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3359 results about "Coke" patented technology

Coke is a grey, hard, and porous fuel with a high carbon content and few impurities, made by heating coal or oil in the absence of air — a destructive distillation process. It is an important industrial product, used mainly in iron ore smelting, but also as a fuel in stoves and forges when air pollution is a concern.

Method and apparatus to protect synthesis gas via flash pyrolysis and gasification in a molten liquid

InactiveUS20080307703A1Improve efficiencyLittle heating lossWaste based fuelRetortsSyngasThermodynamics
Disclosed are a method and a corresponding apparatus for converting a biomass reactant into synthesis gas. The method includes the steps of (1) heating biomass in a first molten liquid bath at a first temperature, wherein the first temperature is at least about 100° C., but less than the decomposition temperature of the biomass, wherein gas comprising water is evaporated and air is pressed from the biomass, thereby yielding dried biomass with minimal air content. (2) Recapturing the moisture evaporated from the biomass in step 1 for use in the process gas. (3) Heating the dried biomass in a second molten liquid bath at a second temperature, wherein the second temperature is sufficiently high to cause flash pyrolysis of the dried biomass, thereby yielding product gases, tar, and char. (4) Inserting recaptured steam into the process gas, which may optionally include external natural gas or hydrogen gas or recycled syngas for mixing and reforming with tar and non-condensable gases. (5) Further reacting the product gases, tar, and char with the process gas within a third molten liquid bath at a third temperature which is equal to or greater than the second temperature within the second molten liquid bath, thereby yielding high quality and relatively clean synthesis gas after a relatively long residence time needed for char gasification. A portion of the synthesis gas so formed is combusted to heat the first, second, and third molten liquid baths, unless external natural or hydrogen gas is available for this use.
Owner:US SEC AGRI +1

Method for making coal fine into form coke by microwave energy

The invention relates to a method for producing formed coke, in particular to a method for preparing coal powder into the formed coke by microwave. The method adopts coal powder as raw material and comprises the following steps: sieving the coal powder for preparing fine coal powder, sending the fine coal powder into a first microwave heating device for dehydration until the water content of the heated fine coal powder is below 1 percent, and sending the heated fine coal powder into a second microwave heating device by a conveying device for dry distillation; performing the dry distillation to the fine coal powder by the second microwave heating device to analyze other materials in the coal powder, preparing carbocoal after the dry distillation, sending the carbocoal into a mixer by the conveying device to prepare the mixture after adding bonding material; sending the mixture to a forming machine by a conveyer for forming so as to prepare a formed coke semi-finished product; sending the reformed coke semi-finished product into a third microwave heating device for being heated and carbonized to prepare red coke, and sending the carbonized red coke into a coke car to prepare a formed coke product. The invention has low production cost, high production efficiency, cleanness and environment protection because coke powder and waste are not produced during the production.
Owner:唐山金强恒业压力型焦有限公司

Method for combination processing heavy oil by pyrolysis and gasification

The invention relates to a heavy oil processing method by combining thermal cracking and gasification. A raw material is conducted to a reactor from the bottom of a gas-solid separation region, is dispersed into oil drops through an atomizer; a lightweight component of the oil drop is volatilized to form oil gas in the falling process of the oil drops in a thermal cracking region; a heavy component is condensed to form coke, wherein the oil gas carries out thermal cracking reaction; coke particles drop into a gasification region and carry out gasification reaction at a temperature of between 800 and 1,600 DEG C to generate synthetic gas; one part of residual fine coke particles drop into an ash hopper to form clinker; the other part of the residual fine coke particles and the generated gas flow upwards together, are contacted with the descending liquid drops and carry out heat exchange; gas phase and coke in the gas-solid separation region of the upper part of the rector are separated; the separated fine coke particles re-drop into the thermal cracking region and the gasification region and continuously react; and the separated gas phase flows out of the rector, enters a subsequent separation system and is separated into synthetic gas, dry gas, liquid gas, gasoline, diesel, oil slurry and other products. The method has high gasification efficiency and reasonable utilization of heat energy and reduces energy consumption.
Owner:CHINA PETROLEUM & CHEM CORP +1

