| Patent Number |
Title Of Patent |
Date Issued |
| 5165916 |
Method for producing carbide products |
November 24, 1992 |
| A method is provided for producing a carbide compound, such as silicon carbide. A reactor is provided which has a chamber defined therein which is divided into a combustion zone and a reaction zone. A combustible mixture comprising carbon monoxide and an oxidant is injected into the |
| 4859426 |
Apparatus for producing carbon black |
August 22, 1989 |
| In the production of carbon black, low BTU content gases are combusted in a compact combustion zone with near stoichiometric amounts of oxidant gases, tempered to the desired temperature and volume with a diluent gas stream which can be selected from air and filter off-gases, and introdu |
| 4729885 |
High mixing reactor process |
March 8, 1988 |
| The moving of adjacent axial stream at sufficiently different speeds to create turbulence and rapid mixing of feedstock and hot gases in a carbon black reactor is utilized to provide a high surface area carbon black. |
| 4704333 |
Pitch conversion |
November 3, 1987 |
| Pitch is converted to mesophase pitch in the presence of catalytically effective amounts of oxides, diketones, carboxylates and carbonyls of metals selected from vanadium, chromium, molybdenum, iron, nickel and cobalt. The crystalloidal or mesophase pitch obtained can be used for the |
| 4629615 |
Counter-rotational flow in a carbon black reactor |
December 16, 1986 |
| A method for producing carbon black employing a carbon black reactor which comprisesa cylindrical precombustion zone;a combustion gas introduction means adapted to tangentially introduce combustion gas into the cylindrical precombustion zone; anda cylindrical reaction zone in open communicat |
| 4600496 |
Pitch conversion |
July 15, 1986 |
| Pitch is converted to mesophase pitch in the presence of catalytically effective amounts of oxides, diketones, carboxylates and carbonyls of metals selected from vanadium, chromium, molybdenum, iron, nickel and cobalt. The crystalloidal or mesophase pitch obtained can be used for the |
| 4590039 |
Auto-preseparation of carbon black |
May 20, 1986 |
| Aerosols such as a carbon black containing smoke are subjected to an auto-preseparation by passing the aerosol or smoke through loose particles collected and accumulated and only thereafter passing the aerosol or smoke through a separator such as a filter bag. This changes the characteri |
| 4554149 |
Method for producing carbon black |
November 19, 1985 |
| The tint residual of carbon black being produced in an oil furnace charging oxygen-enriched air falls as oxygen enrichment increases. An apparatus for conducting the process utilizing a low BTU fuel with external tangential combustors is also disclosed. |
| 4550013 |
Decreasing carbon black reactor fouling rate |
October 29, 1985 |
| Feed oils are injected axially into a carbon black reactor in a manner which slows buildup of deposits in the reactor. This is accomplished utilizing a nozzle configuration for injecting the feed oil into the carbon black reactor so that deposit-forming contaminants are directed away |
| 4524725 |
Self-cleaning heat exchanger |
June 25, 1985 |
| A novel heat exchanger for recuperating heat from a combustion gas stream is disclosed. The heat is recuperated in a steam generator formed from a shell and tube heat exchanger. To reduce deposits on the combustion gas side of the heat exchanger the tube walls are porous so that the pres |
| 4503027 |
Method of producing carbon black |
March 5, 1985 |
| The tint residual of produced carbon black appears to go through a maximum value at a toluene photelometer of between about 65 and about 75. A process is disclosed for maximizing the tint residual of carbon black product at constant reactor volume and combustion gas flow by measuring |
| 4501720 |
Counter-rotational flow in a carbon black reactor |
February 26, 1985 |
| A counter-rotational flow of combustion gas within a carbon black reactor is created by a baffle, such as an axially aligned helix-shaped fin, to promote the mixing of combustion gas and feedstock. |
| 4490346 |
Method for producing carbon black |
December 25, 1984 |
