16 results about "Carbonaceous matter" patented technology

A method for controlling the suction of process gas emitted by an electric arc furnace (20) inside its vessel (22) during operation comprises an adjustment step of adjusting the flow rate (Y) of the process gas sucked in, based on the value of at least one parameter, said at least one parameter comprising the flow rate (X2) of carbonaceous substance added inside said vessel (22) during the operation of said electric arc furnace (20).

The subject invention provides safe, environmentally-friendly compositions and efficient methods for extracting impurities from gold ore. More specifically, the subject invention provides compositions derived from microorganisms for pre-leaching treatments of gold ore, which can be used for reducing carbonaceous material in gold ore.

A method for sequestrating carbon-bearing materials in a subterranean formation by injecting a bio-slurry and determining the carbon emission effects of the injection process.

This disclosure relates to methods and systems for injecting and / or sequestering carbon-containing materials in underground wells, and, in some examples, for using the carbon-containing materials for enhanced oil recovery and well abandonment. An example method includes: obtaining a mixture including biochar particles and a liquid; and providing the mixture for injection into an underground well.

This disclosure relates to a method and a system for sequestering carbon-containing materials in underground wells. An example method includes: obtaining a material comprising a carbon-containing liquid; optionally testing the material for compatibility with an underground well; optionally adjusting a property of the material to improve the compatibility; and providing the material for injection into the underground well.

This application provides a method for preparing copper ingots from scrap copper materials, belonging to the field of scrap copper refining. The method includes: adding scrap copper materials and a composite flux into an oxygen-enriched side-blown smelting furnace, and injecting oxygen and fuel through the tuyeres on the side wall of the furnace to obtain a first copper liquid; introducing a mixed gas composed of water vapor and nitrogen into the bottom of the first copper liquid to obtain a second copper liquid; heating the second copper liquid to 1380–1450°C under vacuum conditions, adding titanium-containing and carbon-containing substances to the melt, and simultaneously subjecting the melt to ultrasonic field treatment; adding an aluminum-rare earth alloy to the melt, and continuing ultrasonic field treatment for 5–10 minutes to obtain a nano-reinforced copper-based composite melt; and casting the nano-reinforced copper-based composite melt into an electromagnetic crystallizer to obtain copper ingots. This method achieves high-value recycling of low-quality scrap copper and simultaneously solves the problem of easy agglomeration of the nano-reinforced phase in molten copper.

This invention discloses a gasification reduction ironmaking method and a gasification reduction furnace, belonging to the field of metallurgical chemical engineering. The method includes the following steps: Step 1: Carbonaceous material, oxygen, and water vapor are injected into the gasification reduction furnace from the top, and react at high temperature to generate crude syngas as the main component; Step 2: Iron-containing material is injected into the gasification reduction furnace from the bottom, and reacts with the crude syngas to generate elemental iron. This method generates crude syngas at the top of the gasification reduction furnace, while the iron-containing material reacts with it at the bottom. This avoids the overlap between the location of the reduction reaction of the iron-containing material and the location of the oxidation reaction of the carbonaceous powder, thus preventing the ash melted during crude syngas generation from encapsulating the iron-containing material and hindering the iron reduction reaction, thereby improving the efficiency of the reduction reaction of the iron-containing material.

This invention relates to the field of carbonaceous material reactor technology, specifically to a slag melter, comprising: a combustion aid distribution ring, which is a pipe arranged in a ring around the outer periphery of a discharger; a first pipe connected to the combustion aid distribution ring to introduce combustion aid; a gas-liquid fuel distribution ring, which is a pipe arranged in a ring around the outer periphery of the discharger; a second pipe connected to the gas-liquid fuel distribution ring to introduce gas-liquid fuel; multiple burners connected to both the combustion aid distribution ring and the gas-liquid fuel distribution ring; the multiple burners generate flames and high-temperature flue gas, which, in conjunction with the discharger, agitate, mix, oxidize, heat, and lift inorganic residues to produce molten liquid inorganic residues; this application distributes gas-liquid fuels and combustion aids as needed, fully mixes and combusts them, generates a stable high-temperature flame to agitate the inorganic residues according to operational needs, and adjusts the temperature of the inorganic residues, maintaining the slag level of the inorganic residues and ensuring smooth discharge.

To provide a method for producing a geopolymer foam having good appearance even when grain ash is used as a raw material.SOLUTION: The method for producing a geopolymer foam includes reacting a silicate of a metal having a valence of 2 or more with an alkali metal silicate to form a reaction slurry containing a geopolymer, and foaming the geopolymer in the reaction slurry with a foaming agent to form a geopolymer foam having a large number of cells, wherein as the alkali metal silicate, an alkali metal silicate solution obtained by adding a cereal ash containing 60% by mass or more of an amorphous silica component to an alkali metal ion-containing alkali solution is used. The total content of a carbon-containing substance and an insoluble metal oxide in the alkali metal silicate solution is controlled to ≤ 4 mass%.SELECTED DRAWING: None

A method is provided for manufacturing pig iron by melting a cold iron source in an electric arc furnace having a carbonaceous material injection device with which it is possible to efficiently inject a carbonaceous material into the molten iron without compromising safety. In the carbonaceous material injection device, while a carbonaceous material is injected with a carrier gas through a central portion of the carbonaceous material injection device, a fuel (b) and a combustion support gas (c) are injected through the respective outer peripheral portions of the carbonaceous material injection device, wherein the carbonaceous material (a) injected through the central portion passes through a cylindrical combustion flame generated by a combustion reaction between the fuel (b) and the combustion support gas (c) and is injected into molten slag and pig iron.Since the flow rate of the carbonaceous material (a), passing through the cylindrical combustion flame, is unaffected by the surrounding gas flow, the flow rate is not attenuated, resulting in a sustained high flow rate. Therefore, the carbonaceous material (a) separates from the carrier gas, maintaining high inertial force, and reaches the molten slag and molten iron.

