73 results about "Carbonaceous matter" patented technology

A multi-purpose, multi-oxy-fuel High Temperature Power Burner/Injector/Oxygen Lance, Mechanical System Apparatus Device, for steelmaking from recycled scrap and/or virgin ferrous charge, which can be employed in multi-oxy-fuel (natural gas; pulverized carbonaceous matter; heavy oil), especially by Oxygen Combusted mixture of Natural Gas/Pulverized Carbonaceous Matter in High Temperature Power Burner Mode, for efficient and rapid melting of solid ferrous charge (cold or preheated) in a special steelmaking Metallurgical Furnace or Open Hearth Furnace, Tandem Furnace, BOF, EAF, as its augmenting or only source of thermal energy; more than one Device in Oxygen-Natural Gas/Pulverized Carbonaceous Matter Power Burner Mode, can be employed as the only source of thermal energy in a modified, originally Electric Arc Furnace, as total replacement of Graphite Electrodes and Electric Arc System, the replacement being noticeably more primary energy efficient than the thermal energy provided by Graphite Electrode/Arc System; it also can be employed in an Solid Particles Injector Mode, for injecting of adequately granulated carbonaceous materials or lime into the molten steel for its carburizing or for foamy slag control; further it can be employed in a natural gas shrouded, pulsating oxygen stream, for vertically to the charge oriented soft blow supersonic Oxygen Injection Lance Mode, for decarburization of the molten metal contained in the hearth of the metallurgical furnace and foamy slag control; in one of the embodiments-generally arcuate-pivotally mounted, liquid media cooled composite body, is pivoted into and out of a furnace vessel through a small opening in the shell wall for auto-regulated constant optimal positioning of the Composite Body Tip against solid or molten charge, in each and all multi-purpose modes; furthermore, when inserted into the furnace vessel, the arcuate composite body can be rotated about its longitudinal axis for directing the oxy-fuel high temperature flame towards unmolten charge in the furnace; in an other-generally linear-embodiment, the liquid cooled composite body is attached to the mast type carrier allowing vertical movement of the composite body which enters the furnace vessel through a small opening in the furnace roof; the bimetallic, liquid cooled special tip assembly of both-arcuate and linear embodiments-of the composite body includes easy replaceable, independent, multi-opening nozzles, mounted in a protective, retracted position inside of the liquid cooled special tip assembly.

The invention discloses a method for preparing graphene. The method comprises the following steps of: after heating a substrate loaded with a copper metal layer to a bulk phase melting point and above the bulk phase melting point of copper in the flowing anaerobic and anhydrous atmosphere, introducing a carbon-containing compound into a system to perform chemical vapor deposition to obtain the graphene on the surface of the copper metal layer after the deposition. According to the method, the graphene with various shapes is prepared by introducing inert gases under a liquid state copper catalyst. The method is easy and convenient to operate and high in quality of products, and can be used for large-scale production. The shapes of the graphene can be regulated and controlled by regulating a concentration ratio of the inert gases to carbon-containing substances and hydrogen.

A process for producing syngas from a carbonaceous substance and/or treating a carbonaceous substance, the process including the following steps: a) reducing the surface moisture of the carbonaceous substance; b) reducing the inherent moisture of the carbonaceous substance; and, c) gasifying the carbonaceous substance to produce syngas, wherein at step a) the carbonaceous substance is directly contacted with a hot gas at a temperature of between 50° C. to 250° C., and/or the carbonaceous substance is indirectly contacted with saturated steam at a temperature of between 105° C. and 250° C.

The invention discloses a preparation method and an application of an isomerization catalyst. The method comprises the following specific steps: filling pore channels of a molecular sieve with hydrocarbon compounds firstly, then performing heating treatment to obtain a molecular sieve support with the blocked pore channels of the molecular sieve, supporting metal active components on the support,and performing drying and reduction to obtain the target catalyst. Part of organic matter is transformed into carbonaceous matter to block the pore channels of the molecular sieve by controlling treatment conditions, so that pore volume and pore channel depth of the molecular sieve are regulated. Compared with the prepared catalyst in the prior art, the catalyst prepared with the method has higherisomerization selectivity and isomerization yield in an isomerization reaction of n-alkanes.

