an adiabatic reactor without a substantial amount of exhaust heat within an operational temperature range, the catalyst bed reactor ... | 01/17/1984 |
| 4424771 | Hydride cold starter in alcohol fuel treatment and distribution apparatus and method An apparatus and method for starting an internal combustion engine comprising the sequence of steps as follows: (a) providing a hydride reactor means, vaporizing means, dissociation reactor means and liquid alcohol said hydride reactor means comprising hy... | 01/10/1984 |
| 4424111 | Regeneration of ZnC12 A method of hydrocracking using a zinc catalyst in the hydrogenation step comprising providing a hydrocarbonaceous feed of coal or tar to a hydrogenation means, removing spent zinc and catalyst from said hydrogenation means to a regeneration means, heatin... | 01/03/1984 |
| 4422342 | Temporary vanes to straighten gas flow in scrubbers A method is provided for flow straightening and sampling gas in the stack of a gas scrubber. In normal operation the gas has a substantially nonaxial flow so as to retain within the stack droplets carried by the gas. A flow straightener having flow straig... | 12/27/1983 |
| 4418653 | Alcohol fuel dual-catalyst treatment apparatus and method Internal combustion engine fuel treatment including in sequence the steps as follows: providing a dual catalyst reactor having a dehydration catalyst and dissociation catalyst providing alcohol, vaporing the alcohol to form alcohol vapor, dehydrating a portion... | 12/06/1983 |
| 4418044 | Nitric oxide and sulfur oxide absorption by scrubbing with Fe++ /S.sub. O3- A method of scrubbing a gaseous mixture comprising NO and SO2 said method comprising providing a scrubbing solution, said scrubbing solution comprising a solvent and a solute wherein said solute comprises Fe++ and S2 O | 11/29/1983 |
| 4416424 | Method and apparatus for deashing coal liquefaction effluents An improved method and apparatus for deashing an effluent slurry from a coal liquefaction process is provided. A mixture of relatively coarse coal-derived solids and a precipitating solvent is stirred with the effluent slurry to form hard, discrete agglom... | 11/22/1983 |
| 4415341 | Gas, liquid contactor A method of contacting gas and liquid at pressures greater than 200 psig comprising: providing container means, said container means being provided with a plurality of conduit means and a plurality of gas inlet means, at least a portion of said gas inlet ... | 11/15/1983 |