Three-fluidized-bed solid heat carrier coal pyrolysis, gasification and combustion cascade utilization method

The invention discloses a three-fluidized-bed solid heat carrier coal pyrolysis, gasification and combustion cascade utilization method. The method comprises the following steps of: mixing coal and high temperature circulating ash serving as a solid heat carrier in a fluidized bed pyrolysis furnace, pyrolyzing to separate out volatile, cooling and separating the volatile to obtain tar and pyrolysis gas, conveying pyrolysis semi-coke generated by pyrolyzing the coal to a fluidized bed gasification furnace, performing gasification reaction by using water vapor and O2 as gasification agents to prepare synthesis gas, conveying the semi-coke which is incompletely gasified in the gasification furnace to a circulating fluidized bed combustion furnace, blowing air for the conventional combustion or blowing O2/CO2 for oxygen-enriched combustion, heating the circulating ash serving as the solid heat carrier, and producing gasification agent vapor required by the gasification furnace by using high temperature flue gas generated by combustion. The method has the advantages that: the tar, the pyrolysis gas and the synthesis gas are co-produced through coal pyrolysis, gasification and combustion cascade utilization, the gasification condition of the semi-coke is reduced, and good economic benefits and social benefits are achieved.
Owner:ZHEJIANG UNIV

Combustible material plasma high-temperature gasification technique and equipment thereof

The invention relates to a combustible material plasma high-temperature gasification technique and equipment thereof. The technique comprises the following steps: firstly, laying a coke bed layer at the bottom part of a gasification furnace; secondly, putting the combustible material, a fluxing agent and an extra coke on the coke bed layer continuously to form a fuel bed layer; then injecting a primary oxidizing agent, starting a first-stage plasma torch to generate high temperature and high heat, forming a fusing zone at the joint of the coke bed layer and the fuel bed layer, forming a gasifying zone above the fusion zone, gasifying the combustible material to generate crude synthesis gas, and discharging the generated fused slag from the bottom part of the gasification furnace; then introducing the crude synthesis gas into a gas-solid separator for removing impurities to obtain purified synthesis gas; and finally introducing the purified synthesis gas into a detarrer, injecting a secondary oxidizing agent, starting a second-stage plasma torch to generate high temperature and high heat, cracking residual tar therein to obtain fined synthesis gas. The equipment mainly comprises three parts, namely the gasification furnace, the gas-solid separator and the detarrer. The fuel has good adaptability, high gasification efficiency, few tar content in the synthesis gas and high activeingredient.
Owner:SUNSHINE KAIDI NEW ENERGY GROUP CO LTD

Delayed coking process

The present invention relates to an improved delayed coking process. A coker feed, such as a vacuum resid, is treated with (i) a metal-containing agent and (ii) an oxidizing agent. The feed is treated with the oxidizing agent at an oxidizing temperature. The oxidized feed is then pre-heated to coking temperatures and conducted to a coking vessel for a coking time to allow volatiles to evolve and to produce a substantially free-flowing coke. A metals-containing composition is added to the feed at at least one of the following points in the process: prior to the heating of the feed to coking temperatures, during such heating, and / or after such heating.
Owner:EXXON RES & ENG CO

Process and equipment for negative pressure benzene removal

The invention discloses a process and equipment for negative pressure benzene removal , belonging to technology and equipment for recovering resultant in the coking industry, in particular to technology and equipment for removing and recovering benzene contained in coke gas. To solve the problems existing in the prior art, the invention develops the process for non-steam and non-distillation debenzolization under the negative pressure operation condition is developed and designs a novel debenzolization tower thus the disadvantages of equipment and process for benzene removal by adopting tubefurnace for heating rich oil under normal pressure can be overcome. The invention mainly has the advantages that firstly, as benzene is removed by the negative pressure process, the boiling point of the benzene and the partial pressure of the benzene in gaseous phase are lowered, and the benzene can be removed without using direct steam for steaming and blowing, thus waste water generated by the steam is reduced and the environment can not be polluted; secondly, the productive rate of dry coal due to benzene removal is increased to be more than 1.35 percent from the original 1 percent, and the recovery ratio of the benzene is increased to be more than 35 percent; and thirdly, compared with the existing benzene removal process, the process reduces the energy consumption by more than 20 percent.
Owner:JINAN METALLURGICAL CHEM EQUIP CO LTD