The invention provides a chain type hydrogen and oxygen production integrated method, comprising the following steps: CuFe2O4 and solid carbonaceous matters are subjected to reduction reaction to obtain reduction products of Cu, Fe and FeO, wherein the Fe, the FeO and vapour are subjected to oxidation reaction to generate H2 and Fe3O4, and the residual Cu is in oxidation reaction with the Fe3O4 and air to generate CuFe2O4 by oxidation; and the CuFe2O4 is heated and decomposed to generate O2 and CuFeO2, and the CuFeO2 and air are in oxidation reaction to generate CuFe2O4 once again. The invention also provides a device for realizing the method, which comprises the main assemblies of a bubbling fluidized bed reactor, a cyclone separator, a sealing valve and a rapid fluidized bed. The invention can obtain H2 and O2 by chain type continuous preparation, has simple process and low energy consumption, can obtain H2 and O2 with the high purity approximate to 100%, realizes CO2 zero emission in the hydrogen production process and has broad application prospect.

The invention discloses a secondary oxidation pretreatment process for arsenic, sulphur and carbon-containing difficultly treated gold concentrate. The process sequentially comprises the following steps of: grinding concentrate again, removing a reagent, performing biological oxidation, chloridizing and oxidizing and cyaniding to leaching gold. In the process, the gold concentrate is oxidized by a biological oxidation process, and oxidizing slag is treated by using hypochlorite, so that the harmful influence of carbonaceous matter on the cyaniding and gold leaching is reduced greatly by chloridizing and oxidizing; and the process can effectively improve gold recovery rate, and is simple and environmental-friendly.

A porous preform (carrier) is soaked in an impregnating solution, which contains both of a catalytic-activity constituent, e.g. Ni and/or Co, and a carrier-forming constituent, e.g. Mg, Al, Zr, Ti and/or Ca, so as to simultaneously infiltrate the catalytic-activity and carrier-forming constituents into the porous preform. The impregnated preform is dried, calcined at a temperature of 700° C. or higher and then activated at a temperature of 500° C. or higher, whereby fine catalytic-activity particles are distributed on a surface of the porous carrier with high dispersion. Due to finely-distributed catalytic-activity particles, the surface of the catalyst is prevented from deposition of carbonaceous matters during reformation of hydrocarbon and held in an active state over a long term.

A negative electrode active material characterized in that carbonaceous matter essentially consisting of carbon adheres to the surface of a tin particle essentially consisting of tin, with a mixture phase, in which tin and carbon are mixed, interposed between the carbonaceous matter and the tin particle.

A reductive ore dressing technology for preparing the magnetite concentrate from poor hematitie or poor limonite includes such steps as pulverizing said poor hematite or limonite and carbon contained substance, mixing, cold die pressing to obtain lumps, heating at 280-1200 deg.C for 3-100 min to reduce Fe2O3 to Fe3O4, water cooling, grinding and magnetic separation.

The coal-derived solid hydrocarbon particles are discrete particles of coal-derived carbonaceous matter having a particle size less than about 10 μm that are substantially free of inherent or entrained mineral matter. The particles of have an average particle size in the range from 1 μm to 8 μm. The particles of coal-derived carbonaceous matter are milled to a size approximately the same as a size of coal-derived mineral matter inherent in the coal source to release inherent coal-derived mineral matter particles such that the particles of carbonaceous matter and the particles of mineral matter are discrete and separable solid particles. Following separation, less than 1.5 wt. % discrete coal-derived mineral matter particles are associated with the discrete particles of coal-derived carbonaceous matter. Particles of coal-derived solid hydrocarbon matter are blended with a gaseous or liquid hydrocarbon fuel to form a two-phase hydrocarbon fuel feedstock.

The invention relates to a pyrolysis device for a carbonaceous substance. In a pyrolysis process, the device can realize gas-solid separation and catalytic quenching and tempering synchronously. In the existing pyrolysis technology, gas-solid separation equipment of high temperature pyrolysis gas, catalytic quenching and tempering equipment and a pyrolysis device are independent to each other. Under the restriction of temperature drop outside the pyrolysis device, high-boiling point tar precipitates out, and dust cannot be effectively removed, thus causing dust entrainment and catalyst deactivation. And along with tar precipitation and accumulation, the dust also results in equipment and pipeline blockage. The invention is characterized in that the pyrolysis device provided by the invention has a double-layer structure, the pyrolysis gas produced by pyrolysis is subjected to three-level gas-solid separation measures, i.e. filtration by a pyrolysis device inner layer 2, separation by a gas collection chamber's diameter expanding segment 5 and filtration by a filtration layer 6, efficient gas-solid separation is realized in the pyrolysis device, and dust entrainment of oil gas products can be avoided. At the same time, a catalyst can be added into the filtration layer 6 to simplify the catalytic pyrolysis process and realize quenching and tempering of pyrolytic oil gas products.

