32results about How to "Achieve pyrolysis" patented technology

The invention discloses a pyrolysis device for in-situ conversion of carbon-containing resources by microwave-assisted pyrolysis. The device comprises a microwave-assisted pyrolysis reactor, a solid outlet of the reactor is connected with an inlet of a pyrolytic carbon cooler, an outlet of the pyrolytic carbon cooler is connected with a slag storer through a deslagging machine, a gas outlet of the reactor is connected with an inlet of a condenser through a pipeline, the condenser is provided with a gas-liquid separator, a gas outlet of the condenser is connected with a gas purifier, an outlet of the gas purifier is connected with a gas compressor, a liquid outlet of the condenser is connected with a liquid circulating pump, then one branch of the condenser is connected with an oil storage tank, and the other branch of the condenser is connected back to the condenser through a cooling medium circulating system. The invention further discloses a method for the in-situ conversion of the carbon-containing resources by the microwave-assisted pyrolysis. By the pyrolysis device and the method for the in-situ conversion of the carbon-containing resources by the microwave-assisted pyrolysis, various low-grade carbon-containing resources can be collected, stored and continuously produced at an economic scale.

A linear Fresnel reflection type mid-and-low temperature solar energy thermochemical utilization device comprises a linear Fresnel reflection condensing mirror array driven by a solar tracking device to real timely track the sun, and a thermal absorber matched with the condensing mirror array and independently arranged, wherein the thermal absorber is tubular, a selective absorption coating is coated on the surface of the outer wall, and a chemical reactant medium and a catalyst are filled in the tube; a solar energy light-focusing system formed by the Fresnel reflection condensing mirror array and the solar tracking device is adopted and is well matched with the hot grade of thermal chemical reaction of mid-and-low temperature fossil fuel, the structure is simple, the manufacturing and running cost is low and the wing resistance is good when the solar energy thermochemical utilization device is mounted close to the ground; with the chemical reactant medium and the catalyst in the thermal absorber, the solar energy thermochemical utilization device can serve as the thermochemical reaction place while absorbing the solar energy, so that the heat can be directly absorbed and utilized, and the system integration complexity and energy transfer loss can be effectively reduced; as the thermal absorber is independently arranged, the safety and the stability are higher during the heat absorption and reaction process.

The invention provides a micro double-bed solid fuel decoupling combustion reaction dynamic analyzer which comprises a fuel pyrolytic reaction generation device, a residual coke combustion reaction generation device, a double-bed high-temperature coupling device, a gas path device and an analysis test device, wherein solid fuel is firstly pyrolyzed under an inert atmosphere in a micro gas flow bed; then residual cokes enter the micro gas flow bed for combustion test under an air atmosphere; a quick gas detector is used for judging a reaction mechanism by measuring a generation sequence and a generation quantity characteristic of gas components in a fuel pyrolysis process and a coke combustion process, so that reaction dynamic parameters can be calculated. According to the micro double-bed solid fuel decoupling combustion reaction dynamic analyzer, the combustion dynamic parameters of the solid fuel can be tested through direct decoupling combustion through independent and quick switching of the atmospheres and the temperature; the pyrolyzed residual cokes are directly subjected to the combustion test without a cooling process; the temperature rising rates of the gas flow bed and a fluidized bed are high, so that a combustion condition in an actual boiler can be well simulated; the measured reaction dynamic parameters are close to intrinsic reaction dynamic parameters.

The invention provides a method for preparing a silicon-iron alloy by using aluminum ash as a raw material and feeding material by a hollow electrode. According to the method, secondary aluminum ash is used as a raw material, an aluminum electrolysis cell waste cathode carbon block serves as a reducing agent, fly ash serves as an additive to adjust the content of aluminum in the raw materials, diatomaceous earth waste residues serve as additives to adjust the content of silicon in the raw materials, and high-temperature reduction in an electric arc furnace takes aluminum oxide and silicon oxide as main materials so as to prepare a certain-component aluminum-silicon-iron alloy; the hollow electrode is used for conveying powdery materials, so that the smelting process of the whole electric arc furnace can be enhanced, reduction of oxides and volatilization of fluoride are promoted, particularly, decomposition of the toxic substance aluminum nitride and the cyanide is accelerated, the production efficiency is improved, the production cost is reduced, and comprehensive utilization of various dangerous waste and solid waste is realized in the same process.

The invention discloses a coal pyrolysis apparatus. The coal pyrolysis apparatus comprises a coal pyrolysis device, a coal conveying device, a power source, a pyrolysis gas dust-removal device and a dust-removal particle supply device, wherein the coal pyrolysis device is used for carrying out pyrolysis on coals; the coal conveying device is used for conveying coals to the coal pyrolysis device; the power source is used for providing power for the coal conveying device; the pyrolysis gas dust-removal device is used for carrying out dust removal on gas subjected to pyrolysis; and the dust-removal particle supply device is used for supplying dust-removal particles to the pyrolysis gas dust-removal device. The coal pyrolysis apparatus disclosed by the invention is high in degree of automation, and high in utilization rate of dust-removal particles.