Coal gas, tar, semi-coke and steam poly-generation method based on fluidized bed pyrolysis technology

The invention relates to a coal gas, tar, semi-coke and steam poly-generation method based on a fluidized bed pyrolysis technology. The method comprises the following steps of: mixing coal and high-temperature semi-coke serving as a heat carrier in a fluidized bed pyrolysis furnace, heating, precipitating volatiles, and cooling and separating the volatiles to obtain tar and pyrolysis coal gas; discharging one part of semi-coke to obtain a semi-coke product, feeding the other part of semi-coke into a fluidized bed semi-coke heating furnace, performing combustion reaction with a small amount of fed air, heating all the fed semi-coke by using heat released after a small amount of semi-coke is combusted, feeding the heated semi-coke into a cyclone separator along with flue gas, and feeding the separated high-temperature semi-coke serving as the heat carrier into the fluidized bed pyrolysis furnace; and feeding the flue gas subjected to gas-solid separation into a complementary combustion waste heat boiler, completely combusting a small number of combustible components in the flue gas, producing steam, feeding into an air preheater to heat air required by combustion, removing dust by using a dust remover, and emptying. The method has the advantages of realizing the fractional conversion of the coal and improving the utilization efficiency and benefit of the coal.
Owner:ZHEJIANG UNIV

Ultra high power graphite resistor rod with 600mm diameter and method for producing the same

ActiveCN101553060ASolve capacitySolve the scale-up problemElectric discharge heatingVolumetric Mass DensityCoal
The present invention provides an ultra high power graphite resistor rod with 600mm diameter and a method for producing the same. The method utilizes domestic coal series acicular coke with low true density in main physicochemical standard, high heat expansion coefficient and sulphur content for producing the large-size ultra high power graphite resistor rod with 600mm diameter. Volumetric density, bending strength, elastic modulus, electric resistivity and heat expansion coefficient of the product reaches the international standard after detecting which can solve difficult problem that the domestic coal series acicular coke can not produce the large-size ultra high power graphite resistor rod with 600mm diameter because of low true density in main physicochemical standard, high heat expansion coefficient and sulphur content, and can realize localization for raw material acicular coke of the large-size ultra high power graphite resistor rod, simultaneity, also can solve problem that the acicular coke depends on importation in a long time and has high cost for restricting expanding yield and scale of the ultra high power graphite resistor rod in carbon industry. The product can reduce cost and improve economic performance.
Owner:KAIFENG CARBON CO LTD OF CHINA PINGMEI SHENMA GRP

Method for 1/3 coking coal to participate in coking and blending coal

The invention relates to a method for 1 / 3 coking coal to participate in coking and blending coal. The method comprises the following steps: (1) detecting the 1 / 3 coking coal; (2) classifying the 1 / 3 coking coal according to a detection result of the step (1); and (3) blending the coal. The invention carries out reasonable classifying and blending according to the 1 / 3 coking coal of each mineral site by characteristics, such as coal rock indexes, technological properties, a microstructure and the like, divides the 1 / 3 coking coal into four classes, controls the weight percent of each class of 1 / 3 coking coal in coking and blending coal and enhances the quality stability of coke.
Owner:武汉钢铁有限公司