A heat spreader structure includes at least one carbonaceous matter-metal composite layer having a plurality of carbonaceous particles and at least one metal-mesh layer having a plurality of meshes. The carbonaceous particles are either separately firmly held inside the meshes of the metal-mesh layer or covered and held in place by the metal-mesh layer. The carbonaceous matter-metal composite layer can be coated on a metal-made body through sintering to ensure good bonding of the carbonaceous particles to the metal-made body and accordingly enhance the heat spreading efficiency of the metal-made body. A method for manufacturing the heat spreader structure is also disclosed.

The invention discloses a preparation method of graded porous carbon. According to the technical scheme, the preparation method comprises the steps: firstly, adding a foaming agent into a low-melting-point solid carbon-containing substance, and mixing for later use; then under a certain pressure and atmosphere, heating to a temperature T1, and homogenizing for t1; and under a certain pressure andatmosphere, heating to a temperature T2, carrying out a reaction for t2, heating to a temperature T3, carrying out a reaction for t3, cooling to room temperature, cleaning and drying to obtain the graded porous carbon. The basic concept of the invention comprises that a macroporous structure is formed by a foaming technology, the porosity of the carbon material is further increased by utilizing generated reducing gas, and then more micropores and small mesopores are generated by utilizing cracking and intercalation of anode ions under heat treatment to form porous carbon with a micropore-mesopore-macroporous hierarchical pore structure. The method has the advantages of being high in operability, large in aperture adjusting range, accurate in regulation and control and the like.

The invention discloses a method for preparing silicon dioxide micropowder by using pulverized fuel ash extracted aluminum residue as a raw material and the silicon dioxide micropowder. The method for preparing the silicon dioxide micropowder by using the pulverized fuel ash extracted aluminum residue as the raw material comprises the following steps: step one. mixing sodium hydroxide and the pulverized fuel ash extracted aluminum residue, and calcining so as to obtain a calcination material; and step two. adding hydrochloric acid to the calcination material, reacting, filtering and drying so as to obtain the silicon dioxide micropowder. The method is characterized in that sodium silicate and sodium metaaluminate can be formed by mixing and calcining the sodium hydroxide and the pulverized fuel ash extracted aluminum residue; meanwhile, other carbon-containing substances in the pulverized fuel ash extracted aluminum residue can also be converted into carbon oxide so as to be removed; after the hydrochloric acid to the calcination material, aluminium chloride, sodium chloride soluble salt and silicon dioxide precipitates are generated by reaction, so that silicon dioxide is separated out; and the silicon dioxide micropowder with relatively high purity can be obtained by filtration and drying. The method is simple in technological operation, relatively short in operating period and suitable for large-scale recovery and production of large-scale silicon dioxide micropowder.

The effective coupling and combination of coal gasification and coal liquefaction techniques to produce ultra clean liquid fuels from carbonaceous matter preferably provided from an abundance of waste coal mining material. The method and apparatus includes a final sulfur washing step utilizing a zinc oxide membrane to remove virtually all sulfur from synthetic gas produced in an entrained flow gasifier before the synthetic gas is permitted to enter a slurry phase vessel having a catalyst used to produce a parafin from which liquid fuel is produced. The liquid fuel is preferably an ultra clean, high cetane, sulfur-free diesel fuel.

The invention discloses coal gasification equipment having a heat recovery function. The coal gasification equipment having the heat recovery function comprises a gasifier, a heat recovery device, a scrubber tower and a slag water treatment device, wherein the gasifier is used for combustion gasification of carbonaceous matter; the heat recovery device is connected with the gasifier and used for recovering heat contained in high-temperature high-pressure gas obtained after combustion in the gasifier; the scrubber tower is communicated with the gasifier and used for performing scrubbing dust collection on raw gas; the slag water treatment device is communicated with the scrubber tower and used for concentrating fine slag to recycle slag water. According to the coal gasification equipment having the heat recovery function, the rate of multipurpose utilization of coal can be increased, and energy is saved.

The invention relates to a combined type circulating fluidized bed gasification device and method, and relates to the technical field of fluidized bed gasification. The device and the method are mainly used for gasifying one or more solid carbonaceous matters in organic waste such as gasified coal, petroleum coke, biomass, garbage, sludge and the like or mixtures of the solid carbonaceous matters and other gas and liquid organic matters, higher gasification efficiency is obtained through improvement of raw material adaptability, and clean low-cost fuel gas or synthesis gas is produced. The main technical scheme is that the combined type circulating fluidized bed gasification device comprises a pyrolysis chamber, a gasifying chamber and a cyclone separator which are connected sequentially, wherein a raw material inlet, a pyrolysis gas outlet and a semi-coke outlet are formed in the pyrolysis chamber respectively, and the pyrolysis gas outlet is formed above the semi-coke outlet; a primary air inlet, a pyrolysis gas inlet and a semi-coke inlet are formed in the gasifying chamber, the pyrolysis gas outlet is connected with the pyrolysis gas inlet, and the semi-coke outlet is connected with the semi-coke inlet through an overflow pipe; a gas outlet is formed in the cyclone separator.