The present invention relates to a carbon material composition comprising a carbon material (A) and a carbon material (B), the carbon material (A) comprising graphite having amorphous carbonaceous matter or graphitic matter, the pore distribution determined by mercury porosimetry having two or more peaks, the cumulative pore volume below the minimum value between the peak of the smallest pore diameter and the next peak being set as y (mL / g), the coating rate of the amorphous carbonaceous matter or graphitic matter of the graphite being set as x (%), when y ≤ -0.0084x + 0.13 is satisfied; the carbon material (B) having a pellet density of 1.80 g / cm 3 The above.

The utility model relates to a kind of multi-path slag discharge gasification furnace with central jet, comprising: furnace body, carbonaceous material import, conical distributor, fluidization gas import, central jet pipe, slag discharge pipe, powder discharge port, slag falling inclined pipe, synthetic gas outlet and gas-solid separation equipment;The furnace body is divided into dilute phase zone, dense phase zone, high-temperature oxidation zone, plenum and cold slag chamber from top to bottom.The utility model separates central jet pipe and slag discharge pipe, improves air inlet mode, optimizes slag discharge system, and avoids damage of central jet pipe under high temperature.Gasification furnace device has simple structure, no fine powder is discharged during the whole gas production process, has high gasification efficiency, and is easy to realize long-period stable operation of equipment.

The present invention pertains to a carbon material composition containing: a carbon material (A) that contains graphite having an amorphous carbonaceous substance or a graphitic substance and that has a pore distribution having two or more peaks as measured by mercury intrusion method; y < =-0.0084 x + 0.13 is satisfied, where y (mL / g) is the cumulative pore volume equal to or less than the minimum value between the peak having the smallest pore diameter and the next peak, and x (%) is the coating rate of an amorphous carbonaceous substance or a graphitic substance of graphite; the carbon material (B) has a pellet density of 1.80 g / cm3 or more.

The application discloses a liquid distribution device and a carbon-containing substance conversion reforming reactor, and the liquid distribution device is applied to high-salt wastewater jet distribution and comprises a feeding pipe, a distribution pipe and a broken jet head; an assisting broken gas is introduced into the feeding pipe from a first inlet, wastewater is introduced into the feeding pipe from a second inlet, the assisting broken gas and the wastewater are mixed in the feeding pipe and flow to the distribution pipe, enter the broken jet head, and under the action of a pressure difference of the wastewater and the assisting broken gas mixture, a self-breaking hammer rotates at a high speed, so that macromolecular aggregates in the wastewater are broken, and blockage of the macromolecular aggregates to the jet head is avoided, and the uniformity of liquid distribution is improved.

The invention provides a high-temperature-resistant device and a manufacturing method thereof. The manufacturing method of the high-temperature-resistant device comprises the following steps: providing a tantalum base material as a device body, carrying out oxidation treatment on the tantalum base material in an oxygen-containing environment to generate a tantalum oxide layer on the surface of the tantalum base material, burying the tantalum base material subjected to oxidation treatment in a carbon-containing substance, and carrying out carbonization reaction in inert gas to obtain the high-temperature-resistant device. Therefore, the tantalum oxide layer is converted into a tantalum carbide layer. The temperature of the oxidation treatment is between 100 DEG C and 1100 DEG C.

The utility model relates to a system for producing carbon nano tube and hydrogen by utilizing carbonaceous substance, which comprises a synthesis gas unit, a synthesis gas conversion unit, carbon nano tube production equipment and a tail gas treatment unit which are connected in sequence, the synthesis gas unit comprises a gasification furnace and a conversion furnace which are connected in sequence, the carbonaceous substance is gasified in the gasification furnace to obtain crude synthesis gas, and the crude synthesis gas is converted into hydrogen. Inputting the crude synthesis gas into a conversion furnace, and adjusting the ratio of H2 to CO to obtain synthesis gas; the synthesis gas generates a carbon-containing organic compound in the synthesis gas conversion unit, and the carbon-containing organic compound is used as a raw material for producing the carbon nanotube; a catalyst is arranged in the carbon nanotube production equipment, and the carbon nanotube production equipment is connected with the tail gas treatment unit through a tail gas pipe; the tail gas treatment unit comprises dust removal equipment, cooling equipment I and gas separation equipment which are connected in sequence, hydrogen is separated from tail gas generated by the carbon nanotube production equipment, the gas separation equipment is connected with the synthesis gas unit through a hydrogen pipeline, hydrogen is input, and the ratio of H2 to CO is adjusted.