The invention discloses a preparation method of rice straw black carbon and belongs to the field of black carbon preparation. The preparation method comprises the following steps: (1) conveying rice straws into a tubular furnace and carrying out thermal decomposition to obtain plant ash; (2) adding the plant ash into hydrochloric acid and obtaining a mixed solution I; (3) carrying out standing andfiltering on the mixed solution I to obtain a filtering solid matter; (4) after washing the filtering solid matter, adding hydrofluoric acid and hydrochloride to obtain a mixed solution II; conveyingthe rice straws into the tubular furnace and carrying out the thermal decomposition to obtain plant ash; adding the plant ash into the hydrochloric acid and carrying out standing and filtering to obtain a filtering solid matter; after adding the hydrochloric acid and the hydrofluoric acid into the filtering solid matter, carrying out refining and filtering to obtain a solid matter, and washing the solid matter with ionized water to prepare a neutral solid; after drying the neutral solid, grinding and crushing to obtain powdery black carbon. By adopting the preparation method provided by the invention, the problem that rural crop straws are wasted can be solved and a foundation also can be laid for resource utilization of solid wastes; the preparation method can be used for preparing the rice straw black carbon.

The invention discloses coal pyrolysis equipment. The coal pyrolysis equipment comprises a coal pyrolysis device, a coal conveying device, a power source, a pyrolysis gas dust removal device and a dust removal particle supply device, wherein the coal pyrolysis device is used for pyrolyzing coals; the coal conveying device is used for removing the dust of the gas subjected to the coal pyrolysis; the power source is used for supplying power to the coal conveying device; the pyrolysis gas dust removal device is used for removing the dust of the gas subjected to the coal pyrolysis; the dust particle supply device is used for supplying dust removal particles to the pyrolysis gas dust removal device. The coal pyrolysis equipment is high in utilization rate of the dust removal particles.

The invention provides a device and method for preparing light aromatic hydrocarbon from biomass, the device comprises a raw material storage drying system, a circulating fluidized bed heat carrier heating furnace, a reaction system, a gas-solid separation system, a power system, a heat exchanger and a condensing tower, the reaction system comprises a downer reactor and a tubular fixed bed reactor which are connected in series; the gas-solid separation system comprises a group A gas-solid separation system arranged at a discharge port of the circulating fluidized bed heat carrier heating furnace, a group B gas-solid separation system arranged at a discharge port of the downer reactor and a group C gas-solid separation system arranged at a feed port of the downer reactor, and the group A gas-solid separation system comprises a three-stage cyclone separation device; the group B gas-solid separation system comprises a second-stage cyclone separation device, and the group C gas-solid separation system comprises a first-stage cyclone separation device, so that the system has the advantages of high efficiency, energy conservation, high yield of light aromatic hydrocarbon and easiness in industrial continuous production.

The invention discloses coal pyrolysis equipment. The equipment comprises a coal pyrolysis device used for performing pyrolysis on coal, a coal conveying device used for conveying coal to the coal pyrolysis device, a power source used for providing power to the coal conveying device, a pyrolysis gas dust collection device used for collecting dust for gas after coal pyrolysis, and a dust-removing particle supply device used for supplying dust-removing particle supply device to the pyrolysis dust-collection device. The coal pyrolysis equipment has high utilization of dust-removing particles.

The invention discloses coal pyrolysis equipment. The equipment comprises a coal pyrolysis device used for performing pyrolysis on coal, a coal conveying device used for conveying coal to the coal pyrolysis device, a power source used for providing power to the coal conveying device, a pyrolysis gas dust collection device used for collecting dust for gas after coal pyrolysis, and a dust-removing particle supply device used for supplying dust-removing particle supply device to the pyrolysis dust-collection device. The coal pyrolysis equipment has high automatic degree and high utilization of dust-removing particles.

The invention belongs to the field of industrial waste treatment, and relates to a method and a device for regenerating desulfurizing agents and sulfur serving as a by-product in magnesium desulfurization. The device comprises a magnesium sulfite storage bin, a fluidized bed calcining unit, a fluidized bed carbon thermal reduction unit and a sulfur recovery unit, the fluidized bed calcining unit comprises a fluidized bed calcining furnace, a calcining furnace high-temperature separator and an incinerator, the magnesium sulfite storage bin is connected with the lower portion of the fluidized bed calcining furnace, the bottom of the fluidized bed calcining furnace is connected with the incinerator, a top decomposition gas outlet of the fluidized bed calcining furnace is connected with the calcining furnace high-temperature separator, the fluidized bed carbon thermal reduction unit comprises a fluidized bed carbon thermal reduction tower and a reduction tower high-temperature separator, atop magnesium removal decomposition gas outlet of the calcining furnace high-temperature separator is connected with the bottom of the fluidized bed carbon thermal reduction tower, a top reduction gas outlet of the fluidized bed carbon thermal reduction tower is connected with the reduction tower high-temperature separator, and the reduction tower high-temperature separator is connected with themagnesium sulfite storage bin. Magnesium sulfite decomposition rate is higher than 99%, and the purity of recovered sulfur reaches 99.7% or more.