The invention relates to a solar energy-driven carbonaceous matter reaction and reaction product photocatalytic method. After sunlight passes through a beam splitter, a beam of light enters into a photocatalytic chamber, and the other beam of light irradiates into a cavity type light absorbing cavity through a glass cover plate; solid particles enter the light absorbing cavity through a particle inlet, and the solid particles and the inner wall of the light absorbing cavity simultaneously absorb the sunlight to convert the sunlight into heat energy; the high-temperature hot particles and a carbonaceous matter entering the light absorbing cavity through a carbonaceous matter inlet are mixed; meanwhile, the carbonaceous matter receives the radiation energy of the light absorbing cavity, and the carbonaceous matter rises in temperature to react; a reaction gaseous product flows into a reaction product catalytic treatment system, and most reaction gas and unsaturated reaction oil are catalyzed in the photocatalytic chamber and then flow to an oil storage tank to be stored. The solid particles are heated by a visible light band and an infrared band to provide heat for the carbonaceous material reaction; the unsaturated reaction oil in the reaction product is photocatalyzed by a UV band to increase the stability of the unsaturated reaction oil.

The present invention is directed to a process for producing ultra clean liquid fuel from abandoned mine waste. A feedstock is prepared from water and coal mine waste having relatively high ash (non-carbonaceous matter) content. Foundry slag is added to the feedstock as a fluxant to adjust the melting behavior of the ash in the feedstock. Preferably, the fluxant is blast furnace slag provided in a particle size of less than about 150 μm and is provided in an amount sufficient to lower the melting point of the ash in the feedstock by at least about 200° F. The feedstock is admitted with a flow of oxygen into a pressurized chamber of an entrained flow gasifier in which the feedstock and oxygen are heated to produce a synthetic gas from a coal component of the feedstock and molten slag from the ash and fluxant components of the feedstock. The molten slag is of a viscosity to freely flow out of the gasifier through an exit port in the bottom of the gasifier. The synthetic gas can be used to produce paraffin from which ultra clean liquid fuel can be produced.

The invention relates to a composite building humidity-controlling material and a preparation method thereof, and belongs to the technical field of building materials. The humidity-controlling material is prepared from quaternized chitosan modified sepiolite to be compounded with sierozem, ground calcium carbonate, quartz sand and attapulgite. A great number of detrital impurities such as carbonaceous matters, clay minerals and the like covered on the surface of the sepiolite are removed through acidification and purification, so that most of pore structures appear, the pore volume of the sepiolite is obviously increased, and the moisture absorption and release ability of the sepiolite is enhanced. Meanwhile, chitosan is subjected to quaternization modification, so that the moisture absorption is improved. During the cleaning process of pores of the sepiolite, the pores are filled with the chitosan to produce a composite effect with porous structures of the sepiolite, so that the diffusion performance of water vapor on the surface of the material or inside the material is improved, the capillary condensation of the water vapor inside the material is promoted, and the moisture absorption capacity of the material is increased. The humidity-controlling material has faster moisture absorption and release rate, so that the physical adsorption of the material to moisture is promoted,and the moisture absorption capacity is increased to further enhance the moisture absorption and release ability.

The invention discloses a dual-cavity type solar driven carbonaceous material reaction method and apparatus. A focused solar beam irradiates inside a light absorption cavity of a dual-cavity type heat absorption cavity after passing through a glass cover plate; solid particles enter into a separation disk surface of the light absorption cavity through a solid particle inlet; the solid particles and the separation disk surface can be used for absorbing solar light simultaneously, and the solar light is converted into heat energy; high-temperature hot solid particles enter into a downcomer inlet in the center of the light absorption cavity, and a downcomer outlet is connected to a reaction cavity by virtue of a pneumatic box; a preprocessed carbonaceous material is directly conveyed into the reaction cavity by virtue of a spiral conveying pipe and is mixed with hot ceramic particles from the pneumatic box, and the heat energy of the hot ceramic particles is absorbed by the carbonaceous material; meanwhile, the radiation energy of the separation disk surface of the light absorption cavity is absorbed to generate pyrolysis gas; reaction gas enters into a reaction gas product catalysis processing system from the gas outlet of the reaction cavity. The method disclosed by the invention can be used for improving the transfer rate of heat energy; meanwhile, the method can be used for solving the problems of uneven and changeable focus spots, and the service life of the light absorption cavity is prolonged.