Method and device for biomass compound gasification

The invention discloses a biomass complex gasification method and a device of the gasification. The thermal decomposition, the gasification, part of the oxidation process are combined in one reactor by the integrating the fluidized bed and the airflow bed. Firstly, the biomass is decomposed at 500 to 600 degrees C and generates hard coke; secondly, the hard coke with large grain sizes are partly oxidized and gasified in the hard coke gasifying section, which provides heat and generates combustible gas for the thermal decomposition section; thirdly, the reaction gases with small hard coke grains discharged from the thermal decomposition section and the catalyst fast flows upwards through the macromolecular gasifying section, and the reaction gas are partly oxidized because of the function of the secondary gasifying agent, the heavy tar component is forced simultaneously through thermal cracking reaction and catalytic cracking reaction with the catalyst at the temperature over 1000 degrees C and transformed to lightweight combustible gas; at last, the unreacted hard coke is sent back to the furnace through the gas-solid separation device and the solid recycling device. The biomass complex gasification method has the advantages of high gasification efficiency, low tar content, high control ability of the gas component, stable operation and easy enlargement.
Owner:江苏中科龙城能源系统有限公司

Water heat-transfer shift process for by-product high-grade steam energy-saving deep conversion

ActiveCN102701149AGuaranteed service lifeEliminate "dew point corrosion"HydrogenChemical recyclingComing outThermal energy
The invention relates to a water heat-transfer shift process for by-product high-grade steam energy-saving deep conversion. According to the process, a primary water heat-transfer shift converter and a secondary shift converter are adopted, CO in feed gas reacts with H2O to generate H2 and CO2 under the catalysis of a Co-Mo (copper-zinc) catalyst, and CO in shift gas coming out of a shift system is less than or equal to 0.1% (dry basis). In the process, CO is subject to deep conversion, the feed gas (containing water gas, semi-water gas, natural gas conversion gas or coke-oven gas conversion gas) utilization rate is high, the shift catalyst is not overheated, and the catalyst has a long service life; meanwhile, by-product saturated steam with the pressure of 0.5 to 9.0 MPa is generated, sensible heat and latent heat in the shift gas are further recovered by deoxygenated water and desalted water, low-grade heat energy is converted into high-grade heat energy, cooling water consumption is reduced, the temperature of` the shift gas coming out of a process system is lower than or equal to 40 DEG C, equipment is few, the flow is short, the investment is small, and the resistance is low (less than or equal to 0.05MPa).
Owner:NANJING DUNXIAN CHEM TECH

No-water stemming material for blast furnace taphole and its prepn

InactiveCN1810723AShorten the blasting timeExtend the tapping timeBlast furnace componentsBlast furnace detailsSlagRefractory
The present invention relates to amorphous refractory material, and is especially one kind of no-water stemming material for blast furnace taphole and its preparation process. The no-water stemming material is prepared with coke powder 15-25 wt%, clay 10-20 wt%, bauxite corundum 20-36 wt%, silicon carbide 10-20 wt%, asphalt 8-16 wt%, sericite 5-9 wt%, additive 1-5 wt% and binding agent 12-22 wt%, and through crushing, sieving, pre-mixing, rolling, kneading and extruding. The no-water stemming material has excellent plasticity and sintering performance, high strength at high and middle temperature and high slag and molten iron flush resistance, and can meet the requirement of high strength smelting in blast furnace.
Owner:NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Gas heat carrier low-temperature pyrolyzing furnace and gas heat carrier low-temperature pyrolyzing method

The invention discloses a gas heat carrier low-temperature pyrolyzing furnace and a gas heat carrier low-temperature pyrolyzing method. High-moisture materials are subjected to drying preprocessing in the pyrolyzing furnace by means of a gas heat carrier convection drying method, and hot gas is uniformly distributed in a drying section under the action of a gas distribution umbrella. Dried materials enter a dry distillation area where gas heat carriers transversely penetrate through materials, and exchange heat with the gas heat carriers prior to heating to enable low-temperature pyrolytic reaction. Gas in the furnace is formed by mixing lower coke quenching coal gas with hot flue gas in a combustion area, enters a flame path, then flows across a material layer from a flame path lattice wall to a gas collection lattice wall to enter a gas collection chamber, and is finally led out of the furnace through a gas collection passage formed by double-faced gas collection lattice walls and gas collection chamber gas distribution bricks. Pyrolyzed product hot semi-cokes enter a combined dry quenching device to be cooled and pass through a coal gas quenching area and a water-cooling heat exchange area sequentially. A guide chute on the lower portion of the furnace is connected with a discharger and a conveyor, and semi-cokes are uniformly led out and conveyed to a semi-coke storage yard under the action of the discharger and the conveyor.
Owner:北京德天御投资管理有限责任公司