| In the production of carbon black, low BTU content gases are combusted in a compact combustion zone with near stoichiometric amounts of oxidant gases, tempered to the desired temperature and volume with a diluent gas stream which can be selected from air and filter off-gases, and introdu |
| 4481828 |
Differential flow rate sensor |
November 13, 1984 |
| A venturi tube fluid flow meter comprising an inlet section with a first pressure probe upstream of the throat section that is an inner-end closed tube traversing the diameter of the inlet section and pressure probe that is a capped tube extending into the flow path of the throat section |
| 4446108 |
Carbon black manufacture |
May 1, 1984 |
| High tint residual carbon black is produced in a vortex flow, venturi oil furnace carbon black reactor by charging the liquid feed or make hydrocarbon axially as a solid jet into a swirling mass of hot combustion gases upstream from the venturi and passing the hydrocarbon feed and hot |
| 4439400 |
Apparatus for producing carbon black |
March 27, 1984 |
| Carbon black reactors have dual fluid injectors whereby liquid hydrocarbonaceous feedstock atomized by discharging the feedstock through a dual fluid injector with an atomizing fluid. A method for cleaning coke deposits from such dual fluid injectors comprises interrupting the supply |
| 4418050 |
Carbon black process |
November 29, 1983 |
| Carbon black reactor effluent is quenched and is then passed to a carbon black preagglomeration zone prior to being passed through the tubes of a shell-tube in direct heat exchange zone. The preagglomeration zone produces larger particles of carbon black, thereby minimizing deposits of |
| 4396590 |
Auto-preseparation of carbon black |
August 2, 1983 |
| Aerosols such as a carbon black containing smoke are subjected to an auto-preseparation by passing the aerosol or smoke through loose particles collected and accumulated and only thereafter passing the aerosol or smoke through a separator such as a filter bag. This changes the characteri |
| 4394350 |
Method and apparatus for vortex flow carbon black production |
July 19, 1983 |
| A method and apparatus for producing carbon black in which combustion gas is introduced into a precombustion or combustion zone of a carbon black reactor in a manner to produce a vortex of combustion gases traveling axially through said reactor and a flow of fluid which contains feedstoc |
| 4383973 |
Process and apparatus for making carbon black |
May 17, 1983 |
| Two carbon black reactors in sequence, one being a high-structure carbon black reactor, the other being a low structure carbon black reactor, one feeding into the other, yield low tint residual carbon black. |
| 4371511 |
Decreasing carbon black reactor fouling rate |
February 1, 1983 |
| The rate at which deposits are formed in carbon black reactors is reduced by feeding a contaminant rich feed oil stream into the reactor surrounded by a substantially contaminant free feed oil stream. |
| 4370309 |
Method for removing carbon black deposits |
January 25, 1983 |
| Combustion gases containing free oxygen and a carbonaceous feed are introduced into a carbon black reactor, with the combustion gases being at a temperature sufficient to pyrolyze the feed hydrocarbon to produce combustion products containing particulate carbon black. The combustion |
| 4368182 |
Carbon black production |
January 11, 1983 |
| A start-up procedure for a carbon black furnace wherein a low Btu off-gas as can be obtained from the filters in which the carbon black is separated from the carbon black reactor effluent is admixed with a high Btu fuel and passed along with combustion-supporting gas to a combustion zone |
| 4339422 |
Carbon black manufacture |
July 13, 1982 |
| High tint residual carbon black is produced in a vortex flow, venturi oil furnace carbon black reactor by charging the liquid feed or make hydrocarbon axially as a solid jet into a swirling mass of hot combustion gases upstream from the venturi and passing the hydrocarbon feed and hot |
| 4328199 |
Method for producing carbon black |
May 4, 1982 |
| Carbon black reactors have dual fluid injectors whereby liquid hydrocarbonaceous feedstock atomized by discharging the feedstock through a dual fluid injector with an atomizing fluid. A method for cleaning coke deposits from such dual fluid injectors comprises interrupting the supply |
| 4327069 |
Process for making carbon black |
April 27, 1982 |
| Two carbon black reactors in sequence, one being a high-structure carbon black reactor, the other being a low structure carbon black reactor, one feeding into the other, yield low tint residual carbon black. |
| 4321248 |
Method for vortex flow carbon black production |
March 23, 1982 |
| A method and apparatus for producing carbon black in which combustion gas is introduced into a precombustion or combustion zone of a carbon black reactor in a manner to produce a vortex of combustion gases traveling axially through said reactor and a flow of fluid which contains feedstoc |
| 4315901 |
Process for producing carbon black |
February 16, 1982 |
| Carbon black having a tint residual of less than about -5 is produced by injecting a feedstock axially into a vortex flow, oil furnace carbon black reactor having a cylindrical precombustion zone and a frustoconical converging zone. |
| 4313921 |
Carbon black process |
February 2, 1982 |
| In a carbon black process with tangential hot combustion gas introduction the pressure drop across the reactor is reduced by introducing a gas stream radially outwardly in close proximity with the upstream confining reactor wall. |
| 4306888 |
Method for filtering dust |
December 22, 1981 |
| A method for filtering dust from a dust-laden gas stream utilizing a tubular fabric filter is provided wherein cleaning of said filter is accomplished by backflow of gas through the filter wall and axial pulsations of gas along the longitudinal axis of the tubular filter. |
| 4302423 |
Apparatus and method for producing carbon black |
November 24, 1981 |
| Combustion gases containing free oxygen and feed hydrocarbon are introduced into a carbon black reactor, with the combustion gases being at a temperature sufficient to pyrolyze the feed hydrocarbon to produce particulate carbon black. The combustion products are cooled by quenching t |
| 4299797 |
Carbon black production |
November 10, 1981 |
| Carbon black is produced in a reactor by introducing a carbonaceous feed material into one end of the reactor. One or more streams of hot gases are introduced in a direction generally tangential to the side wall of the precombustion zone of the reactor and in a plane generally perpendicu |
| 4294814 |
Carbon black process and reactor |
October 13, 1981 |
| Stoichiometric combustion conditions are provided at a location remote from reactor walls in a carbon black process and apparatus by injecting radially inwardly hot combustion gases of a complementary composition with respect to the hot combustion gases introduced tangentially into the |
| 4285926 |
Start-up of carbon black process |
August 25, 1981 |
| A start-up technique for a carbon black production process, in which carbon black laden effluent smoke from a carbon black furnace is quenched to terminate the reaction and cool said smoke and said smoke is thereafter cooled, at least in part, by indirect heat exchange with water, in whi |
| 4279881 |
Carbon black production from solid carbonaceous feedstock |
July 21, 1981 |
| In an aspiration chamber of a carbon black reactor, the discharge end of a hydrocarbon inlet and the aspiration inlet of a hydrocarbon reaction section are arranged in such a proximate relationship that the hydrocarbon feed entering from said inlet into said reaction section aspirates |
| 4247530 |
Apparatus and method for producing carbon black |
January 27, 1981 |
| Combustion gases containing free oxygen and feed hydrocarbon are introduced into a carbon black reactor, with the combustion gases being at a temperature sufficient to pyrolyze the feed hydrocarbon to produce particulate carbon black. The combustion products are cooled by quenching t |
| 4245693 |
Waste heat recovery |
January 20, 1981 |
| A fixed fluidized particulate solids bed heat recovery vessle or steam generator having indirect heat exchange means within the bed and introduction of a gas containing an entrained solids by way of a spread tube bundle which connects the small diameter gas inlet conduit to the large |
| 4228143 |
Method of producing pelleted carbon black |
October 14, 1980 |
| Flocculent furnace carbon black is produced by contacting a feed hydrocarbon with hot combustion gases to pyrolyze the feed hydrocarbon. The hot combustion products produced by pyrolyzing include flocculent carbon black suspended in gases and are quenched to form a cooled effluent. T |