Tamping plug for blast furnace spout and its preparation method

A stemming for the tap hole of blast furnace is proportionally prepared from industrial corundum particles, silicon carbide particles, medium-temp asphalt particles, Suzhou clay powder, coke powder, high-Al powdered coal ash and tar oil through proportional mixing, stirring and vacuum extruding. It features low cost and high stability.
Owner:CHINA UNIV OF GEOSCIENCES (BEIJING)

High titan type high alkalinity sinter and method for preparing same

The invention belongs to the field of metallurgy and mainly relates to a manufacture method for preparing a high titanium high pH value sintering ore by a v-ti magnetite concentrate ore. The technical problem needed to be solved is to provide a preparation method which takes the high titanium v-ti magnetite concentrate ore specially owned by Panzhihua as the material to prepare the high titanium high pH value sintering ore. The method is mainly characterized by taking the high titanium v-ti magnetite concentrate ore as the material with a sintering temperature of 1300 to 1400 DEG C. The technique of the invention applied to prepare the sintering ore is simply controlled; the high pH value sintering ore obtained by sintering is smelted; the technical economic indexes like the operating factors of a blast furnace, a coke ratio, a coal ratio, etc, and the like, are all improved. The method of the invention essentially improves the minimal components of a v-ti sintering ore, improves the intensity of the sintering ore and improves the metallurgy performance by improving the pH value of the v-ti sintering ore to 2.0 to 3.2, controlling a proper carbon addition amount and increasing the amount of a liquid phase.
Owner:PANGANG GROUP VANADIUM TITANIUM & RESOURCES

Method for processing wastewater by adsorbent combined with magnetic disc separation technology and application thereof

The invention belongs to the field of wastewater treatment and especially relates to a method for processing wastewater by an adsorbent combined with a magnetic disc separation technology. The invention solves the problems of COD and chromaticity exceeding standard in wastewater processed by a magnetic seed coagulation-magnetic separation technology in the prior art and provides the method for processing wastewater by the adsorbent combined with the magnetic disc separation technology. The purpose of the invention is realized by the following technical scheme: the method for processing wastewater by the adsorbent combined with the magnetic disc separation technology comprises steps of adding the adsorbent, a coagulant, a flocculating agent and a magnetic powder into wastewater, uniformly stirring, and separating and purifying by magnetic separation equipment, wherein the adsorbent is any one or a mixture of several components selected from zeolite, active carbon, a resin, diatomite, a resin, blast furnace slag, coal ash and coke.
Owner:四川冶金环能工程有限责任公司

Process and device for quickly preparing powdered active coke for desulfurization by utilizing pulverized coal

The invention relates to a process and a device for quickly preparing powdered active coke for desulfurization by utilizing pulverized coal. The process and the device are used for producing a powdered active coke product with certain desulfurization performance and reducing combustible gas. According to the process, the powdered active coke for desulfurization and a byproduct reducing gas are prepared from the pulverized coal of 20 to 500 microns by remaining in an entrained-flow bed fast reaction furnace for 1 to 60 seconds. The process and the device has three characteristics that 1, the desulfurization active coke can be prepared by directly utilizing the pulverized coal for combustion of a boiler, so in-situ preparation of a desulfurizing agent of a coal-fired power plant can be realized, and the production cost and the transportation cost of the active coke are reduced; 2, the reducing combustible gas generated in the production process of the active coke can serve as a reburning fuel and is fed into the boiler, so the production quantity of nitric oxide during combustion of the pulverized coal is reduced and the energy efficiency of the whole process is improved; and 3, sulfur dioxide can be recovered and high-concentration sulfur dioxide can be reduced into elemental sulfur, so resource utilization of the sulfur dioxide can be realized.
Owner:SHANDONG UNIV
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