| 4225570 |
Carbon black production |
September 30, 1980 |
| Carbon black is produced in a reactor by introducing a carbonaceous feed material into one end of the reactor. One or more streams of hot gases are introduced in a direction generally tangential to the side wall of the precombustion zone of the reactor and in a plane generally perpendicu |
| 4224284 |
Carbon black reactor |
September 23, 1980 |
| A carbon black process is disclosed wherein at least a portion of the hydrocarbon feed is axially introduced into a longitudinal reactor, a portion of the hot combustion gases is introduced tangentially into said reactor so that it forms a vortex of hot combustion gases around the hy |
| 4206175 |
Apparatus for carbon black production from coal |
June 3, 1980 |
| In an aspiration chamber of a carbon black reactor, the discharge end of a hydrocarbon inlet and the aspiration inlet of a hydrocarbon reaction section are arranged in such a proximate relationship that the hydrocarbon feed entering from said inlet into said reaction section aspirates |
| 4191542 |
Filtering process for a carbon black-containing gas |
March 4, 1980 |
| A process for filtering carbon black-containing gas wherein an optimum of carbon black recovery is achieved by filtering at least the critical filtration time and up to 50 percent, preferably up to 20 percent, longer than said critical filtration time before backflowing. The critical |
| 4093705 |
Control of carbon black production |
June 6, 1978 |
| Carbon black is produced by heating a carbonaceous feed material to an elevated temperature to decompose the feed material to produce carbon black. A sample of the effluent from the reactor is passed as a suspension of carbon black particles in a gas into an optical cell. A beam of light |
| 4085197 |
Carbon black process |
April 18, 1978 |
| A carbon black process is disclosed wherein a hydrocarbon feedstock is axially introduced into a tubular reactor at one end, carbon black-bearing smoke is withdrawn at the other end, a first vortex of hot combustion gases is created around the hydrocarbon feedstream, and wherein a second |
| 4072468 |
Apparatus for the production of carbon black from coal |
February 7, 1978 |
| An apparatus for producing carbon black by pyrolytic decomposition of coal with hot combustion gases. In a cylindrically shaped vertical reactor coal is tangentially introduced, thus establishing a helically flowing mass of pulverized coal. This mass is contacted with hot combustion gase |
| 4058379 |
Filtering apparatus |
November 15, 1977 |
| A method and apparatus for filtering solids from a gas stream is disclosed wherein the flow of the gas stream through a filter medium is stopped after a filter cake has built up consisting of the solid particles having been filtered out of the gas stream, wherein a plurality of cleaning |
| 4048067 |
Filtering process and apparatus |
September 13, 1977 |
| Solids contained in liquids can be effectively separated therefrom by tangentially introducing these liquids into a downwardly converging conically shaped chamber, the walls of which consist of material porous to the liquid but impervious to the solid materials, withdrawing lean liquid |
| 4048063 |
Induced temperature gradient settling vessel |
September 13, 1977 |
| An apparatus and method are provided for settling small particles of micron and submicron size from a liquid in which the particles are contained. The method of the invention entails introducing the particle containing liquid into an apparatus of this invention. The apparatus is a settli |
| 4046864 |
Process to produce carbon black |
September 6, 1977 |
| A carbon black process is disclosed wherein a reactor is employed having in open axial alignment and operatively connected with each other an axial zone, an enlarged precombustion zone and a smaller Venturi-shaped reaction zone. Into this reactor hydrocarbon feed is axially introduced, f |
| 4013420 |
Carbon black reactor |
March 22, 1977 |
| An O-type carbon black reactor is disclosed comprising a precombustion chamber, at least one of the upstream and downstream confining walls thereof being provided with protrusions being arranged and shaped such as to destroy the inwardly spiraling boundary layer flow of the hot combu |
